• Article | | open

    Inelastic collapse, whereby particles can collide an infinite number of times in finite time, has been extensively studied, and occurs under the condition of particle inertia and elasticity. The authors propose a scenario for inelastic collapse in the physics of granular materials by numerically studying the deposition of totally inelastic particles in an overdamped dynamics showing that the two conditions above are not necessary to have inelastic collapse.

    • Nikola Topic
    •  & Thorsten Pöschel
  • Article | | open

    Observing the dynamical Casimir effect, where two particles are generated from the vacuum, is challenging in the optical regime due to its purely-temporal nature. The authors demonstrate a dispersion-oscillating fibre system operating in the near-infrared regime and capable of resolving correlated photon pairs as an analogue to the dynamical Casimir effect.

    • Stefano Vezzoli
    • , Arnaud Mussot
    • , Niclas Westerberg
    • , Alexandre Kudlinski
    • , Hatef Dinparasti Saleh
    • , Angus Prain
    • , Fabio Biancalana
    • , Eric Lantz
    •  & Daniele Faccio
  • Article | | open

    Pt–P and Pd–P-based glass forming liquids present many similarities and yet their glass forming ability seems to differ widely. Using Synchrotron X-ray scattering experiments the authors reveal structural differences in the two families of glass-forming liquids in which both the dominant local structural motifs and their connection schemes change upon alloy composition, potentially leading to different sensitivities to annealing or cooling rate induced embrittlement.

    • Oliver Gross
    • , Nico Neuber
    • , Alexander Kuball
    • , Benedikt Bochtler
    • , Simon Hechler
    • , Maximilian Frey
    •  & Ralf Busch
  • Article | | open

    During development, wound healing, differentiation or cancer metastasis, cells move continuously in heterogeneous environments, hence understanding how cell migration is controlled by confinement and by different substrate shapes is crucial to begin to build a first conceptual framework for cell motility. Here the authors develop a computational approach to systematically investigate the effect that a complex environment has on cell motion and speed.

    • Benjamin Winkler
    • , Igor S. Aranson
    •  & Falko Ziebert
  • Article | | open

    Many-body physics in atomically thin materials results in intriguing phenomena. Here the authors provide a theoretical insight of the electron–phonon induced double band splitting in the ARPES spectrum in MoS2 in terms of three well defined quasi-particles, one of which has a notably long lifetime.

    • Peio Garcia-Goiricelaya
    • , Jon Lafuente-Bartolome
    • , Idoia G. Gurtubay
    •  & Asier Eiguren
  • Article | | open

    The quasiparticle the biexciton is expected to be an important component in the construction and application of quantum states in quantum information computing but is typically not stable under ambient conditions. Here, the authors use nanoplasmonics to achieve the generation of biexcitons at room temperature in perovskite nanoplatelets.

    • Jie Chen
    • , Qing Zhang
    • , Jia Shi
    • , Shuai Zhang
    • , Wenna Du
    • , Yang Mi
    • , Qiuyu Shang
    • , Pengchong Liu
    • , Xinyu Sui
    • , Xianxin Wu
    • , Rui Wang
    • , Bo Peng
    • , Haizheng Zhong
    • , Guichuan Xing
    • , Xiaohui Qiu
    • , Tze Chien Sum
    •  & Xinfeng Liu
  • Article | | open

    Magnetic skyrmions are topological objects that have been recently extensively studied for their particular characteristics and a view to be used in spintronics devices. The authors present a Small Angle Neutron Scattering study of the deformation of magnetic skyrmion lattice propelled by an electric current and find that the skyrmions experience frictional movement at the edges of their sample providing better understanding of the motion of skyrmions.

    • D. Okuyama
    • , M. Bleuel
    • , J. S. White
    • , Q. Ye
    • , J. Krzywon
    • , G. Nagy
    • , Z. Q. Im
    • , I. Živković
    • , M. Bartkowiak
    • , H. M. Rønnow
    • , S. Hoshino
    • , J. Iwasaki
    • , N. Nagaosa
    • , A. Kikkawa
    • , Y. Taguchi
    • , Y. Tokura
    • , D. Higashi
    • , J. D. Reim
    • , Y. Nambu
    •  & T. J. Sato
  • Article | | open

    Revealing how to effectively produce nuclei remains one of the main motivations of recent nuclear reaction and nuclear transmutation studies of radioactive waste. The authors show the enhancement of proton rich isotope production using incomplete fusion mechanism on weakly bound nuclei using the incomplete fusion mechanism by the inverse kinematics technique, in which a radioactive beam of Palladium bombards a proton/deuteron target.

    • H. Wang
    • , H. Otsu
    • , N. Chiga
    • , S. Kawase
    • , S. Takeuchi
    • , T. Sumikama
    • , S. Koyama
    • , H. Sakurai
    • , Y. Watanabe
    • , S. Nakayama
    • , D. S. Ahn
    • , H. Baba
    • , S. D. Chen
    • , K. Chikaato
    • , M. L. Cortés
    • , N. Fukuda
    • , A. Hirayama
    • , R. Hosoda
    • , T. Isobe
    • , S. Kawakami
    • , Y. Kondo
    • , S. Kubono
    • , Y. Maeda
    • , S. Masuoka
    • , S. Michimasa
    • , I. Murray
    • , R. Nakajima
    • , T. Nakamura
    • , K. Nakano
    • , M. Nishimura
    • , T. Ozaki
    • , A. Saito
    • , T. Saito
    • , H. Sato
    • , Y. Shimizu
    • , S. Shimoura
    • , P. -A. Söderström
    • , Y. Soudo
    • , X. H. Sun
    • , J. Suwa
    • , D. Suzuki
    • , H. Suzuki
    • , H. Takeda
    • , M. Takechi
    • , Y. Togano
    • , T. Tomai
    • , H. Yamada
    • , M. Yasuda
    •  & K. Yoshida
  • Article | | open

    The superconducting proximity effect is the basis for topologically non trivial states in semiconducting nanowires, potentially useful for quantum information technologies. Here, the authors use integrated quantum dots as spectrometers to investigate the proximity effect, paving the way to systematic studies of subgap states.

    • Christian Jünger
    • , Andreas Baumgartner
    • , Raphaëlle Delagrange
    • , Denis Chevallier
    • , Sebastian Lehmann
    • , Malin Nilsson
    • , Kimberly A. Dick
    • , Claes Thelander
    •  & Christian Schönenberger
  • Article | | open

    Experimental verification of the Standard Model suffers from large errors when addressing spin-dependent Boson exchange between electrons and quarks. Here, optically trapped linear polyatomic molecules are proposed as probes of nuclear spin-dependent parity violation, exhibiting sensitivity which significantly exceeds the current state-of-the-art.

    • E. B. Norrgard
    • , D. S. Barker
    • , S. Eckel
    • , J. A. Fedchak
    • , N. N. Klimov
    •  & J. Scherschligt
  • Article | | open

    One of the core notions of quantum mechanics are cat states, pictorially described as a cat being simultaneously dead and alive. The authors describe an experimental realisation to generate a classical analogy to cat states using the orbital angular momentum degree of freedom of light and simulate the dynamical behaviours of the cat state in phase space.

    • Shi-Long Liu
    • , Qiang Zhou
    • , Shi-Kai Liu
    • , Yan Li
    • , Yin-Hai Li
    • , Zhi-Yuan Zhou
    • , Guang-Can Guo
    •  & Bao-Sen Shi
  • Article | | open

    Secure transfer of quantum information is of importance for the development of quantum technology such as quantum communication and storage. Here, the authors use carbon nuclear spins coupled to a nitrogen vacancy center to achieve reliable quantum state transfer of photon polarization.

    • Kazuya Tsurumoto
    • , Ryota Kuroiwa
    • , Hiroki Kano
    • , Yuhei Sekiguchi
    •  & Hideo Kosaka
  • Article | | open

    Nuclear magnetic resonance is a technique ubiquitous in a diverse range of scientific and clinical fields. However, it can be sensitive to small deviations in the driving magnetic fields, which can easily disrupt measurement accuracy. Here, the authors develop a hybrid-state free precession approach which demonstrates greater robustness against deviations in the magnetic fields and exhibits an improved signal-to-noise ratio.

    • Jakob Assländer
    • , Dmitry S. Novikov
    • , Riccardo Lattanzi
    • , Daniel K. Sodickson
    •  & Martijn A. Cloos
  • Article | | open

    The Casimir torque, a quantum effect caused by the vacuum and thermal fluctuations of the electromagnetic field, is a phenomenon that can cause friction, but is also a manifestation of the optical angular momentum of light. This work describes the transfer of angular momentum between spinning nanoparticles enabled by the Casimir torque and provides calculations for the rotational dynamics of the system.

    • Stephen Sanders
    • , Wilton J. M. Kort-Kamp
    • , Diego A. R. Dalvit
    •  & Alejandro Manjavacas
  • Article | | open

    Thunderstorms are thought to produce two types of high-energy emissions, terrestrial gamma-ray flashes and gamma-ray glows however due to the difficulty in their observation the exact relation between the two is still not well-understood. Here, the authors report the simultaneous detection of a gamma-ray glow and a downward terrestrial gamma-ray flash suggesting the origin of the two phenomena are related.

    • Yuuki Wada
    • , Teruaki Enoto
    • , Yoshitaka Nakamura
    • , Yoshihiro Furuta
    • , Takayuki Yuasa
    • , Kazuhiro Nakazawa
    • , Takeshi Morimoto
    • , Mitsuteru Sato
    • , Takahiro Matsumoto
    • , Daisuke Yonetoku
    • , Tatsuya Sawano
    • , Hideo Sakai
    • , Masashi Kamogawa
    • , Tomoo Ushio
    • , Kazuo Makishima
    •  & Harufumi Tsuchiya
  • Article | | open

    The anticipated role of skyrmions as information carriers in spintronic devices has, so far, been hampered by difficulties in controlling their motion. Here, the authors use micromagnetic simulations to investigate the temperature-dependent motion of skyrmions, revealing that their magnetic texture reacts on two different time scales.

    • Alexander F. Schäffer
    • , Levente Rózsa
    • , Jamal Berakdar
    • , Elena Y. Vedmedenko
    •  & Roland Wiesendanger
  • Article | | open

    The hard disk model is generally applied to study melting in two dimensional colloidal solids, which for idealized 2D systems proceeds through a solid to hexatic - hexatic to fluid process, but impurities perturb the hexatic phase for real systems. The paper reports Monte Carlo and molecular dynamics simulations of a 2D system of polydisperse hard disks, finding that increasing polydispersity decreases stability of hexatic phase, and that even for polydisperse systems there are re-entrant transitions at high density, which is not observed for 3D systems.

    • Pablo Sampedro Ruiz
    • , Qun-li Lei
    •  & Ran Ni
  • Article | | open

    BaFe2Se3 is a ladder-compound that exhibits superconductivity under pressure. Using a density matrix renormalization group calculation to compare results with resonant inelastic X-ray scattering measurements, the authors conclude that this material is realized in an orbital-selective Mott phase.

    • N. D. Patel
    • , A. Nocera
    • , G. Alvarez
    • , A. Moreo
    • , S. Johnston
    •  & E. Dagotto
  • Article | | open

    The complex nature of polycrystalline materials mean that characteristics such as their electronic band structure can be more challenging to interpret than their single crystal counterparts. Here, the authors present a framework based on angle-resolved photoemission spectroscopy to reveal the band dispersions for azimuthally disordered transition metal dichalcogenide polycrystalline monolayers.

    • S. Park
    • , T. Schultz
    • , A. Han
    • , A. Aljarb
    • , X. Xu
    • , P. Beyer
    • , A. Opitz
    • , R. Ovsyannikov
    • , L.-J. Li
    • , M. Meissner
    • , T. Yamaguchi
    • , S. Kera
    • , P. Amsalem
    •  & N. Koch
  • Article | | open

    Graphene is expected to be of particular use for Hall sensors but aspects of its electronic band structure and transport properties still require careful examination. Here, the authors analyse the performance of graphene sensors near the charge neutrality point and demonstrate the required trade-offs required to maximise the performance of a graphene-based Hall sensor.

    • Guibin Song
    • , Mojtaba Ranjbar
    •  & Richard A. Kiehl
  • Article | | open

    The study of electron dynamics in relativistic laser fields is a subject of major interest within the strong field physics community and has inspired several key applications aimed at accelerating charged particles. The authors present a theoretical study, and propose an experimental design, that address the interaction of electrons with intense lasers in the transition regime from classical to quantum and show that stochastic processes in the quantum regime allow electrons to be transmitted/reflected across/by the laser in the parameter region prohibited by classical dynamics.

    • X. S. Geng
    • , L. L. Ji
    • , B. F. Shen
    • , B. Feng
    • , Z. Guo
    • , Q. Yu
    • , L. G. Zhang
    •  & Z. Z. Xu
  • Article | | open

    Exceptional points are singularities in the parameter space of a system where, under certain conditions, gain and loss can coalesce and give rise to exotic behaviour. The authors report on the dynamical encircling of exceptional points in a waveguide system having more than two states, increasing our understanding of the chiral phenomena occurring in non-Hermitian systems.

    • Xu-Lin Zhang
    •  & C. T. Chan
  • Article | | open

    Ion production and acceleration is ubiquitous in astrophysical objects but many questions still remain on the mechanisms at play and while laboratory plasmas provide an “accessible” regime, non-thermal ion acceleration has not been observed in the laboratory before the advent of high-power lasers. The authors collide two relativistic plasma flows and observe large energy difference of the protons coming out of the interaction region with or without an external magnetic field, qualitatively corroborating their 1D and 2D particle-in-cell simulations.

    • D. P. Higginson
    • , Ph. Korneev
    • , C. Ruyer
    • , R. Riquier
    • , Q. Moreno
    • , J. Béard
    • , S. N. Chen
    • , A. Grassi
    • , M. Grech
    • , L. Gremillet
    • , H. Pépin
    • , F. Perez
    • , S. Pikuz
    • , B. Pollock
    • , C. Riconda
    • , R. Shepherd
    • , M. Starodubtsev
    • , V. Tikhonchuk
    • , T. Vinci
    • , E. d’Humières
    •  & J. Fuchs
  • Article | | open

    The technological importance of silicon is unquestionable; however the indirect bandgap of this semiconductor results in low excitation efficiency in the far field region of the electromagnetic spectrum. Here, the authors adopt optical near field excitation to improve the efficiency of Si, also paving the way for photodector applications based on other indirect band gap materials.

    • T. Yatsui
    • , S. Okada
    • , T. Takemori
    • , T. Sato
    • , K. Saichi
    • , T. Ogamoto
    • , S. Chiashi
    • , S. Maruyama
    • , M. Noda
    • , K. Yabana
    • , K. Iida
    •  & K. Nobusada
  • Article | | open

    Many problems in physics do not have an exact solution method, so their resolution has been sometimes possible only by guessing test functions. The authors apply Deep Reinforcement Learning (DRL) to control coherent transport of quantum states in arrays of quantum dots and demonstrate that DRL can solve the control problem in the absence of a known analytical solution even under disturbance conditions.

    • Riccardo Porotti
    • , Dario Tamascelli
    • , Marcello Restelli
    •  & Enrico Prati
  • Article | | open

    The ability to orient atomic spins via optical pumping has important implications for the fields of quantum information and metrology, and while polarization typically occurs parallel to the optical axis, it is often desirable to orient spins along a transverse magnetic field. This work demonstrates an optical pumping scheme for transverse orientation of the spin of cesium vapor, allowing control of spin trajectories.

    • Or Katz
    •  & Ofer Firstenberg
  • Article | | open

    Much of science revolves around predicting the future and retrodicting the past. In this study, the authors develop a theoretical framework that prescribes how the transition rates of a generic stochastic system should be perturbed so that the system becomes more susceptible to prediction or retrodiction, and demonstrate their method on two concrete systems: diffusion on a random network, and a thermalizing quantum harmonic oscillator.

    • Nathaniel Rupprecht
    •  & Dervis Can Vural
  • Article | | open

    Excitons are neutral quasiparticles, which are investigated as a potential component to improve the performance of photovoltaic cells however it is first necessary to develop methods to achieve multiexciton generation such as singlet fission. To this end the authors theoretically and experimentally demonstrate long-lived triplet exciton states via singlet fission enabled by the intermolecular coupling geometries in pentacene films.

    • R. Costantini
    • , R. Faber
    • , A. Cossaro
    • , L. Floreano
    • , A. Verdini
    • , C. Hӓttig
    • , A. Morgante
    • , S. Coriani
    •  & M. Dell’Angela
  • Article | | open

    Hofstadter’s butterfly is a fractal pattern which pictorially represents the behavior of electrons under an applied magnetic field in a 2D lattice as a pair of butterfly wings. Here, the authors recreate this pattern by measuring the acoustic density of states in a fine-tuned one-dimensional acoustic array.

    • Xiang Ni
    • , Kai Chen
    • , Matthew Weiner
    • , David J. Apigo
    • , Camelia Prodan
    • , Andrea Alù
    • , Emil Prodan
    •  & Alexander B. Khanikaev
  • Article | | open

    Electrons have been used to map the structural properties of materials since the discovery of the particle-wave duality, while recent advances in ultrafast electron sources enabled time-resolved electron scattering techniques to probe atomic-scale structural dynamics with femtosecond temporal accuracy. The authors demonstrate ultrafast nano-diffraction with relativistic beams as well as scanning transmission electron microscopy enabling them to probe the micro-texture in complex heterogeneous materials.

    • F. Ji
    • , D. B. Durham
    • , A. M. Minor
    • , P. Musumeci
    • , J. G. Navarro
    •  & D. Filippetto
  • Article | | open

    Nanoparticle carriers are increasingly used for targeted drug delivery and other medical applications and ideally one would want several functionalities associated with one single nanocarrier. The authors report a method to improve collection and minimize aggregation of plasma polymerized nanoparticles by modifying the substrate design on which they are collected from a typical 2D geometry into a series of well-like structures which increase sample yield as well as inhibiting their fusion with the substrate itself.

    • Miguel Santos
    • , Bryce Reeves
    • , Praveesuda Michael
    • , Richard Tan
    • , Steven G. Wise
    •  & Marcela M. M. Bilek
  • Article | | open

    The aim of quantum communications is to transmit quantum information at high rate over long distances, something that can only be achieved by quantum repeaters and quantum networks. Here the author presents the ultimate end-to-end capacities of a quantum network, also showing the advantages of multipath network routing versus single repeater chains.

    • Stefano Pirandola
  • Article | | open

    Antiferromagnets are expected to be a key part of next generation electronic devices however their magnetic interactions prove difficult to access. Here, the authors demonstrate that the surface sensitive spin-Hall magnetoresistance, along with a simple analytical model, can successfully probe the internal anisotropies of the model antiferromagnet hematite (α-Fe2O3).

    • R. Lebrun
    • , A. Ross
    • , O. Gomonay
    • , S. A. Bender
    • , L. Baldrati
    • , F. Kronast
    • , A. Qaiumzadeh
    • , J. Sinova
    • , A. Brataas
    • , R. A. Duine
    •  & M. Kläui
  • Article | | open

    The experimental realisation of a Kondo lattice and the interplay with Mott–Hubbard charge localisation is one of the many challenges in condensed matter physics. The authors deposit f-elements onto a metallic substrate to elucidate the conditions required to obtain a Kondo lattice on a superlattice and investigate the interplay with the Mott physics.

    • Hovan Lee
    • , Evgeny Plekhanov
    • , David Blackbourn
    • , Swagata Acharya
    •  & Cedric Weber
  • Article | | open

    Systems composed of neutral atoms and photons provide an ideal platform for the emerging field of quantum non-linear optics, which in turn is of interest for quantum technologies and the study of many-body physics. The authors theoretically propose a hybrid light-matter quasi-particle akin of polaritons composed of an optical soliton trapping a fermionic atom that carries a nontrivial topological quantum number.

    • Kieran A. Fraser
    •  & Francesco Piazza
  • Article | | open

    Hot carrier generation via plasmon decay is an important mechanism in quantum plasmonics and is typically understood using semiclassical theory however a fully quantum method is required to properly analyse such systems. To this end, the authors develop a quantum-mechanical approach to describe the decay of quantized plasmons into hot electrons and holes.

    • Lara Román Castellanos
    • , Ortwin Hess
    •  & Johannes Lischner
  • Article | | open

    Dynamic light scattering is a method used to examine the dynamics and the size distribution of submicrometer particles and operates in reciprocal space. The authors apply the fundamentals of this technique to magnetic resonance imaging in order to examine particle motion below the spatial resolution in short measurement time.

    • Volker Herold
    • , Thomas Kampf
    •  & Peter Michael Jakob
  • Article | | open

    The effect of localized disruption or failure in interdependent networks with internal community structure remains an open question. Adopting the generating function approach, the authors are able to uncover rich phase transition behaviours and the associated risks for such system, and by studying real networks under random failures within a community, they find that weakening the community strength could rapidly drive the system to a precarious state.

    • Jiachen Sun
    • , Rui Zhang
    • , Ling Feng
    • , Christopher Monterola
    • , Xiao Ma
    • , Céline Rozenblat
    • , H. Eugene Stanley
    • , Boris Podobnik
    •  & Yanqing Hu
  • Article | | open

    High-entropy alloys establish a new conceptual framework for alloy design and can exhibit outstanding properties attractive for technological applications. The authors investigate the pressure induced magnetovolume effect in the high-entropy alloy CoCrFeAl and find its origin in two progressive, experimentally tunable magnetic transitions.

    • Lei Liu
    • , Shuo Huang
    • , Levente Vitos
    • , Minjie Dong
    • , Elena Bykova
    • , Dongzhou Zhang
    • , Bjarne S. G. Almqvist
    • , Sergey Ivanov
    • , Jan-Erik Rubensson
    • , Bela Varga
    • , Lajos K. Varga
    •  & Peter Lazor
  • Article | | open

    Hexagonal boron nitride has been theoretically predicted to have high values for its thermal conductivity which would make it useful for thermal management of devices but these values have not been experimentally achieved. The authors manipulate the isotope concentration of B to increase the thermal conductivity and reach these predicted values.

    • Chao Yuan
    • , Jiahan Li
    • , Lucas Lindsay
    • , David Cherns
    • , James W. Pomeroy
    • , Song Liu
    • , James H. Edgar
    •  & Martin Kuball
  • Article | | open

    The energy efficient control of magnetisation for memory applications is one of the most important challenges in the field of spintronics. The authors investigate theoretically the possibility of the switching a one-dimensional antiferromagnet using an external electric field.

    • T. H. Kim
    • , S. H. Han
    •  & B. K. Cho
  • Article | | open

    Protons can be accelerated up to energies of tens of MeV by having an ultra-intense laser pulse interacting with a solid target, in a mechanism known as Target Normal Sheath Acceleration. The authors show that strong enhancement of proton acceleration and number can be achieved by splitting the laser pulse into two parts of equal energy and opposite incidence angles.

    • J. Ferri
    • , E. Siminos
    •  & T. Fülöp
  • Article | | open

    In a society relying on large amount of digital information and big data, information security is of paramount importance. The authors present a concept of physically unclonable function (PUF) based on the randomness of biological systems and offering the potential for a fully unclonable, reproducible and reconfigurable PUF.

    • Akshay Wali
    • , Akhil Dodda
    • , Yang Wu
    • , Andrew Pannone
    • , Likhith Kumar Reddy Usthili
    • , Sahin Kaya Ozdemir
    • , Ibrahim Tarik Ozbolat
    •  & Saptarshi Das
  • Article | | open

    Semiconductor microcavities coupled to a quantum well can produce three regimes of coherent light generation depending on the nature of the light–matter and electron–hole interactions. The authors design a Se/Te based microcavity containing a single quantum well which enables them to achieve all three lasing regimes in the one device.

    • Krzysztof Sawicki
    • , Jean-Guy Rousset
    • , Rafał Rudniewski
    • , Wojciech Pacuski
    • , Maciej Ściesiek
    • , Tomasz Kazimierczuk
    • , Kamil Sobczak
    • , Jolanta Borysiuk
    • , Michał Nawrocki
    •  & Jan Suffczyński
  • Article | | open

    Quantum phase transitions and emergent electronic ordered states are intriguing phenomena in condensed matter physics. Using a ruthenate material system, the authors employ scanning tunnelling microscopy and spectroscopy to visualise the transition from a metal to a Mott insulator via doping and find evidence for emergent charge order.

    • Justin Leshen
    • , Mariam Kavai
    • , Ioannis Giannakis
    • , Yoshio Kaneko
    • , Yoshi Tokura
    • , Shantanu Mukherjee
    • , Wei-Cheng Lee
    •  & Pegor Aynajian
  • Article | | open

    Electron paramagnetic resonance (EPR) spectroscopy is an important technology for many branches of science where unpaired electrons need to be unambiguously detected. The authors propose an EPR spectrometer that uses a single artificial atom as a sensitive detector of spin magnetization enabling them to significantly improve the sensitivity when small sample volumes are present.

    • Hiraku Toida
    • , Yuichiro Matsuzaki
    • , Kosuke Kakuyanagi
    • , Xiaobo Zhu
    • , William J. Munro
    • , Hiroshi Yamaguchi
    •  & Shiro Saito
  • Article | | open

    Magnetic resonance imaging is widely used for the diagnosis of many ailments and efforts to continuously improve image resolution and decrease acquisition time are strongly sought after. The authors demonstrate that the application of specially designed metamaterials could help improve the signal-to-noise ratio, which in turn can be translated to boost the performance of MRI.

    • Guangwu Duan
    • , Xiaoguang Zhao
    • , Stephan William Anderson
    •  & Xin Zhang
  • Article | | open

    Soliton explosions are a nonlinear instability phenomenon in which a dissipative soliton experiences a sudden structural collapse, but can return back to its original shape despite the strong energy dissipation. The authors report the experimental observation of soliton explosions in a fibre laser, finding that the instability is triggered by the collision of double dissipative solitons.

    • Junsong Peng
    •  & Heping Zeng
  • Article | | open

    Ferroelectric negative capacitance could be used to overcome the Boltzmann limit for next-generation energy-efficient transistors. This study demonstrates the performance capability of nanothick ZrO2 observing negative capacity and ferroelectric inductance and characterizes the role of multidomains in the observed behaviors.

    • Po-Hsien Cheng
    • , Yu-Tung Yin
    • , I-Na Tsai
    • , Chen-Hsuan Lu
    • , Lain-Jong Li
    • , Samuel C. Pan
    • , Jay Shieh
    • , Makoto Shiojiri
    •  & Miin-Jang Chen