News & Views |
Featured
-
-
Article |
Evidence for chiral graviton modes in fractional quantum Hall liquids
Through inelastic light scattering chiral spin-2 long-wavelength magnetorotons are observed, revealing chiral graviton modes in fractional quantum Hall states and aiding in understanding the quantum metric impacts in topological correlated systems.
- Jiehui Liang
- , Ziyu Liu
- & Aron Pinczuk
-
Article |
Optomechanical realization of the bosonic Kitaev chain
We report the experimental realization of a bosonic Kitaev chain in a nano-optomechanical network.
- Jesse J. Slim
- , Clara C. Wanjura
- & Ewold Verhagen
-
Article
| Open AccessHigh-fidelity spin qubit operation and algorithmic initialization above 1 K
Initialization and operation of spin qubits in silicon above 1 K reach fidelities sufficient for fault-tolerant operations at these temperatures.
- Jonathan Y. Huang
- , Rocky Y. Su
- & Chih Hwan Yang
-
Article |
Controlling the helicity of light by electrical magnetization switching
The helicity of light from a light-emitting diode can be electrically controlled by spin–orbit torque effects, enabling a seamless integration of magnetization dynamics with photonics.
- Pambiang Abel Dainone
- , Nicholas Figueiredo Prestes
- & Yuan Lu
-
Article |
Evidence of the fractional quantum spin Hall effect in moiré MoTe2
Transport evidence of a fractional quantum spin Hall insulator is reported in 2.1°-twisted bilayer MoTe2, which supports spin-Sz conservation and flat spin-contrasting Chern bands.
- Kaifei Kang
- , Bowen Shen
- & Kin Fai Mak
-
News & Views |
Magnetic whirlpools offer improved data storage
Complex magnetic structures called skyrmions have been generated on a nanometre scale and controlled electrically — a promising step for fast, energy-efficient computer hardware systems that can store large amounts of data.
- Qiming Shao
-
News & Views |
Complex motions emerge from robot interactions
An array of robots has been set up so that pushes between them produce movements that do not conform to the usual laws of motion. Fascinating behaviour emerges from these interactions: wave phenomena known as solitons.
- Sebastian D. Huber
- & Kukka-Emilia Huhtinen
-
Article |
Dual quantum spin Hall insulator by density-tuned correlations in TaIrTe4
A study reports a dual quantum spin Hall insulator in monolayer TaIrTe4, arising from the interplay of its single-particle topology and density-tuned electron correlations.
- Jian Tang
- , Thomas Siyuan Ding
- & Qiong Ma
-
Article |
All-electrical skyrmionic magnetic tunnel junction
Wafer-scale realization of a nanoscale magnetic tunnel junction hosting a single, ambient skyrmion enables its large readout, efficient switching, and compatibility with lateral manipulation, and thereby provides the backbone for all-electrical skyrmionic device architectures.
- Shaohai Chen
- , James Lourembam
- & Anjan Soumyanarayanan
-
Article
| Open AccessRotating curved spacetime signatures from a giant quantum vortex
By stabilizing a stationary giant quantum vortex in superfluid 4He and introducing a minimally invasive way to characterize the vortex flow, intricate wave–vortex interactions are shown to simulate black hole ringdown physics.
- Patrik Švančara
- , Pietro Smaniotto
- & Silke Weinfurtner
-
Article |
Non-reciprocal topological solitons in active metamaterials
A local driving mechanism for solitons that accelerates both solitons and antisolitons in the same direction, called non-reciprocal driving, is introduced, showing a subtle interplay between non-reciprocity and topological solitons and providing waveguiding and wave-processing possibilities for other fields.
- Jonas Veenstra
- , Oleksandr Gamayun
- & Corentin Coulais
-
Article
| Open AccessAnomalous electrons in a metallic kagome ferromagnet
Laser-based micro-focused angle-resolved photoemission spectroscopy reveals both fractionalized and marginal quasiparticles in C3-symmetric electron pockets near the Brillouin zone centre of the ferromagnetic kagome metal Fe3Sn2.
- Sandy Adhitia Ekahana
- , Y. Soh
- & G. Aeppli
-
News & Views |
Quantum sensor settles debate about superconductivity in hydrides
By adapting a device designed to create extremely high pressures into one that can sense magnetic fields, researchers have obtained evidence that a hydrogen-rich material is a superconductor, eliminating long-standing doubts.
- Kin On Ho
- & Sen Yang
-
Article |
Imaging the Meissner effect in hydride superconductors using quantum sensors
In order to explore superconductivity in hydride materials, local magnetometry inside a diamond anvil cell is performed with sub-micron spatial resolution at megabar pressures using nitrogen-vacancy colour centres.
- P. Bhattacharyya
- , W. Chen
- & N. Y. Yao
-
Article |
Fractional quantum anomalous Hall effect in multilayer graphene
Integer and fractional quantum anomalous Hall effects in a rhombohedral pentalayer graphene–hBN moiré superlattice are observed, providing an ideal platform for exploring charge fractionalization and (non-Abelian) anyonic braiding at zero magnetic field.
- Zhengguang Lu
- , Tonghang Han
- & Long Ju
-
Article |
Observation of plaid-like spin splitting in a noncoplanar antiferromagnet
Examining the in-plane spin components of the noncoplanar antiferromagnet manganese ditelluride provides spectroscopic and computational evidence of materials with a new type of plaid-like spin splitting in the antiferromagnetic ground state.
- Yu-Peng Zhu
- , Xiaobing Chen
- & Chang Liu
-
News & Views |
New type of magnetism splits from convention
Magnetic materials with zero net magnetization fall into two classes: conventional antiferromagnets and altermagnets. Physicists have identified a property in altermagnets that widens the divide between the two groups.
- Carmine Autieri
-
News & Views |
Layered ferroelectric materials make waves — and vortices
By combining materials-synthesis techniques, researchers have come up with a way of building layered structures that display intriguing wave-like patterns of electric polarization, and could be useful for next-generation electronics.
- Berit H. Goodge
-
Research Briefing |
Topological matter created on a quantum chip produces quasiparticles with computing power
Non-Abelian anyons are emergent quasiparticles found in exotic quantum states of matter, which could have applications in fault-tolerant topological quantum computing. But performing the manipulations necessary to make these quasiparticles has proved a challenge — now overcome through a happy confluence of theoretical and experimental innovation.
-
Article
| Open AccessA 2D ferroelectric vortex pattern in twisted BaTiO3 freestanding layers
The stacking of freestanding ferroelectric perovskite layers with controlled twist angles results in a peculiar pattern of polarization vortices and antivortices that emerges from the flexoelectric coupling of polarization to strain gradients.
- G. Sánchez-Santolino
- , V. Rouco
- & J. Santamaria
-
Article
| Open AccessAltermagnetic lifting of Kramers spin degeneracy
Using photoemission spectroscopy and ab initio calculations, evidence is given of two distinct unconventional mechanisms of lifted Kramers spin degeneracy generated by the altermagnetic phase of centrosymmetric MnTe with vanishing net magnetization.
- J. Krempaský
- , L. Šmejkal
- & T. Jungwirth
-
Article
| Open AccessEvidence of superconducting Fermi arcs
We provide evidence for superconducting topological Fermi arcs in PbBi2—a Weyl semimetal previously studied mostly for its bulk properties—from which Marjorama fermions could be derived for research in quantum computers.
- Andrii Kuibarov
- , Oleksandr Suvorov
- & Sergey Borisenko
-
Article
| Open AccessSignatures of a surface spin–orbital chiral metal
A spin–orbital- and angular-momentum-sensitive methodology used to study Sr2RuO4 reveals subtle spectroscopic signatures that are consistent with the formation of spin–orbital chiral currents at the surface of the material.
- Federico Mazzola
- , Wojciech Brzezicki
- & Antonio Vecchione
-
Article |
Observation and quantification of the pseudogap in unitary Fermi gases
This study describes experiments with ultracold lithium Fermi gases in which many-body pairing leads to the emergence of a pseudogap, and it confirms theoretical predictions relevant to cuprate superconductivity.
- Xi Li
- , Shuai Wang
- & Jian-Wei Pan
-
Article |
Observing dynamical phases of BCS superconductors in a cavity QED simulator
The dynamical phases of out-of-equilibrium Bardeen–Cooper–Schrieffer superconductors have been simulated using cold atoms levitated inside an optical cavity.
- Dylan J. Young
- , Anjun Chu
- & James K. Thompson
-
Article |
Tuning commensurability in twisted van der Waals bilayers
Using valley-resolved scanning tunnelling spectroscopy, twisted WSe2 bilayers are studied, including incommensurate dodecagon quasicrystals at 30° and commensurate moiré crystals at 21.8° and 38.2°.
- Yanxing Li
- , Fan Zhang
- & Chih-Kang Shih
-
Article |
Two-dimensional heavy fermions in the van der Waals metal CeSiI
We present comprehensive thermodynamic and spectroscopic evidence for an antiferromagnetically ordered heavy-fermion ground state in the van der Waals metal CeSiI.
- Victoria A. Posey
- , Simon Turkel
- & Xavier Roy
-
Article
| Open AccessObservation of interband Berry phase in laser-driven crystals
The Berry phase is resolved in light-driven crystals, via attosecond interferometry, in which the electronic wavefunction accumulates a geometric phase as it interacts with the laser field, mapping its coherence into the emission of high-order harmonics.
- Ayelet J. Uzan-Narovlansky
- , Lior Faeyrman
- & Nirit Dudovich
-
Article |
Giant magnetocaloric effect in spin supersolid candidate Na2BaCo(PO4)2
Evidence for a quantum magnetic analogue of a supersolid appears in a recently synthesized antiferromagnet showing a strong magnetocaloric effect of the spin supersolid phase with potential for applications in sub-kelvin refrigeration.
- Junsen Xiang
- , Chuandi Zhang
- & Gang Su
-
News & Views |
Tailoring graphene for electronics beyond silicon
The integration of non-silicon semiconductors into systems on chips is needed for advanced power and sensing technologies. A semiconducting graphene ‘buffer’ layer grown on silicon carbide is a step on this path.
- Francesca Iacopi
- & Andrea C. Ferrari
-
Article |
Heat conductance of the quantum Hall bulk
We measure efficient heat conductance through the electrically insulating quantum Hall bulk and propose a theoretical model based on the role played by the localized states.
- Ron Aharon Melcer
- , Avigail Gil
- & Erez Berg
-
News & Views Forum |
2D materials ratchet up biorealism in computing
A transistor made from atomically thin materials mimics the way in which connections between neurons are strengthened by activity. Two perspectives reveal why physicists and neuroscientists share equal enthusiasm for this feat of engineering.
- Frank H. L. Koppens
- , James B. Aimone
- & Frances S. Chance
-
Article |
Quantum spin nematic phase in a square-lattice iridate
We establish a spin nematic phase in the square-lattice iridate Sr2IrO4 and find a complete breakdown of coherent magnon excitations at short-wavelength scales, suggesting a many-body quantum entanglement in the antiferromagnetic state.
- Hoon Kim
- , Jin-Kwang Kim
- & B. J. Kim
-
-
Article |
Evidence for chiral supercurrent in quantum Hall Josephson junctions
Ultra-narrow quantum Hall Josephson junctions defined in encapsulated graphene nanoribbons exhibit a chiral supercurrent, visible up to 8 T.
- Hadrien Vignaud
- , David Perconte
- & Benjamin Sacépé
-
News & Views |
Magnetic hopfion rings in new era for topology
A curious topological structure known as a hopfion ring has been induced in a magnetic material. The first of its kind in 3D, the ring is a tantalizing prospect for several branches of computing development.
- Hanu Arava
- & Charudatta M. Phatak
-
Article
| Open AccessImaging quantum oscillations and millitesla pseudomagnetic fields in graphene
Imaging of quantum oscillations in Bernal-stacked trilayer graphene with dual gates enables high-precision reconstruction of the highly tunable bands and reveals naturally occurring pseudomagnetic fields as low as 1 mT corresponding to graphene twisting by 1 millidegree.
- Haibiao Zhou
- , Nadav Auerbach
- & Eli Zeldov
-
Article
| Open AccessHopfion rings in a cubic chiral magnet
Transmission electron microscopy is used to observe three-dimensional topological solitons known as hopfions that in a chiral magnet are found to form rings around skyrmion strings, and a nucleation protocol for these rings is provided.
- Fengshan Zheng
- , Nikolai S. Kiselev
- & Rafal E. Dunin-Borkowski
-
Article |
Imaging inter-valley coherent order in magic-angle twisted trilayer graphene
Scanning tunnelling microscopy imaging of the correlated phases of magic-angle twisted trilayer graphene shows marked signatures of interaction-driven spatial symmetry breaking.
- Hyunjin Kim
- , Youngjoon Choi
- & Stevan Nadj-Perge
-
Article
| Open AccessKinetic magnetism in triangular moiré materials
Minimization of kinetic energy leads to ferromagnetic correlations between itinerant electrons in MoSe2/WS2 moiré lattices even in the absence of exchange interactions.
- L. Ciorciaro
- , T. Smoleński
- & A. İmamoğlu
-
Article |
Continuous symmetry breaking in a trapped-ion spin chain
A one-dimensional trapped-ion quantum simulator with up to 23 spins is used to demonstrate a continuous symmetry-breaking phase that relies on long-range interactions.
- Lei Feng
- , Or Katz
- & Christopher Monroe
-
News & Views |
Flat bands find another dimension for exotic physical phases
Experiments reveal flat bands in the relationship between the energy and the momentum of electrons in a 3D solid. Such behaviour is indicative of unusual physical phenomena, and has previously been seen only in 2D materials.
- Xingjiang Zhou
-
Article |
Three-dimensional flat bands in pyrochlore metal CaNi2
Angle-resolved photoemission spectroscopy of CaNi2 shows a band with vanishing dispersion across the full 3D Brillouin zone that is identified with the pyrochlore flat band as well as two additional flat bands that arise from multi-orbital interference of Ni d-electrons.
- Joshua P. Wakefield
- , Mingu Kang
- & Joseph G. Checkelsky
-
Article |
Dipolar quantum solids emerging in a Hubbard quantum simulator
The realization of dipolar quantum solids with an ultracold gas of magnetic atoms in an optical lattice ushers in quantum simulation of many-body systems with long-range anisotropic interactions.
- Lin Su
- , Alexander Douglas
- & Markus Greiner
-
Article |
Remarkable heat conduction mediated by non-equilibrium phonon polaritons
Measurements of thermal transport along 3C-SiC nanowires with and without a gold coating on the end(s) suggest that thermally excited surface phonon polaritons can be used in nanostructures to substantially enhance thermal conductivity.
- Zhiliang Pan
- , Guanyu Lu
- & Deyu Li
-
Article |
Cavity-mediated thermal control of metal-to-insulator transition in 1T-TaS2
Cavity-mediated thermal control of metal-to-insulator transition is achieved by embedding the charge density wave material 1T-TaS2 into cryogenic tunable terahertz cavities.
- Giacomo Jarc
- , Shahla Yasmin Mathengattil
- & Daniele Fausti
-
Article |
Orbital multiferroicity in pentalayer rhombohedral graphene
Orbital multiferroicity reported in pentalayer rhombohedral graphene features ferro-orbital-magnetism and ferro-valleytricity, both of which can be controlled by an electric field.
- Tonghang Han
- , Zhengguang Lu
- & Long Ju
-
News & Views |
The twisted material that splits the electron
Layers of a thin semiconductor material overlap in a particular pattern, giving rise to particle currents carrying a fraction of the charge of an electron — with potential for encoding quantum information.
- Cécile Repellin
-
News & Views |
Nickelates join the club of high-temperature superconductors
A nickel-based compound has shown evidence of a superconducting state at a temperature of 80 kelvin. The material bridges a gap between other nickelates and a notable class of superconductor containing copper.
- Matthias Hepting
Browse broader subjects
Browse narrower subjects
- Bose–Einstein condensates
- Electronic properties and materials
- Ferroelectrics and multiferroics
- Ferromagnetism
- Magnetic properties and materials
- Molecular electronics
- Phase transitions and critical phenomena
- Quantum fluids and solids
- Quantum Hall
- Semiconductors
- Spintronics
- Structure of solids and liquids
- Superconducting properties and materials
- Surfaces, interfaces and thin films
- Topological matter