Condensed-matter physics articles within Nature Communications

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  • Article
    | Open Access

    Here Pantazopoulos, Feist, García-Vidal, and Kamra explore the combination spin, phonon and photon coupling in a system of magnetic nanoparticles, and find that it leads to an emergent spin-spin interaction. This interaction is long-range and leads to an unconventional form of magnetism that can exhibit strong magnetization at temperatures very close to the critical temperature.

    • Petros Andreas Pantazopoulos
    • , Johannes Feist
    •  & Akashdeep Kamra

  • Article
    | Open Access

    The coupling between topological electronic properties and magnetic order offers a promising route for magnetoelectric control with great potential for both applications and fundamental physics. Here, Susilo et al demonstrate the rich tunability of magnetic properties in nodal-line magnetic semiconductor Mn3Si2Te6 using pressure as control knob.

    • Resta A. Susilo
    • , Chang Il Kwon
    •  & Jun Sung Kim

  • Article
    | Open Access

    The authors theoretically study the pressure dependence of the phase diagram of the nickelate PrNiO2 with and without Sr doping. At high pressure, they find that the superconducting dome is significantly enhanced in both Tc and doping-range of superconductivity compared with ambient pressure, with a maximal Tc of 100 K around 100 GPa in absence of external doping.

    • Simone Di Cataldo
    • , Paul Worm
    •  & Karsten Held

  • Article
    | Open Access

    Authors predict polar Bloch points with negative capacitance in tensile-strained ultrathin ferroelectric PbTiO3 film by phase-field simulations, observing their polarization structures by scanning transmission electron microscopic imaging.

    • Yu-Jia Wang
    • , Yan-Peng Feng
    •  & Xiu-Liang Ma

  • Article
    | Open Access

    Previous work proposed the Berry curvature dipole as the mechanism of the nonlinear Hall effect. Lee et al. establish the sign-changing Berry curvature hot spots from spin-orbit split bands as the origin of the Berry curvature dipole and link it to the nonlinear Hall effect in the topological semimetal NbIrTe4.

    • Ji-Eun Lee
    • , Aifeng Wang
    •  & Hyejin Ryu

  • Article
    | Open Access

    The authors study a YbCoIn5/CeCoIn5/YbRhIn5 heterostructure. Using non-reciprocity in the second harmonic transport response, they demonstrate the existence of a specific form of finite-momentum pairing called a helical superconducting state, where the phase of the order parameter is spontaneously spatially modulated.

    • T. Asaba
    • , M. Naritsuka
    •  & Y. Matsuda

  • Article
    | Open Access

    Here, the authors report the observation of an interlayer plasmon polaron in heterostructures composed of graphene and monolayer WS2. This is manifested in the ARPES spectra as a strong quasiparticle peak accompanied by several carrier density-dependent shake-off replicas around the WS2 conduction band minimum.

    • Søren Ulstrup
    • , Yann in ’t Veld
    •  & Jyoti Katoch

  • Article
    | Open Access

    Low-dimensional ferroelectric systems are predicted to have topologically nontrivial polar structures, such as vortices or skyrmions. Here authors present atomic-scale 3D topological polar structures in BaTiO3 nanoparticles using atomic electron tomography and revealed their size-dependent transitions.

    • Chaehwa Jeong
    • , Juhyeok Lee
    •  & Yongsoo Yang

  • Article
    | Open Access

    Stabilizing non-trivial magnetic spin textures at room temperature remains challenging. Here, the authors propose introducing magnetic atoms into the van der Waals gap of 2D magnets Fe3GaTe2 to stabilize the magnetic spin textures beyond skyrmion.

    • Hongrui Zhang
    • , Yu-Tsun Shao
    •  & Ramamoorthy Ramesh

  • Article
    | Open Access

    Lightweight and flexible thin crystalline silicon solar cells have huge market potential but remain relatively unexplored. Here, authors present a thin silicon structure with reinforced ring to prepare free-standing 4.7-μm 4-inch silicon wafers, achieving efficiency of 20.33% for 28-μm solar cells.

    • Taojian Wu
    • , Zhaolang Liu
    •  & Wenzhong Shen

  • Article
    | Open Access

    Polarization reversal dynamics in sliding ferroelectrics is important for the application in slidetronics. Here, the authors observe the interlayer directional sliding induced polarization switching with simultaneous hysteresis response in γ-InSe:Y.

    • Fengrui Sui
    • , Haoyang Li
    •  & Chungang Duan

  • Article
    | Open Access

    Previous measurements of FeSe0.45Te0.55 found one-dimensional (1D) defects that were interpretated as domain walls hosting propagating Majorana topological modes. Here, the authors reveal that these 1D defects correspond to sub-surface debris and show that the filling of the superconducting gap on these defects is topologically trivial.

    • A. Mesaros
    • , G. D. Gu
    •  & F. Massee

  • Article
    | Open Access

    Sublattice symmetry has long been synonymous with chiral symmetry when it comes to topological classification. Here, the authors challenge this notion by systematically investigating sublattice symmetry and revealing its spatial nature with a precise description in terms of symmetry algebra and representation.

    • Rong Xiao
    •  & Y. X. Zhao

  • Article
    | Open Access

    Bose-Einstein condensates (BEC) of ultracold atoms serve as low-entropy sources for a multitude of quantum-science applications. Here, the authors realize a non-ground-state caesium BEC with tunable interactions and tunable loss, opening up new possibilities for polaron and impurity physics.

    • Milena Horvath
    • , Sudipta Dhar
    •  & Hanns-Christoph Nägerl

  • Article
    | Open Access

    Spin-momentum locking is a fundamental property of condensed matter systems. Here, the authors evidence parallel Weyl spin-momentum locking of multifold fermions in the chiral topological semimetal PtGa.

    • Jonas A. Krieger
    • , Samuel Stolz
    •  & Niels B. M. Schröter

  • Article
    | Open Access

    Chiral antiferromagnets, such as Mn3Pt, host a variety of transport phenomena arising due to the chiral arrangement of the spins. Herein, the authors find two contributions to the anomalous hall effect in Mn3Pt, and through comparison with other chiral antiferromagnets develop a universal scaling law for the anomalous hall effect in chiral antiferromagnets.

    • Shijie Xu
    • , Bingqian Dai
    •  & Weisheng Zhao

  • Article
    | Open Access

    Previous studies of the effects of strain on charge density waves have mostly focused on uniaxial strain. Here the authors use a biaxial-strain device to demonstrate switching of the charge density wave orientation, as well as a strong linear increase of the transition temperature while the gap seems to saturate.

    • A. Gallo–Frantz
    • , V. L. R. Jacques
    •  & D. Le Bolloc’h

  • Article
    | Open Access

    The study of defects and boundaries in the context of conformal field theory is important but challenging in dimensions higher than two. Here the authors use the recently developed fuzzy sphere regularization approach to perform non-perturbative analysis of defect conformal field theory in 3D

    • Liangdong Hu
    • , Yin-Chen He
    •  & W. Zhu

  • Article
    | Open Access

    Photonic time crystal refers to a material whose dielectric properties oscillate in time. Here the authors theoretically show such behaviour in the excitonic insulator candidate Ta2NiSe5 under optical excitation and use it to explain the enhanced THz reflectivity recently observed in pump-probe experiments

    • Marios H. Michael
    • , Sheikh Rubaiat Ul Haque
    •  & Eugene Demler

  • Article
    | Open Access

    In most materials, the hall conductivity has a scaling to the longitudinal resistance that varies between linear and quadratic. Here, Zhang et al demonstrate a hall conductivity proportional to the fifth power of the longitudinal conductivity in Mn3Si2Te6, which they attribute to enhanced force on charge carriers due to chiral orbital currents.

    • Yu Zhang
    • , Yifei Ni
    •  & Gang Cao

  • Article
    | Open Access

    The electronic correlation-driven Mott metal-insulator transition has been predicted in a 2D metal-organic framework with a kagome structure. Here the authors synthesize such a system in experiment and demonstrate an electrostatically controlled Mott transition.

    • Benjamin Lowe
    • , Bernard Field
    •  & Agustin Schiffrin

  • Article
    | Open Access

    Manipulating the electronic properties of topological semimetals is a central goal of modern condensed matter physics research. Here, the authors demonstrate how a high-entropy engineering approach allows for the tuning of the crystal structure and the electronic states in a Dirac semimetal.

    • Antu Laha
    • , Suguru Yoshida
    •  & Zhiqiang Mao

  • Article
    | Open Access

    Phase singularities are intimately related to orbital angular momentum. Direct local imaging of orbital angular momentum effects at the nanoscale remains challenging. Here, the authors demonstrate via scanning tunnelling microscopy that inter-orbital angular momentum scatterings induced by asymmetric potentials can modulate the phase singularities and induce single-wavefront dislocations.

    • Yi-Wen Liu
    • , Yu-Chen Zhuang
    •  & Lin He

  • Article
    | Open Access

    Point defects in 2D semiconductors have potential for quantum computing applications, but their controlled design and synthesis remains challenging. Here, the authors identify and fabricate a promising quantum defect in 2D WS2 via high-throughput computational screening and scanning tunnelling microscopy.

    • John C. Thomas
    • , Wei Chen
    •  & Geoffroy Hautier

  • Article
    | Open Access

    Quantum annealing is usually discussed as a means of finding an optimal solution for a problem where there are many local minima, such as the travelling salesman. Here, Zhao et al present an intriguing example of quantum annealing in the case of the frustrated magnet α-CoV2O6, where a transverse magnetic field triggers the quantum annealing process.

    • Yuqian Zhao
    • , Zhaohua Ma
    •  & Yuesheng Li

  • Article
    | Open Access

    Recently, excitons with unconventional properties were reported in a van der Waals antiferromagnet NiPS3. Here, using resonant inelastic x-ray scattering, the authors show that the formation of these excitons is primarily driven by Hund’s coupling and that they propagate similarly to two-magnon excitations.

    • W. He
    • , Y. Shen
    •  & M. P. M. Dean

  • Article
    | Open Access

    The thermal Hall effect is a novel probe of neutral excitations in insulators; however, the mechanism behind one type of neutral excitations – phonons – is still unclear. Here the authors observe a planar thermal Hall effect in the Kitaev candidate material Na2Co2TeO6 and proposed that it is generated by phonons.

    • Lu Chen
    • , Étienne Lefrançois
    •  & Louis Taillefer

  • Article
    | Open Access

    Thin crystals grown on rigid spherical templates of increasing curvature exhibit increased protrusions. Here, the authors demonstrate the opposite curvature effect on the morphology of molecularly thin crystals grown within elastic fluid membranes, like those of biological cells.

    • Hao Wan
    • , Geunwoong Jeon
    •  & Maria M. Santore

  • Article
    | Open Access

    Large-scale eDMFT computation reveals that FeO undergoes a gradual orbitally selective insulator-metal transition across the extreme conditions of Earth’s interior, with implications for compositions and conductivity of the core-mantle boundary region.

    • Wai-Ga D. Ho
    • , Peng Zhang
    •  & Vasilije V. Dobrosavljevic

  • Article
    | Open Access

    The authors experimentally study a chain of superconducting islands (SI) and quantum dots (QD), where a Bogoliubov quasiparticle occupies each SI. They demonstrate correlations between the quasiparticles in each SI mediated by a single spin on the QD, known as an “over-screened" doublet state of the QD.

    • Juan Carlos Estrada Saldaña
    • , Alexandros Vekris
    •  & Jesper Nygård

  • Article
    | Open Access

    While monolayer of 1T-TaS2 is considered to be a Mott insulator, the nature of the bulk insulating state is debated. Here the authors introduce a ladder-type structures with fractional misalignment of adjacent layers, showing that it becomes a Mott insulator due to decoupling between the layers.

    • Yihao Wang
    • , Zhihao Li
    •  & Liang Cao

  • Article
    | Open Access

    The authors characterize the phonon modes at the FeSe/SrTiO3 interface with atomically resolved electron energy loss spectroscopy and correlate them with accurate atomic structure in an electron microscope. They find several phonon modes highly localized at the interface, one of which engages in strong interactions with the electrons in FeSe.

    • Ruochen Shi
    • , Qize Li
    •  & Peng Gao

  • Article
    | Open Access

    Measuring quantum entanglement remains a demanding task. The authors introduce two functions to quantify entanglement induced by fermionic or bosonic statistics, in transport experiments. Both functions, in theory and experiment, are remarkably resilient against the nonuniversal effects of interactions.

    • Gu Zhang
    • , Changki Hong
    •  & Yuval Gefen

  • Article
    | Open Access

    MnBi2Te4 is an antiferromagnetic topological insulator. This combination of magnetic ordering and topological properties has resulted in intense interest, however, like many van der Waals materials, experimental results are hampered by fabrication difficulties. Here, Li, Wang, Lian et al. show that the fabrication process itself can result in mismatched thickness dependence of magneto-transport measurements. ‘

    • Yaoxin Li
    • , Yongchao Wang
    •  & Chang Liu

  • Article
    | Open Access

    In addition to its low-field superconducting state, UTe2 features a re-entrant superconducting state when high magnetic fields are applied at a particular range of angles. Here, the authors demonstrate that the high-field re-entrant superconducting state survives even when the low-field superconducting state is destroyed by disorder.

    • Corey E. Frank
    • , Sylvia K. Lewin
    •  & Nicholas P. Butch

  • Article
    | Open Access

    The authors study monolayer FeSe via scanning tunneling microscopy and simultaneous micron-scale-probe-based transport. They observe distinct superconducting phases in domains and on boundaries between domains, with different superconducting gaps and pairing temperatures.

    • Dapeng Zhao
    • , Wenqiang Cui
    •  & Qi-Kun Xue

  • Article
    | Open Access

    Many volatile elements are depleted in the bulk silicate Earth. Here, the authors found that these volatile elements tend to react with Fe under pressure and may be sequestered within Earth’s core by forming substitutional Fe alloys.

    • Yifan Tian
    • , Peiyu Zhang
    •  & Hanyu Liu

  • Article
    | Open Access

    Bound states in continuum have attracted attention in various platforms, and recently condensation of bound states in continuum polariton modes was demonstrated at low temperatures. Here the authors report the observation of such a state in a periodic air-hole perovskite-based photonic crystal at room temperature.

    • Xianxin Wu
    • , Shuai Zhang
    •  & Xinfeng Liu

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