Condensed-matter physics articles within Nature Communications

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  • Article
    | Open Access

    The authors show that dipolar condensates are prevalent in bosonic systems due to a self-proximity effect. Furthermore, they propose a new type of Josephson effect called dipolar Josephson effect, where a supercurrent of dipoles happens in the absence of particle flow.

    • Wenhui Xu
    • , Chenwei Lv
    •  & Qi Zhou

  • Article
    | Open Access

    Quantum spin Hall materials hold great potential for future nanoelectronics. Here, authors synthesize a potential host system — monolayer ZrTe5 — and demonstrate it possesses a band gap wide enough for potential room-temperature applications.

    • Yong-Jie Xu
    • , Guohua Cao
    •  & Shao-Chun Li

  • Article
    | Open Access

    CrSBr is a van der Waals layered antiferromagnet. Unlike many other van der Waals magnetic materials it is air stable, and in addition hosts a rich array of magneto-optical responses. Here, Tabataba-Vakili et al demonstrate that the magnetic and optical response of CrSBr is sensitive to gating, allowing electrical control of the magneto-optical properties.

    • Farsane Tabataba-Vakili
    • , Huy P. G. Nguyen
    •  & Alexander Högele

  • Article
    | Open Access

    Hydrogen-doping driven metal to ferroelectric phase transition in a complex oxide NdNiO3 is demonstrated. Transient negative differential capacitance and implementation of polarization decay into neural network for learning are then presented.

    • Yifan Yuan
    • , Michele Kotiuga
    •  & Shriram Ramanathan

  • Article
    | Open Access

    Si color centers offer promising quantum technology applications, but their interaction with electric fields has not been explored. Here the authors report electrical manipulation of telecom emitters in Si by fabricating lateral diodes with an integrated ensemble of G centers in commercial Si on insulator wafer.

    • Aaron M. Day
    • , Madison Sutula
    •  & Evelyn L. Hu

  • Article
    | Open Access

    Topological semimetals offer the potential for new-generation spintronic devices. Here, the authors demonstrate a large out-of-plane damping-like spin–orbit torque efficiency in a heterostructure based on the Weyl semimetal TaIrTe4.

    • Lakhan Bainsla
    • , Bing Zhao
    •  & Saroj P. Dash

  • Article
    | Open Access

    The authors reveal a link between the quantum metric and the dielectric constant of insulators, determining the geometric capacitance of insulators and revealing the intrinsic delocalization of electrons in the lattice.

    • Ilia Komissarov
    • , Tobias Holder
    •  & Raquel Queiroz

  • Article
    | Open Access

    The authors report the measurement of the Little-Parks effect in the unconventional superconductor candidate 4Hb-TaS2. They find a π-shift in the transition-temperature oscillations and an ehancement of Tc as a function of the out-of-plane field when a constant in-plane field is applied, consistent with a multi-component order parameter.

    • Avior Almoalem
    • , Irena Feldman
    •  & Amit Kanigel

  • Article
    | Open Access

    2D semiconductors may offer a platform for future electronics, but the wafer-scale fabrication of high-performance 2D transistors remains challenging. Here, the authors report a universal all-stacking method to fabricate wafer-scale 2D electronic devices with van der Waals contacts, based on epitaxial metallic electrodes grown on fluorophlogopite mica.

    • Xiaodong Zhang
    • , Chenxi Huang
    •  & Hualing Zeng

  • Article
    | Open Access

    Strange metal behaviour of high-Tc superconductors, characterised by unconventional electrical and thermodynamic properties, still poses challenges for theory. Smit et al. report experimental features in the self-energy of a strange metal that are consistent with predictions by holographic theoretical methods.

    • S. Smit
    • , E. Mauri
    •  & M. S. Golden

  • Article
    | Open Access

    Extreme magnetoresistance (XMR) is the name assigned to the large and non-saturating magnetoresistance that occurs in some metals and semi-metals. In this work, the authors demonstrate the first material, PtSn4, in which XMR can be switched off by changing the direction of the magnetic field.

    • J. Diaz
    • , K. Wang
    •  & P. J. W. Moll

  • Article
    | Open Access

    The transport behavior of high-entropy alloys (HEAs) remains unclear. Here, the authors explore the fundamentals of low-wear and high-conductivity refractory HEAs, examining the cocktail effect in conductivity, and highlight its potential applications in enhancing atomic-scale image resolution.

    • Cheng-Hsien Yeh
    • , Wen-Dung Hsu
    •  & Chuan-Feng Shih

  • Article
    | Open Access

    The authors observe THz emission from Ni/Pt heterostructure due to long-range ballistic orbital transport. The velocity of orbital current can be optically tuned by laser fluence, opening the avenue for future optorbitronic devices.

    • Sobhan Subhra Mishra
    • , James Lourembam
    •  & Ranjan Singh

  • Article
    | Open Access

    By resonant pumping the organic cation in 2D perovskite, Fu et al. report the electronic and mechanical couplings between the organic and inorganic sublattices, evidenced by the reduced bandgap and modified lattice degree of freedom within the inorganic sublattice, and slow heat transfer process.

    • Jianhui Fu
    • , Tieyuan Bian
    •  & Tze Chien Sum

  • Article
    | Open Access

    The authors report experimental evidence of phonon Stark effect in 2H-MoS2 bilayers. A Stark phonon appears as the interlayer excitons are tuned to resonate with the LA phonon emission line, and shows a linear energy shift upon application of an out-of-plane electric field.

    • Zhiheng Huang
    • , Yunfei Bai
    •  & Guangyu Zhang

  • Article
    | Open Access

    According to conventional wisdom, angle-resolved photoemission spectroscopy (ARPES) can only measure the magnitude of the superconducting gap but not its phase. Here, the authors propose a new method to directly detect the superconducting gap phase using ARPES and validate this technique on a cuprate superconductor.

    • Qiang Gao
    • , Jin Mo Bok
    •  & X. J. Zhou

  • Article
    | Open Access

    There are now several van der Waals magnets that have been shown to host skyrmions, however, these are typically hampered by a low Curie temperature, restricting the temperature at which the skyrmions can exist. Here, Zhang, Jiang, Jiang and coauthors find a skyrmion lattice in the van der Waals magnet Fe3 − xGaTe2 above room temperature and demonstrate the critical role of symmetry breaking in crystal lattice in the origin of these skyrmions.

    • Chenhui Zhang
    • , Ze Jiang
    •  & Hyunsoo Yang

  • Article
    | Open Access

    Switchable structural and physical bistability in ferroelectric materials can be achieved as result of molecular orbital breaking. Here, the authors describe the photo-mediated bistability in organosilicon Schiff base ferroelectric crystals for the modulation of dielectric, second-harmonic generation, and ferroelectric polarization and showing good in vitro biocompatibility.

    • Zhu-Xiao Gu
    • , Nan Zhang
    •  & Han-Yue Zhang

  • Article
    | Open Access

    Toggle switching refers to the switching of magnetization induced by a train of ultrashort laser pulses. The high speed make such switching in extremely promising for devices, however, the underlying toggle switching mechanism in metals is due to heating, and thus has a downside of dissipation. Here, Zalewski et al demonstrate ultrafast ‘cold’ toggle switching, with a mechanism that does not rely on heating in dielectric Cobalt doped Yittrium Iron Garnet.

    • T. Zalewski
    • , A. Maziewski
    •  & A. Stupakiewicz

  • Article
    | Open Access

    The authors study tunneling junctions in rhombohedral MoS2 bilayers and correlate their performance with the local domain layout. They show that the switching behavior in sliding ferroelectrics is strongly dependent on the pre-existing domain structure.

    • Yunze Gao
    • , Astrid Weston
    •  & Roman Gorbachev

  • Article
    | Open Access

    The authors study the [Nb/V/Ta] superconducting artificial superlattice, known to support a superconducting diode effect, by pulsed THz spectroscopy and simultaneous transport. They found a non-monotonic switching between the superconducting and normal state, which can be explained if the THz-driven vortex depinning determines the critical current.

    • Fumiya Sekiguchi
    • , Hideki Narita
    •  & Yoshihiko Kanemitsu

  • Article
    | Open Access

    The strong connection between the dynamics of a physical system and its Hamiltonian’s spectrum has scarcely been applied in the non-Hermitian case. Here, the authors use a photonic quantum walk to confirm and expand previous theoretical analyses connecting self-acceleration dynamics with non-trivial point-gap topology.

    • Peng Xue
    • , Quan Lin
    •  & Wei Yi

  • Article
    | Open Access

    Topological flat bands offer a solid-state platform for studying the interplay between topology and electron correlations. Here, the authors demonstrate that a prototypical 3D Dirac material can host topological flat bands under magnetic fields due to polar-distortion-assisted Rashba splitting.

    • Dong Xing
    • , Bingbing Tong
    •  & Cheng-Long Zhang

  • Article
    | Open Access

    The authors study the intrinsic superconducting diode effect (SDE) in a single Josephson junction consisting of a InGaAs/InAs/InGaAs quantum well as the weak link, and an Al film as the superconductor. They find a correspondence between SDE and an offset in the relationship between critical current and the difference in phase of the superconducting order parameter across the junction.

    • S. Reinhardt
    • , T. Ascherl
    •  & N. Paradiso

  • Article
    | Open Access

    Recently, superconductivity near 80 K was observed in La3Ni2O7 under high pressure, but the mechanism is debated. Here the authors report angle-resolved photoemission spectroscopy measurements under ambient pressure, revealing flat bands with strong electronic correlations that could be linked to superconductivity.

    • Jiangang Yang
    • , Hualei Sun
    •  & X. J. Zhou

  • Article
    | Open Access

    Here, the authors discover the ground and excited state interlayer excitons in bi- and tri-layer 2H-MoSe2 crystals which exhibit electric-field-driven hybridisation with the intralayer A excitons, showing distinct spin, layer and valley characteristics.

    • Shun Feng
    • , Aidan J. Campbell
    •  & Brian D. Gerardot

  • Article
    | Open Access

    Frustrated magnetic systems typically have multiple ground state configurations. While such multistability is common in amorphous materials, periodic mechanical systems have long range elastic interactions that tend to lead to a long-range ordered ground state. Herein, Sirote-Katz, Shohat et al. introduce periodic mechanical systems that have many disordered metastable states.

    • Chaviva Sirote-Katz
    • , Dor Shohat
    •  & Yair Shokef

  • Article
    | Open Access

    The hierarchy of symmetry breaking in magic-angle twisted bilayer graphene remains a topic of intense fundamental study. Here, the authors determine the spin polarization of symmetry-broken quantum Hall states and Chern insulators in MATBG using a twist-decoupled graphene probe.

    • Jesse C. Hoke
    • , Yifan Li
    •  & Benjamin E. Feldman

  • Article
    | Open Access

    Helimagnetic materials host a twisted magnetic texture, realizing screws, cycloids, and cones. While helimagnets are common in three dimensional materials, layered van der Waals helimagnets are exceedingly rare. Here, Akatsuka et al. demonstrate conical ordering in the easily cleavable magnet DyTe3.

    • Shun Akatsuka
    • , Sebastian Esser
    •  & Max Hirschberger

  • Article
    | Open Access

    Néel spin-orbit torques arise due to charge currents in some antiferromagnets, and have sparked interest as a possible pathway for achieving electrical control of antiferromagnetic order. While the driving of antiferromagnetic order by Néel spin-orbit torques is now experimentally well established, the inverse process, where magnetic excitations in an antiferromagnetic drive a charge current is not reported. Here Huang, Liao, Qiu, and coauthors observe this inverse process in an Mn2Au thin film.

    • Lin Huang
    • , Liyang Liao
    •  & Cheng Song

  • Article
    | Open Access

    Extreme magnetoresistance is characterized by a large and non-saturating magnetoresistance. Typically, it is observed in materials with compensated bandstructures, however, here, Christensen et al demonstrate a large and non-saturating magnetoresistance in a γAl2O3/SrTiO3 heterostructure, which is related to disorder, rather than the materials bandstructure.

    • D. V. Christensen
    • , T. S. Steegemans
    •  & N. Pryds

  • Article
    | Open Access

    Control of correlated excitonic states is a key goal of modern optoelectronic physics. Here, the authors demonstrate filling- and field-tunable exciton valley-pseudospin orders in a moiré heterostructure.

    • Richen Xiong
    • , Samuel L. Brantly
    •  & Chenhao Jin

  • Article
    | Open Access

    The band topology of twisted 2D systems is a key factor behind their fascinating physics. Here, the authors demonstrate the role of polarization in driving the band topology evolution in twisted transition metal dichalcogenide homobilayers.

    • Xiao-Wei Zhang
    • , Chong Wang
    •  & Di Xiao

  • Article
    | Open Access

    Existing proposals of axion insulators are limited to spin-1/2 systems. Here the authors put forward a concept of a high spin axion insulator with several peculiar properties, such as the absence of gapless surface states and tunability of the axion field by an external magnetic field.

    • Shuai Li
    • , Ming Gong
    •  & X. C. Xie

  • Article
    | Open Access

    The authors observe multiferroicity in a single-layer non van der Waals material, CuCrSe2. The coexistence of room-temperature ferroelectricity and ferromagnetism up to 120 K is corroborated by a set of comprehensive experimental techniques.

    • Zhenyu Sun
    • , Yueqi Su
    •  & Baojie Feng

  • Article
    | Open Access

    Antiferromagnetic spintronics offer high speed operations, and reduced issues with stray fields compared to ferromagnetic systems, however, antiferromagnets are typically more challenging to manipulate electrically. Here, Yang, Kim, and coauthors demonstrate electrical control of magnon dispersion and frequency in an α-Fe2O3/Pt heterostructure.

    • Dongsheng Yang
    • , Taeheon Kim
    •  & Hyunsoo Yang

  • Article
    | Open Access

    Extending magnetic nanostructures into three dimensions offers a vast increase in potential functionalities, but this typically comes at the expense of ease of fabrication and measurement. Here, Dion et al. demonstrate an approach to creating three dimensional magnetic nanostructures while retaining easy fabrication and readout of established two dimensional approaches.

    • Troy Dion
    • , Kilian D. Stenning
    •  & Jack C. Gartside

  • Article
    | Open Access

    Here, the authors demonstrate a wafer-scale, low-temperature process using atomic layer deposition, for the synthesis of uniform, conformal amorphous boron nitride (aBN) thin films. They further fabricate aBN-encapsulated monolayer MoS2 field-effect transistors.

    • Cindy Y. Chen
    • , Zheng Sun
    •  & Joshua A. Robinson

  • 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

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