Condensed-matter physics articles within Nature

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  • Article |

    Using a quantum annealing processor to study three-dimensional spin glasses demonstrates an accurate large-scale quantum simulation of critical dynamics and a scaling advantage over analogous classical methods for energy optimization.

    • Andrew D. King
    • , Jack Raymond
    •  & Mohammad H. Amin

  • Research Briefing |

    Quantum materials can host exotic phases of matter in which electrons form unusual collective states. Scientists have struggled to observe the quantization that these electronic states are expected to show, but this phenomenon has now been detected in heavy states at the surface of a superconducting quantum material.

  • Article |

    The build-up and dephasing of Floquet-–Bloch bands is visualized in both subcycle band-structure videography and quantum theory, revealing the interplay of strong-field intraband and interband excitations in a non-equilibrium Floquet picture.

    • S. Ito
    • , M. Schüler
    •  & R. Huber

  • News & Views |

    A molecular process called singlet fission might boost solar-cell efficiency, but the mechanism must first be determined. A technique that probes molecules undergoing this process finally reveals the excited states involved.

    • Andrew J. Musser
    •  & Hannah Stern

  • Article
    | Open Access

    A Dirac plasma in high-mobility graphene shows anomalous magnetotransport and giant magnetoresistance that reaches more than 100 per cent in a low magnetic field at room temperature.

    • Na Xin
    • , James Lourembam
    •  & Alexey I. Berdyugin

  • Article
    | Open Access

    Time- and angle-resolved photoemission spectroscopy is used to observe the primary step of singlet fission with orbital resolution indicating a charge-transfer mediated mechanism with a hybridization of states in the lowest bright singlet exciton.

    • Alexander Neef
    • , Samuel Beaulieu
    •  & Ralph Ernstorfer

  • Article
    | Open Access

    A single-element ferroelectric state is observed in a black phosphorus-like bismuth layer, in which the ordered charge transfer and the regular atom distortion between sublattices happen simultaneously and ferroelectric switching is further visualized experimentally.

    • Jian Gou
    • , Hua Bai
    •  & Andrew Thye Shen Wee

  • Article
    | Open Access

    By using millikelvin scanning tunnelling microscopy to study atomically flat terraces on U-terminated surfaces of the heavy-fermion superconductor URu2Si2, the two-dimensional heavy fermions are shown to form quantum-well states on the surface.

    • Edwin Herrera
    • , Isabel Guillamón
    •  & Hermann Suderow

  • News & Views |

    A hydrogen-rich compound has taken the lead in the race for a material that can conduct electricity with zero resistance at room temperature and ambient pressure — the conditions required for many technological applications.

    • ChangQing Jin
    •  & David Ceperley

  • Article
    | Open Access

    By analysing atomic-scale Pb–Pb Josephson junctions including magnetic atoms in a scanning tunnelling microscope, a new mechanism for diode behaviour is demonstrated, opening up new paths to tune their properties by means of single-atom manipulation.

    • Martina Trahms
    • , Larissa Melischek
    •  & Katharina J. Franke

  • Article |

    In optimally doped Nd0.8Sr0.2NiO2H epitaxial film, combined state-of-the-art experimental and theoretical approaches show abundant hydrogen with zero resistivity, and its critical role in superconductivity in epitaxial infinite-layer nickelates.

    • Xiang Ding
    • , Charles C. Tam
    •  & Liang Qiao

  • Article |

    Varying growth temperatures enables the tuning of the degree of disorder, which is fully described by the absence/presence of medium-range order and temperature-dependent densities of nanocrystallites, and electrical conductivity in amorphous monolayer carbon films.

    • Huifeng Tian
    • , Yinhang Ma
    •  & Lei Liu

  • Article |

    A two-dimensional dipolar XY model with a continuous spin-rotational symmetry is realized using a programmable Rydberg quantum simulator, complementing recent studies using the Rydberg-blockade mechanism to realize Ising-type interactions showing discrete spin rotation symmetry.

    • Cheng Chen
    • , Guillaume Bornet
    •  & Antoine Browaeys

  • News & Views |

    Two microscopy techniques have been merged into a tool for twisting ultrathin sheets of atoms relative to each other. The approach offers a new angle for studying the electronic properties of exotic layered materials.

    • Rebeca Ribeiro-Palau

  • Research Briefing |

    A system of ultracold rubidium atoms confined by two misaligned laser-beam arrays has been used to simulate remarkable structures called twisted-bilayer materials. The atomic technology exhibits phenomena such as superfluidity — the frictionless flow of atoms — typically observed in these materials.

  • Article |

    By using new on-chip terahertz spectroscopy techniques to measure the absorption spectra of a graphene microribbon as well as the energy waves close to charge neutrality, hydrodynamic collective excitations are observed.

    • Wenyu Zhao
    • , Shaoxin Wang
    •  & Feng Wang

  • Article |

    A quantum twisting microscope based on a unique van der Waals tip and capable of performing local interference experiments opens the way for new classes of experiments on quantum materials.

    • A. Inbar
    • , J. Birkbeck
    •  & S. Ilani

  • Article |

    A minimal artificial Kitaev chain can be realized by using two spin-polarized quantum dots in an InSb nanowire strongly coupled by both elastic co-tunnelling and crossed Andreev reflection.

    • Tom Dvir
    • , Guanzhong Wang
    •  & Leo P. Kouwenhoven

  • News & Views |

    When a semiconductor material called black phosphorus is hit with intense laser light, the behaviour of its electrons is found to change. The discovery opens a route to time-dependent engineering of exotic electronic phases in solids.

    • Alberto Crepaldi

  • Article |

    In black phosphorus, a model semiconductor, analysis of time and angle-resolved photoemission spectroscopy measurements demonstrates a strong light-induced band renormalization with light polarization dependence, suggesting pseudospin-selective Floquet band engineering.

    • Shaohua Zhou
    • , Changhua Bao
    •  & Shuyun Zhou

  • Article |

    An experiment is described in which the conversion of a single photon in a multimode cavity into a shower of low-energy photons was attempted, but failed owing to many-body localization and violation of Fermi’s golden rule.

    • Nitish Mehta
    • , Roman Kuzmin
    •  & Vladimir E. Manucharyan

  • Article
    | Open Access

    The authors report observation of tunnelling magnetoresistance in an all-antiferromagnetic tunnel junction consisting of Mn3Sn/MgO/Mn3Sn, laying the foundation for the development of ultrafast and efficient spintronic devices using antiferromagnets.

    • Xianzhe Chen
    • , Tomoya Higo
    •  & Satoru Nakatsuji

  • Research Briefing |

    A phenomenon known as unconventional superconductivity allows electric current to flow without resistance at unusually high temperatures, but the necessary pairing of charge carriers is poorly understood in modern physics. Using an optical microscope, an experimental demonstration of such a pairing has been achieved in a simple system.

  • Article |

    The direct observation of in-plane charged domain walls in BiFeO3 ferroelectric films a few nanometres thick, their deterministic creation, manipulation and annihilation by applied voltage, as well the demonstration of their memristive functionality is reported.

    • Zhongran Liu
    • , Han Wang
    •  & He Tian

  • Article |

    A new exchange-bias effect between two different antiferromagnetic layers enables the fabrication of all-antiferromagnetic structures that have a large room-temperature tunnelling magnetoresistance and potential applications for ultrafast memory technologies.

    • Peixin Qin
    • , Han Yan
    •  & Zhiqi Liu

  • Article
    | Open Access

    Nanoscale magnetic fluctuations are spatiotemporally resolved beyond conventional resolution limits using coherent correlation imaging, in which frames in Fourier space are recorded and analysed using an iterative hierarchical clustering algorithm.

    • Christopher Klose
    • , Felix Büttner
    •  & Bastian Pfau

  • Article |

    Placing monolayer tungsten diselenide on Bernal-stacked bilayer graphene promotes enhanced superconductivity, indicating that proximity-induced spin–orbit coupling plays a key role in stabilizing the pairing, paving the way for engineering tunable, ultra-clean graphene-based superconductors.

    • Yiran Zhang
    • , Robert Polski
    •  & Stevan Nadj-Perge

  • Article |

    The authors measure elastic p-wave interaction energies in pairs of fermionic atoms occupying the lowest two orbitals of an optical lattice; isolation of individual pairs of atoms protects against three-body recombination, enabling a theoretical maximum of interaction energy to be achieved.

    • Vijin Venu
    • , Peihang Xu
    •  & Joseph H. Thywissen

  • Article |

    The authors show a hysteretic behaviour of superconductivity as a function of electric field in bilayer Td-MoTe2, representing observations of coupled ferroelectricity and superconductivity.

    • Apoorv Jindal
    • , Amartyajyoti Saha
    •  & Daniel A. Rhodes

  • News & Views |

    Ferroelectricity has been found in a superconducting compound. Strong coupling between these two properties enables ferroelectric control of the superconductivity, which could prove useful for quantum devices.

    • Kenji Yasuda

  • Review Article |

    Recent key developments in the exploration of kagome materials are reviewed, including fundamental concepts of a kagome lattice, realizations of Chern and Weyl topological magnetism, flat-band many-body correlations, and unconventional charge-density waves and superconductivity.

    • Jia-Xin Yin
    • , Biao Lian
    •  & M. Zahid Hasan

  • Article |

    Optomechanical lattices in one and two dimensions with exceptionally low disorder are realized, showing how the optomechanical interaction can be exploited for direct measurements of the Hamiltonian, beyond the tight-binding approximation.

    • Amir Youssefi
    • , Shingo Kono
    •  & Tobias J. Kippenberg

  • News & Views |

    A versatile nanowire system has enabled the hunt for particles that could be useful for quantum computers. The platform can be probed with two techniques simultaneously — minimizing the possibility of false-positive signals.

    • Manohar Kumar
    •  & Chuan Li

  • Article |

    Valentini et al. devise a method through which they can perform both tunnelling spectroscopy and Coulomb blockade spectroscopy on the same hybrid nanowire island to reduce ambiguities in the detection of Majorana.

    • Marco Valentini
    • , Maksim Borovkov
    •  & Georgios Katsaros

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