Magnetic properties and materials articles within Nature Physics

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  • Article |

    A Dirac quantum spin liquid phase is predicted to have a continuum of fractionalized spinon excitations with a Dirac cone dispersion. A spin continuum consistent with this picture has now been observed in neutron scattering measurements.

    • Zhenyuan Zeng
    • , Chengkang Zhou
    •  & Shiliang Li

  • Article |

    Frequency combs, which are important for applications in precision spectroscopy, depend on material nonlinearities for their function, which can be hard to engineer. Now an approach combining magnons and exceptional points is shown to be effective.

    • Congyi Wang
    • , Jinwei Rao
    •  & Wei Lu

  • News & Views |

    Excitation of magnons — quanta of spin-waves — in an antiferromagnet can be used for high-speed data processing. The addition and subtraction of two such modes opens up possibilities for magnon-based information transfer in the terahertz spectral region.

    • Brijesh Singh Mehra
    •  & Dhanvir Singh Rana

  • News & Views |

    Some cerium and uranium compounds exhibit unusual transport properties due to localized electron states. Recent experiments demonstrate that quantum interference on frustrated lattices provides an alternative route to this behaviour.

    • William R. Meier

  • News & Views |

    It has long been predicted that spin-1/2 antiferromagnets on the kagome lattice should feature a series of plateaus in the change of its magnetization under an applied magnetic field. A quantum plateau of this kind has now been observed experimentally.

    • Gia-Wei Chern

  • News & Views |

    Some exotic metals exhibit competing electronic states that can be influenced by small perturbations. Now, a study of a kagome superconductor shows that this competition is exquisitely sensitive to weak strain fields, providing insight into its anomalous electronic properties.

    • Stephen D. Wilson

  • Article |

    Understanding the mechanism by which magnons—the quanta of spin waves—propagate is important for developing practical devices. Now it is shown that long-range dipole–dipole interactions mediate the propagation in a van der Waals antiferromagnet.

    • Yue Sun
    • , Fanhao Meng
    •  & Joseph Orenstein

  • News & Views |

    Multiple mechanisms can create electrons with reduced kinetic energy in solids. Combining these mechanisms now appears as a promising route to enhancing quantum effects in flat band materials.

    • Priscila F. S. Rosa
    •  & Filip Ronning

  • News & Views |

    Phonons do not carry spin or charge, but they can couple to an external magnetic field and cause a sizable transverse thermal gradient. Experiments suggest that phonon handedness is a widespread effect in magnetic insulators with impurities.

    • Valentina Martelli

  • News & Views |

    Electronic transport measurements of the anomalous Hall effect can probe properties of a frustrated kagome spin ice that are hidden from conventional thermodynamic and magnetic probes.

    • Enke Liu

  • Article |

    Inducing coherent interactions between distinct magnon modes—collective excitations of magnetic order—has been challenging. A canted antiferromagnet has demonstrated coherent magnon upconversion induced by terahertz laser pulses.

    • Zhuquan Zhang
    • , Frank Y. Gao
    •  & Keith A. Nelson

  • Comment |

    Kenneth Wilson worked on the renormalization group during the Cold War, when communication between scientists in the Soviet Union and in the West was restricted. Nevertheless, Soviet physicists had a strong influence on Wilson’s work.

    • P. Chandra

  • Article
    | Open Access

    Interactions between a localized magnetic moment and electrons in a metal can produce an emergent resonance that affects the metal’s properties. A realization of this Kondo effect in MoS2 provides an opportunity to study it in microscopic detail.

    • Camiel van Efferen
    • , Jeison Fischer
    •  & Wouter Jolie

  • Research Briefing |

    Neutron spectroscopy, entanglement analysis, and simulations provide evidence that KYbSe2 closely approximates a 2D quantum spin liquid. Although KYbSe2 displays magnetic ordering at low temperatures, its magnetic dynamics are dominated by fractionalized excitations that exhibit anomalously large quantum entanglement, indicating that on finite timescales KYbSe2 exhibits quantum spin liquid physics.

  • Article |

    Phonons that carry a large magnetic moment may be helpful for creating spintronic devices. Now this phenomenon is observed in an antiferromagnet and is enhanced by the critical fluctuations associated with a phase transition.

    • Fangliang Wu
    • , Song Bao
    •  & Qi Zhang

  • News & Views |

    The near-zero thermal expansion of Invar alloy Fe65Ni35 is technologically important but still unexplained. Measurements show that this phenomenon can be explained by the cancellation of magnetic and phonon contributions to the alloy’s entropy.

    • Ralf Röhlsberger

  • Article |

    Skyrmions are localized magnetic textures that form lattices in some magnetic materials. Neutron spin-echo measurements have now been able to observe topological effects on the low-energy collective excitations of a skrymion lattice.

    • Minoru Soda
    • , Edward M. Forgan
    •  & Hazuki Kawano-Furukawa

  • News & Views |

    The structure of disordered materials typically ages, but sometimes also rejuvenates, resulting in intriguing memory properties. Progress in numerical simulations of spin glasses has now enabled replication of such phenomena from simple models.

    • Eric Vincent

  • News & Views |

    Generating and controlling noncollinear spin textures is a promising route towards developing next-generation logic architectures beyond CMOS. Now, these spin textures can be engineered in twisted magnetic two-dimensional materials.

    • Bevin Huang

  • Article |

    A moiré potential may play a role in determining the magnetic properties of a two-dimensional homo or heterostructure. Now, non-collinear spin structures are observed in twisted double bilayer CrI3, providing a platform to engineer unusual magnetic textures.

    • Hongchao Xie
    • , Xiangpeng Luo
    •  & Liuyan Zhao

  • News & Views |

    Although quantum spin liquids have long been theoretically studied, an experimental demonstration has remained challenging. An inorganic oxide presents an ideal candidate to realize this disordered state.

    • Jie Ma

  • Article |

    Spin liquids are predicted to emerge in materials that combine strong electronic correlations with geometric frustration. Evidence has now been found for a spin liquid state in the triangular-lattice material NaRuO2.

    • Brenden R. Ortiz
    • , Paul M. Sarte
    •  & Stephen D. Wilson

  • Article
    | Open Access

    Solid-state systems are established candidates to study models of many-body physics but have limited control and readout capabilities. Ensembles of defects in diamond may provide a solution for studying dipolar systems.

    • E. J. Davis
    • , B. Ye
    •  & N. Y. Yao

  • News & Views |

    Disturbances in the orientation of magnetization in a magnet can propagate as spin waves or magnons. A design that makes it possible to optically excite nanoscale spin waves offers a route to developing miniaturized spin-based devices.

    • Akashdeep Kamra
    •  & Lina G. Johnsen

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