Phase transitions and critical phenomena

Definition

Phase transitions and critical phenomena are the changes of a system from one regime or state to another exhibiting very different properties, and the unusual effects that occur on the boundary between them. A change in the state of matter, such as from a solid to a liquid, is a classic example.

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Latest Research and Reviews

  • Research | | open

    Materials with a Kitaev spin liquid ground state are sought after as models of quantum phases but candidates so far form either zig-zag or incommensurate magnetic order. Ruiz et al. find a crossover between these states in β-Li2IrO3 under weak magnetic fields, indicating strongly frustrated spin interactions.

    • Alejandro Ruiz
    • , Alex Frano
    • , Nicholas P. Breznay
    • , Itamar Kimchi
    • , Toni Helm
    • , Iain Oswald
    • , Julia Y. Chan
    • , R. J. Birgeneau
    • , Zahirul Islam
    •  & James G. Analytis
  • Research |

    A structural phase transition in a monolayer of molybdenum ditelluride has been shown experimentally to be driven forwards and backwards by electrostatic doping.

    • Ying Wang
    • , Jun Xiao
    • , Hanyu Zhu
    • , Yao Li
    • , Yousif Alsaid
    • , King Yan Fong
    • , Yao Zhou
    • , Siqi Wang
    • , Wu Shi
    • , Yuan Wang
    • , Alex Zettl
    • , Evan J. Reed
    •  & Xiang Zhang
  • Research | | open

    The magnetism-induced chirality in electron transportation is of fundamental importantance in condensed matter physics but the origin is still unclear. Here the authors demonstrate that the asymmetric electron scattering by chiral spin fluctuations can be the key to the electrical magnetochiral effect in MnSi.

    • T. Yokouchi
    • , N. Kanazawa
    • , A. Kikkawa
    • , D. Morikawa
    • , K. Shibata
    • , T. Arima
    • , Y. Taguchi
    • , F. Kagawa
    •  & Y. Tokura
  • Research | | open

    An analog quantum simulation scheme has been explored with a quantum hardware based on a superconducting circuit. Here the authors investigate the time evolution of the quantum Rabi model at ultra-strong coupling conditions, which is synthesized by slowing down the system dynamics in an effective frame.

    • Jochen Braumüller
    • , Michael Marthaler
    • , Andre Schneider
    • , Alexander Stehli
    • , Hannes Rotzinger
    • , Martin Weides
    •  & Alexey V. Ustinov

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