BKT Phase Transitions in Magnetic Systems: Formations of Narrow Stripes and Vortex–Antivortex Pairs in a Quasi-2D Ferromagnet K2CuF4


2021-4-14

JPS Hot Topics 1, 032

https://doi.org/10.7566/JPSHT.1.032

© The Physical Society of Japan

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Formations of Narrow Stripes and Vortex–Antivortex Pairs in a Quasi-Two-Dimensional Ferromagnet K2CuF4

Yoshihiko Togawa, Tetsuya Akashi, Hiroto Kasai, Gary W. Paterson, Stephen McVitie, Yusuke Kousaka, Hiroyuki Shinada, Jun-ichiro Kishine, and Jun Akimitsu
J. Phys. Soc. Jpn. 90, 014702 (2021).

Cryogenic Lorentz transmission electron microscopy directly shows that vortex and antivortex pairs emerge in a quasi-two-dimensional ferromagnet K2CuF4. This work may reveal the nature of Berezinskii, Kosterlitz, and Thouless phase transition in a magnetic system.


Formations of Narrow Stripes and Vortex–Antivortex Pairs in a Quasi-Two-Dimensional Ferromagnet K2CuF4

Yoshihiko Togawa, Tetsuya Akashi, Hiroto Kasai, Gary W. Paterson, Stephen McVitie, Yusuke Kousaka, Hiroyuki Shinada, Jun-ichiro Kishine, and Jun Akimitsu
J. Phys. Soc. Jpn. 90, 014702 (2021).

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