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説明:

We report the nonreciprocal charge transport along the longitudinal and transverse directions in the vortex flow regime of FeSe superconducting films. Clear nonreciprocal signals under an in-plane magnetic field reveal symmetry breaking at the film surfaces, since the crystal structure of FeSe is centrosymmetric. Although the symmetry in such polar superconductors allows the nonreciprocal transverse response under a magnetic field parallel to the electric current, its observation is physically counterintuitive, because vortex motion is not expected in this configuration. We propose that thermally excited (anti)vortices due to the two-dimensional nature of FeSe give rise to the nonreciprocal transverse signals when the mirror symmetry is broken by the in-plane magnetic field.

権利情報:

• http://arxiv.org/licenses/nonexclusive-distrib/1.0/
  

キーワード: nonreciprocal charge transport

刊行年月日: 2025-09-25

出版者: American Physical Society (APS)

掲載誌:

• Physical Review Letters (ISSN: 10797114) vol. 135 issue. 13 136001

研究助成金:

• Japan Science and Technology Agency JPMJFR203H
• Japan Society for the Promotion of Science JP23K2244
• Japan Society for the Promotion of Science JP23K26525
• Japan Society for the Promotion of Science JP24H01177
• Japan Society for the Promotion of Science JP24K21726
• Japan Society for the Promotion of Science JP24K00566

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI:

公開URL: https://doi.org/10.1103/4mq6-z8q7

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更新時刻: 2025-11-18 12:30:12 +0900

MDRでの公開時刻: 2025-11-18 12:23:38 +0900