Two-step superconducting-to-normal transitions in frustrated triangular Josephson-junction arrays
- Authors
- Baek, IC[Baek, In-Cheol]; Yun, YJ[Yun, Young-Je]; Choi, MY[Choi, Mu-Yong]
- Issue Date
- Mar-2013
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Josephson-junction arrays; Frustration effects; Or
- Citation
- PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, v.486, pp.13 - 16
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
- Volume
- 486
- Start Page
- 13
- End Page
- 16
- URI
- https://scholarworks.bwise.kr/skku/handle/2021.sw.skku/61481
- DOI
- 10.1016/j.physc.2013.01.005
- ISSN
- 0921-4534
- Abstract
- Current-voltage characteristics measurements suggest that the superconducting-to-normal transition in triangular Josephson-junction arrays with the frustration index f = 1/4 and 1/3, which may have excitations of zero-energy domain walls, occurs in two steps, a vortex-disordering transition followed by a Berezinskii-Kosterlitz-Thouless-like phase-disordering transition at a higher temperature. The transport data also indicate that a similar two-step transition occurs in a weakly frustrated array as well. Experimental findings for a weakly frustrated array are inconsistent with existing theory. (C) 2013 Elsevier B.V. All rights reserved.
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Collections - Science > Department of Physics > 1. Journal Articles
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