Dissipation of moving vortices in thin films

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2022-01-25
Authors
Kogan, V. G.
Nakagawa, N.
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Iowa State University Digital Repository, Ames IA (United States)
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Ames National LaboratoryCenter for Nondestructive Evaluation
Abstract
Moving vortices in thin superconducting films are considered within the time-dependent London description. The dissipation due to out-of-core normal excitations for two vortices moving together turns out to have a minimum for the separation vector a parallel to the velocity and equal to a(m) approximate to 2.2 Lambda is the Pearl length. The minimum entropy production suggests that moving vortices should have a tendency to form chains along the velocity with a period of the order a(m).
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This article is published as Kogan, V. G., and N. Nakagawa. "Dissipation of moving vortices in thin films." Physical Review B 105, no. 2 (2022): L020507. DOI: 10.1103/PhysRevB.105.L020507. Copyright 2022 American Physical Society. DOE Contract Number(s): AC02-07CH11358. Posted with permission.
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