Instability of the Abrikosov Lattice due to Nonanalytic Core Reconstruction of Vortices in Bosonic Superfluids

Avraham Klein; Oded Agam; Igor L. Aleiner

doi:10.1103/PhysRevLett.118.085303

Instability of the Abrikosov Lattice due to Nonanalytic Core Reconstruction of Vortices in Bosonic Superfluids

Avraham Klein, Oded Agam, Igor L. Aleiner

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

Abstract

We study the impact of the nonanalytic reconstruction of vortex cores on static vortex structures in weakly coupled superfluids. We show that, in rotating two-dimensional systems, the Abrikosov vortex lattice is unstable to vortex core deformation: Each zero of the wave function becomes a cut of finite length. The directors characterizing the orientations of the cuts are themselves ordered in superstructures due either to surface effects or to interaction with shear deformations of the lattice (spiral structure). Similar instability may also be observable in clean superconducting films.

Original language	English (US)
Article number	085303
Journal	Physical review letters
Volume	118
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.118.085303
State	Published - Feb 23 2017

Bibliographical note

Funding Information:
We are grateful to N. Katz, A. Kuklov, and E. Zeldov for their discussions of the results. This research was supported by United States-Israel Binational Science Foundation (BSF) Grant No. 2012-134 and Israel Science Foundation (ISF) Grant No.302/14 (O.A.), and by the Simons foundation (I.L.A.).

Publisher Copyright:
© 2017 American Physical Society.

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abstract = "We study the impact of the nonanalytic reconstruction of vortex cores on static vortex structures in weakly coupled superfluids. We show that, in rotating two-dimensional systems, the Abrikosov vortex lattice is unstable to vortex core deformation: Each zero of the wave function becomes a cut of finite length. The directors characterizing the orientations of the cuts are themselves ordered in superstructures due either to surface effects or to interaction with shear deformations of the lattice (spiral structure). Similar instability may also be observable in clean superconducting films.",

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Instability of the Abrikosov Lattice due to Nonanalytic Core Reconstruction of Vortices in Bosonic Superfluids

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