Properties of flux lines in cuprate oxide superconductors

M. Tachiki; T. Koyama; Saburo Takahashi

doi:10.1016/0921-4534(91)91990-L

Properties of flux lines in cuprate oxide superconductors

M. Tachiki, T. Koyama, Saburo Takahashi

Materials Property Division

Research output: Contribution to journal › Article

21 Citations (Scopus)

Abstract

We theoretically study the nature of the flux lines in the cuprate oxide superconductors using a layer model in which superconductivity is primarily generated in the CuO₂ layers by some electron pairing interaction and weak superconductivity is induced in other spacing layers by the proximity effect. In an external magnetic field parallel to the layers both the flux lines and their lattice are extremely anisotropic, and the flux lines are most stable in the weakly superconducting layers. Therefore, the layer structure itself works as an intrinsic pinning center. In the magnetic field perpendicular to the layers, the usual straight flux line is unstable, and the stable flux line is a spiral one propagating perpendicular to the layers. The amplitude and pitch of the spiral flux line depend on the anisotropy of superconductivity in the layered superconductors.

Original language	English
Pages (from-to)	303-308
Number of pages	6
Journal	Physica C: Superconductivity and its applications
Volume	185-189
Issue number	PART 1
DOIs	https://doi.org/10.1016/0921-4534(91)91990-L
Publication status	Published - 1991 Dec 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/0921-4534(91)91990-L

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Tachiki, M., Koyama, T., & Takahashi, S. (1991). Properties of flux lines in cuprate oxide superconductors. Physica C: Superconductivity and its applications, 185-189(PART 1), 303-308. https://doi.org/10.1016/0921-4534(91)91990-L

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