Reconstruction of vortex lattices at low inductions

Journal Article · Sun Mar 15 23:00:00 EST 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.68.1758· OSTI ID:7234665

Sudbro, A; Brandt, E H ^[1]

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1. AT T Bell Laboratories, Murray Hill, New Jersey 07974 (United States) Max-Planck-Institut fuer Metallforschung, Institut fuer Physik, Heisenbergstrasse 1, D-7000 Stuttgart 80 (Germany)

The nonlocal elasticity and the normal modes of an unpinned flux-line lattice (FLL) in a uniaxially anisotropic supeconductor are considered in the low-induction regime {ital b}={ital B}/{ital B}{sub {ital c}2}{much lt}1 at oblique angles {theta} between {bold B} and the {bold {cflx c}} axis. A novel feature of anisotropic superconductors is {ital strongly} {ital dispersive} {ital shear} {ital moduli} when {theta}{gt}0. Thus, the normal modes of the FLL may become soft away from the zone center, signaling a {bold k}{ne}{bold 0} {ital structural} instability of the distorted hexagonal FLL. Vortex structures of a novel type are thus possible in anisotropic superconductors.

• OSTI ID: 7234665
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 68:11; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANISOTROPY
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELASTICITY
ENERGY LEVELS
EXCITED STATES
GROUND STATES
HEXAGONAL LATTICES
HIGH-TC SUPERCONDUCTORS
MECHANICAL PROPERTIES
SHEAR PROPERTIES
SUPERCONDUCTORS
TENSILE PROPERTIES
TYPE-II SUPERCONDUCTORS
VIBRATIONAL STATES
VORTICES