Tilt-wave instability of the flux-line lattice in anisotropic superconductors

Journal Article · Fri Oct 01 00:00:00 EDT 1993 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.48.9664· OSTI ID:5945750

Sardella, E; Moore, M A ^[1]

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1. Department of Theoretical Physics, University of Manchester, Manchester M139PL (United Kingdom)

The stability of the Abrikosov flux-line lattice for uniaxially anisotropic superconductors has been studied in the London approximation as a function of the anisotropic mass ratio and the angle [theta] between the [ital B] field and crystal [ital c] axis. For anisotropic mass ratio [ital M][sub [ital c]]/[ital M][sub [ital a][ital b]] larger than (3+ [radical]8 ) and for a range of angles [theta][sub [ital c]1][lt][theta][lt][theta][sub [ital c]2], the straight flux lines become unstable and a tilt-wave instability occurs, irrespective of the magnitude of the [ital B] field. We show that this instability occurs for a variety of cutoff schemes (which are needed to make London theory finite). The instability is probably related to the formation of a combined'' lattice of flux lines in which two species of vortices coexist simultaneously but run in different directions.

• OSTI ID: 5945750
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 48:13; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANISOTROPY
EFFECTIVE MASS
ELASTICITY
EQUATIONS
INSTABILITY
LONDON EQUATION
MAGNETIC FLUX
MASS
MECHANICAL PROPERTIES
NUMERICAL SOLUTION
SUPERCONDUCTORS
TENSILE PROPERTIES
TYPE-II SUPERCONDUCTORS
WAVE PROPAGATION