90° reorientation in the vortex lattice of borocarbide superconductors

Anton Knigavko; Baruch Rosenstein

doi:10.1103/PhysRevB.62.15151

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90° reorientation in the vortex lattice of borocarbide superconductors

Anton Knigavko, Baruch Rosenstein

DOI 10.1103/PhysRevB.62.15151 · Physical Review B

T1

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Abstract

We explain 90° reorientation in the vortex lattice of borocarbide superconductors on the basis of a phenomenological extension of the nonlocal London model that takes full account of the symmetry of the system. Microscopic mechanisms that could generate the correction terms are analyzed. We show that for any dispersion relation and longitudinal phonon-electron pairing mechanism the relevant quantity is strongly suppressed. Possible phenomenological interaction terms providing the effect are studied.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
LuNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
ErNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown