Nature of the 45° vortex lattice reorientation in tetragonal superconductors

A. Knigavko; V. G. Kogan; B. Rosenstein; T.-J. Yang

doi:10.1103/PhysRevB.62.111

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Nature of the 45° vortex lattice reorientation in tetragonal superconductors

A. Knigavko, V. G. Kogan, B. Rosenstein, T.-J. Yang

DOI 10.1103/PhysRevB.62.111 · Physical Review B

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Abstract

The transformation of the vortex lattice in a tetragonal superconductor which consists of the 45° reorientation relative to the crystal axes is studied using the nonlocal London model. It is shown that the reorientation occurs as two successive second order (continuous) phase transitions. The transition magnetic fields are calculated for a range of parameters relevant for borocarbide superconductors in which the reorientation has been observed.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
LuNi2B2C Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
TmNi2B2C 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