Anisotropic peak effect due to structural phase transition in the vortex lattice

Baruch Rosenstein, Anton Knigavko

Research output: Contribution to journalConference article

Abstract

The recently observed new peak effect in YBCO is explained by softening of the vortex lattice (VL) due to a structural phase transition in the VL. At this transition, square lattice transforms into a distorted hexagonal one. While conventional peak effect is associated with softening of shear modes at melting, in this case the relevant mode is the point. The squash mode is highly anisotropic and we point out some peculiar effects associated with this feature.

Original languageEnglish
Pages (from-to)203-206
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume332
Issue number1
DOIs
StatePublished - 1 Jan 2000
Event1st Euroconference on Vortex Matter in Superconductors at Extreme Scales and Conditions - Crete, Greece
Duration: 18 Sep 199924 Sep 1999

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