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

Baruch Rosenstein; Anton Knigavko

doi:10.1016/S0921-4534(99)00667-X

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

Baruch Rosenstein, Anton Knigavko

Department of Electrophysics

Research output: Contribution to journal › Conference article › peer-review

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 language	English
Pages (from-to)	203-206
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	332
Issue number	1
DOIs	https://doi.org/10.1016/S0921-4534(99)00667-X
State	Published - 1 Jan 2000
Event	1st Euroconference on Vortex Matter in Superconductors at Extreme Scales and Conditions - Crete, Greece Duration: 18 Sep 1999 → 24 Sep 1999

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N2 - 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.

AB - 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.

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Y2 - 18 September 1999 through 24 September 1999

ER -

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

Abstract

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