標題: Anisotropic peak effect due to structural phase transition in the vortex lattice
作者: Rosenstein, B
Knigavko, A
電子物理學系
Department of Electrophysics
公開日期: 26-Jul-1999
摘要: It is shown that the recently observed new peak effect in YBCO could be explained by the softening of the vortex lattice due to a structural phase transition in the vortex lattice. At this transition square lattice transforms into a distorted hexagonal one. While conventional peak effect is associated with the softening of shear modes (elastic modulus c(66) vanishes) at melting, in this case the relevant mode is "squash" mode(c(11) + c(22) - 2c(12) vanishes).
URI: http://dx.doi.org/10.1103/PhysRevLett.83.844
http://hdl.handle.net/11536/31197
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.83.844
期刊: PHYSICAL REVIEW LETTERS
Volume: 83
Issue: 4
起始頁: 844
結束頁: 847
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