OBSERVATION OF DEFECT-INDEPENDENT AB-PLANE VORTEX DYNAMICS IN YBA2CU3O7 SINGLE-CRYSTALS WITH THE 3RD-HARMONIC TRANSMITTIVITY MEASUREMENTS

Authors
JIANG W YEH NC FU CC SCHMIDT B KONCZYKOWSKI M
Citation
W. Jiang et al., OBSERVATION OF DEFECT-INDEPENDENT AB-PLANE VORTEX DYNAMICS IN YBA2CU3O7 SINGLE-CRYSTALS WITH THE 3RD-HARMONIC TRANSMITTIVITY MEASUREMENTS, Czechoslovak journal of Physics, 46, 1996, pp. 1659-1660
Citations number
9
Categorie Soggetti
Physics
Journal title
Czechoslovak journal of Physics → ACNP
ISSN journal
00114626
Volume
46
Year of publication
1996
Supplement
3
Pages
1659 - 1660
Database
ISI
SICI code
0011-4626(1996)46:<1659:OODAVD>2.0.ZU;2-A
Abstract
Anisotropic vortex dynamics of YBa2Cu3O7 single crystals with heavy-io n induced parallel and canted columnar defects are investigated and co mpared with that of the as-grown single crystals. Novel vortex dynamic s are observed when magnetic field is applied close to the ab-plane (( H) over right arrow perpendicular to (c) over cap). The amplitude of t he third harmonic transmittivity exhibits a secondary peak at lower te mperatures in addition to a sharper peak at higher temperatures. The p ossible relevance of this observation to the theoretical model of ''sm ectic crystal'' to vortex-liquid phase transitions is discussed.