Commensurability oscillations and a new phase transition in YBa2Cu3Oy single crystals

Authors
Zhukov, AA Mikheev, MG Voronkova, VI Kugel', KI Rakhmanov, AL Kupfer, H Wolf, T Perkins, GK Caplin, AD
Citation
Aa. Zhukov et al., Commensurability oscillations and a new phase transition in YBa2Cu3Oy single crystals, JETP LETTER, 69(11), 1999, pp. 881-886
Citations number
19
Categorie Soggetti
Physics
Journal title
JETP LETTERS
ISSN journal
00213640 → ACNP
Volume
69
Issue
11
Year of publication
1999
Pages
881 - 886
Database
ISI
SICI code
0021-3640(19990610)69:11<881:COAANP>2.0.ZU;2-H
Abstract
Magnetization oscillations due to the commensurability of the vortex and cr ystal lattice periods in YBa2Cu3Oy (y=6.97+/-0.02) single crystals are inve stigated using a high angular resolution magnetometer. A sharp peak in the temperature dependence of the oscillation amplitude as well as other featur es in the behavior of the oscillation amplitude and of the irreversible mag netization are observed at T(f)similar to 60 K. It is inferred that T-f is the temperature of a transition of the solid vortex state to a smectic phas e. (C) 1999 American Institute of Physics. [S0021-3640(99)01211-6].