corner
corner
APS » Journals » Phys. Rev. B » Volume 61 » Issue 21
< Previous Article | Next Article >

Phys. Rev. B 61, 14362–14365 (2000)

Metastable vortex states in YBa2Cu3O7-δ crystal

Download: PDF (142 kB) Buy this article Export: BibTeX or EndNote (RIS)

Y. Radzyner
Department of Physics, Institute of Superconductivity, Bar-Ilan University, 52900 Ramat-Gan, Israel

S. B. Roy
Department of Physics, Institute of Superconductivity, Bar-Ilan University, 52900 Ramat-Gan, Israel
Low Temperature Physics Group, Centre for Advanced Technology, 452013 Indore, India

D. Giller
Department of Physics, Institute of Superconductivity, Bar-Ilan University, 52900 Ramat-Gan, Israel

Y. Wolfus
Department of Physics, Institute of Superconductivity, Bar-Ilan University, 52900 Ramat-Gan, Israel

A. Shaulov
Department of Physics, Institute of Superconductivity, Bar-Ilan University, 52900 Ramat-Gan, Israel

P. Chaddah
Low Temperature Physics Group, Centre for Advanced Technology, 452013 Indore, India

Y. Yeshurun
Department of Physics, Institute of Superconductivity, Bar-Ilan University, 52900 Ramat-Gan, Israel

Received 10 January 2000; published in the issue dated 1 June 2000

Magnetization measurements in an untwinned YBa2Cu3O7-δ crystal reveal a range of temperatures and fields for which the magnetization exhibits unusual history-dependent behavior. This range envelopes the transition line, Bss(T), separating between the vortex quasiordered and disordered phases. The observed history effects indicate that a disordered (quasiordered) vortex state can exist as a metastable state below (above) the Bss(T) line. The fields, defining the phase transition and the borders of the metastability region, are correlated to sharp features in the magnetization loop.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.61.14362
DOI:
10.1103/PhysRevB.61.14362
PACS:
74.60.Ge, 74.72.Bk, 64.60.My
 
< Previous Article | Next Article >