ANISOTROPY AND DIMENSIONAL CROSSOVER OF THE VORTEX STATE IN BI2SR2CACU2O8+DELTA CRYSTALS

Authors
BERNHARD C WENGER C NIEDERMAYER C POOKE DM TALLON JL KOTAKA Y SHIMOYAMA J KISHIO K NOAKES DR STRONACH CE SEMBIRING T ANSALDO EJ
Citation
C. Bernhard et al., ANISOTROPY AND DIMENSIONAL CROSSOVER OF THE VORTEX STATE IN BI2SR2CACU2O8+DELTA CRYSTALS, Physical review. B, Condensed matter, 52(10), 1995, pp. 7050-7053
Citations number
20
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
52
Issue
10
Year of publication
1995
Pages
7050 - 7053
Database
ISI
SICI code
0163-1829(1995)52:10<7050:AADCOT>2.0.ZU;2-9
Abstract
We report muon-spin-rotation studies of the magnetic-field distributio n n(B) in the vortex state in both underdoped and strongly overdoped B i2Sr2CaCu2O8+delta single crystals. With increasing magnetic field we observe sudden changes in n(B) that are indicative of a reduction in t he dimensionality of the vortex system. The crossover field B depends strongly on the doping state and the corresponding anisotropy gamma o f the system. From magnetization measurements we find evidence that th e second peak in the M-H loops is related to the crossover in the vort ex structure in B.