New features in the vortex phase diagram of YBa2Cu3O7- delta

Deligiannis, K., de Groot, P.AJ., Oussena, M., Pinfold, S., Langan, R., Gagnon, R. and Taillefer, L. (1997) New features in the vortex phase diagram of YBa2Cu3O7- delta. Physical Review Letters, 79, (11), 2121-2124. (doi:10.1103/PhysRevLett.79.2121).


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Magnetic and transport measurements have been performed in high quality YBa2Cu3O7- delta single crystals. We demonstrate for the first time that the magnetization peak line in the phase diagram of YBa2Cu3O7- delta , Hp(T) exhibits an impressive similarity with the equivalent line for Bi2Sr2CaCu2O8. Our results show not only a similar temperature dependence but also an almost identical response to oxygen doping and a correlation to the multicritical point. At high temperatures we observe a previously unreported splitting of the magnetization peak.

Item Type: Article
Digital Object Identifier (DOI): doi:10.1103/PhysRevLett.79.2121
Related URLs:
Subjects: Q Science > QC Physics
Divisions : University Structure - Pre August 2011 > School of Physics and Astronomy > Quantum, Light and Matter
ePrint ID: 14743
Accepted Date and Publication Date:
Date Deposited: 01 Mar 2005
Last Modified: 31 Mar 2016 11:27

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