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New features in the vortex phase diagram of YBa2Cu3O7- delta

Deligiannis, K., de Groot, P.A.J., 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), pp. 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.

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Published date: 1997


Local EPrints ID: 14743
PURE UUID: 785194ba-1edc-4909-816f-7167401adf0e

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Date deposited: 01 Mar 2005
Last modified: 24 Jul 2017 16:36

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Author: K. Deligiannis
Author: P.A.J. de Groot
Author: M. Oussena
Author: S. Pinfold
Author: R. Langan
Author: R. Gagnon
Author: L. Taillefer

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