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).
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.
|Subjects:||Q Science > QC Physics|
|Divisions:||University Structure - Pre August 2011 > School of Physics and Astronomy > Quantum, Light and Matter
|Date Deposited:||01 Mar 2005|
|Last Modified:||25 Apr 2013 09:48|
|Contributors:||Deligiannis, K. (Author)
de Groot, P.AJ. (Author)
Oussena, M. (Author)
Pinfold, S. (Author)
Langan, R. (Author)
Gagnon, R. (Author)
Taillefer, L. (Author)
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