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Title: Doping dependence of isotope exponent in YBa2Cu3O6+x (x=0.4-1.0) within Van Hove scenario
Authors: Shamsuzzaman, A M
Shareef, Shahryar
Naquib, S H
Islam, A K M A
Issue Date: Feb-1999
Publisher: NISCAIR-CSIR, India
Abstract: A M Shamsuzzaman, Shahryar Shareef, S H Naquib & A K M A Islam Isotope exponent α of YBa2Cu3O6+x has been analysed with oxygen content (x=0.4-1.0) by using exact expressions for isotope shift exponent for a electronic density of states (EDOS) in the Van Hove singularity scenario (VHS). The result reproduces the general experimental trend of α as a function of x. The theoretical value of α at optimum doping has been found lesser than that obtained by other workers, though the experimental value is still smaller.
Page(s): 133-135
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.37(02) [February 1999]

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