Evidence for two distinct mechanisms for holes in single-thallium layer cuprate superconductors

Manivannan, V. ; Shivakumara, C. ; Gopalkrishnan, J. (1994) Evidence for two distinct mechanisms for holes in single-thallium layer cuprate superconductors Modern Physics Letters B, 8 (5). pp. 339-343. ISSN 0217-9849

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Official URL: http://www.worldscinet.com/mplb/08/0805/S021798499...

Related URL: http://dx.doi.org/10.1142/S0217984994000340

Abstract

Cuprate superconductors derived from TlSr2CuO5 and TlSr3Cu2O7 possess unusually small concentrations of chemically titratable holes (<0.1) as compared with other cuprate superconductors with the same number of CuO2 sheets. The result suggests the presence of a band overlap contributing to a hole concentration in these materials.

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