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Thermoelectric Power: A Simple, Instructive Probe of High-Tc Superconductors (CROSBI ID 77176)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Tallon, J.L. ; Cooper, J.R. ; De Silva, P.S.I.P.N ; Williams, G.V.M. ; Loram, J.W. Thermoelectric Power: A Simple, Instructive Probe of High-Tc Superconductors // Physical review letters, 75 (1995), 22; 4114-4117. doi: 10.1103/PhysRevLett.75.4114

Podaci o odgovornosti

Tallon, J.L. ; Cooper, J.R. ; De Silva, P.S.I.P.N ; Williams, G.V.M. ; Loram, J.W.

engleski

Thermoelectric Power: A Simple, Instructive Probe of High-Tc Superconductors

The thermoelectric power S(T) is studied for YBa2Cu3O7−δ and YBa2Cu4O8 as a function of Zn substitution and hole concentration p. A strong enhancement in S(T) is correlated with the smooth opening of an energy gap in the normal-state spectrum, as observed from NMR and heat capacity data, which appears to be responsible for the p-dependent variation in Tc. The data are consistent with the local suppression of this energy gap in the immediate neighborhood of a Zn atom. Studies of S(T) provide a simple means to explore the energy scales associated with the superconducting phase diagram and give some key insights into the origins of cuprate superconductivity.

electronic specific-heat ; YBA2CU3O6+X ; 300-K

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Podaci o izdanju

75 (22)

1995.

4114-4117

objavljeno

0031-9007

1079-7114

10.1103/PhysRevLett.75.4114

Povezanost rada

Fizika

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