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Failure of the empirical OCT law in the Bi2Sr2CuO6+d compound | Z. Konstantinovic
; G. Le Bras
; A. Forget
; D. Colson
; F. Jean
; G. Collin
; Z.Z. Li
; H. Raffy
; C. Ayache
; | Date: |
7 Nov 2002 | Subject: | Superconductivity; Strongly Correlated Electrons | cond-mat.supr-con cond-mat.str-el | Abstract: | We have studied the evolution of the thermoelectric power S(T) with oxygen doping of single-layered Bi2Sr2CuO6+d thin films and ceramics in the overall superconducting (Tc, S290K) phase diagram. While the universal relation between the room-temperature thermopower S290K and the critical temperature is found to hold in the strongly overdoped region (d>0.14), a strong violation is observed in the underdoped part of the phase diagram. The observed behaviour is compared with other cuprates and the different scenarios are discussed. | Source: | arXiv, cond-mat/0211135 | Services: | Forum | Review | PDF | Favorites |
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