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Anomalous electronic susceptibility in Bi2Sr2CuO6+d and comparison with other overdoped cuprates | | G. Le Bras
; Z. Konstantinovic
; J-P. Carton
; A. Forget
; D. Colson
; F. Jean
; G. Collin
; Y. Dumont
; C. Ayache
; | | Date: |
17 Jun 2002 | | Subject: | Superconductivity | cond-mat.supr-con | | Abstract: | We report magnetic susceptibility performed on overdoped Bi2Sr2CuO6+d powders as a function of oxygen doping d and temperature T. The decrease of the spin susceptibility with increasing T is confirmed. At sufficient high temperature, the spin susceptibility Chi_s presents an unusual linear temperature dependence Chi_s ~ Chi_s0 -Chi_1 T. Moreover, a linear correlation between Chi_1 and Chi_s0 for increasing hole concentration is displayed. A temperature Tchi, independent of hole doping characterizes this scaling. Comparison with other cuprates of the literature(LSCO, Tl-2201 and Bi-2212), over the same overdoped range, shows similarities with above results. These non conventional metal features will be discussed in terms of a singular narrow-band structure. | | Source: | arXiv, cond-mat/0206313 | | Services: | Forum | Review | PDF | Favorites | |
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