Anomalous Electronic Susceptibility in Bi2sr2cuo6+d
Bras-Jasmin, G. Le · Konstantinovic, Z. · Carton, J. P. · Colson, D. · Forget, A. · Jean, F. · Collin, G. · Dumont, Y. · Ayache, C.
Original · EN
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 chis with increasing T is confirmed. At sufficient high temperature, chis presents an unusual linear temperature dependence chis=chis0 -chi1T. Moreover, a linear correlation between chi1 and chis0 for increasing hole concentration has been displayed. These non conventional metal features will be discussed in terms of a singular narrow-band structures.
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