Thermopower in the strongly overdoped region of single-layer Bi2Sr2CuO6+d superconductor
arXiv:cond-mat/0203515 · doi:10.1103/PhysRevB.66.020503
Abstract
The evolution of the thermoelectric power S(T) with doping, p, of single-layer Bi2Sr2CuO6+d ceramics in the strongly overdoped region is studied in detail. Analysis in term of drag and diffusion contributions indicates a departure of the diffusion from the T-linear metallic behavior. This effect is increased in the strongly overdoped range (p~0.2-0.28) and should reflect the proximity of some topological change.
4 pages, 4 figures