期刊
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
卷 426, 期 -, 页码 251-256出版社
ELSEVIER
DOI: 10.1016/j.physc.2005.02.039
关键词
pseudogap; out-of-plane resistivity; bi-based cuprates; Bi2201
Two kinds of pseudogap temperatures T* and T** are deduced from the out-of-plane resistivity of Bi1.74Pb0.38Sr1.88- CuO6+delta in magnetic fields up to 27 T. The pseudogap formed at T* is independent of the magnetic field, while another pseudogap at T** is suppressed by the application of magnetic fields. Taking into account that hole-concentration and magnetic-field dependences of T** resemble those of the superconducting transition temperature T-c, the pseudogap temperature correlating to the superconducting gap is not T* but T**. (c) 2005 Elsevier B.V. All rights reserved.
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