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Hall effect studies of Bi2Sr2CuOx crystals

✍ Scribed by X.H. Hou; J.W. Li; J.L. Zhang; S.Q. Guo; B. Yin; J.W. Xiong; C. Dong; Z.X. Zhao

Book ID: 103948110
Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 208 KB
Volume: 235-240
Category: Article
ISSN: 0921-4534
DOI: 10.1016/0921-4534(94)91918-6

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✦ Synopsis

We have investigated the temperature dependencies of the in-plane resistivity and the Hall coefficient in BL2Sr2CuO crystals across the metal-insulator (MI) transition, in the insulator crysta~ at low temperature (32 K<T<I!SK), the c, onduction is governed by a two-dimensional variable-range-hopping mechanism. In the superconducting crystal the Hall coefficient Rh exhibit a characteristic maximum at about 90 K, and after MI transition the maximum disappeared. We believe that the maximum in Rh-T curve represents the common feature of all the high Tc superconductors.

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