Studies of the Anomaly of Hall Coefficient in High Tc Superconducting Thin Films
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HE Zhenhui,
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SHA Jian,
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SU Zhenpeng,
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CHENG Xiang ai,
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WANG Shunxi,
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FANG Minghu,
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ZHANG Qirui,
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ZHOU Xianyi,
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YAO Weiguo,
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QI Zhenzhong,
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YI Huairen,
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LI Hongcheng
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Abstract
Measurements of the Hall coefficient (RH) were carried out for a polycrystalline YBa2Cu3O7-y film, a well oriented YBa2Cu3O7-y film and an oriented GdBa2Cu3O7-y film. Sign change of RH was observed for the two YBa2Cu3O7-y films near Tc, but not for the GdBa2Cu3O7-y film which contains partly the component of (110) orientation. The RH anisotropy model proposed previously turns out to be incorrect. Why the YBa2Cu3O7-y films experience sign change of RH while the GdBa2Cu3O7-y film does not is tentatively investigated.
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HE Zhenhui, SHA Jian, SU Zhenpeng, CHENG Xiang ai, WANG Shunxi, FANG Minghu, ZHANG Qirui, ZHOU Xianyi, YAO Weiguo, QI Zhenzhong, YI Huairen, LI Hongcheng. Studies of the Anomaly of Hall Coefficient in High Tc Superconducting Thin Films[J]. Chin. Phys. Lett., 1991, 8(6): 310-313.
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HE Zhenhui, SHA Jian, SU Zhenpeng, CHENG Xiang ai, WANG Shunxi, FANG Minghu, ZHANG Qirui, ZHOU Xianyi, YAO Weiguo, QI Zhenzhong, YI Huairen, LI Hongcheng. Studies of the Anomaly of Hall Coefficient in High Tc Superconducting Thin Films[J]. Chin. Phys. Lett., 1991, 8(6): 310-313.
|
HE Zhenhui, SHA Jian, SU Zhenpeng, CHENG Xiang ai, WANG Shunxi, FANG Minghu, ZHANG Qirui, ZHOU Xianyi, YAO Weiguo, QI Zhenzhong, YI Huairen, LI Hongcheng. Studies of the Anomaly of Hall Coefficient in High Tc Superconducting Thin Films[J]. Chin. Phys. Lett., 1991, 8(6): 310-313.
|
HE Zhenhui, SHA Jian, SU Zhenpeng, CHENG Xiang ai, WANG Shunxi, FANG Minghu, ZHANG Qirui, ZHOU Xianyi, YAO Weiguo, QI Zhenzhong, YI Huairen, LI Hongcheng. Studies of the Anomaly of Hall Coefficient in High Tc Superconducting Thin Films[J]. Chin. Phys. Lett., 1991, 8(6): 310-313.
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