The Magnetoresistance of Nonsuperconducting Bi2Sr2CuOy Crystals
The normal-state charge transport of high-Tc cuprates has been one of the focuses in understanding the high-Tc mechanism.We recently studied the temperature-dependent ab-plane resistivity of Bi2Sr2CuOy crystals,and found that many of the as-grown crystals exhibited metallic conduction at high temper...
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| Veröffentlicht in: | 中国科学：数学英文版 1994 (11), p.1354-1362 |
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| container_title | 中国科学：数学英文版 |
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| creator | 王楠林 阮可青 杨利民 种燕 邓明 周为 潘国强 陈兆甲 曹烈兆 吴文彬 周贵恩 张裕恒 |
| description | The normal-state charge transport of high-Tc cuprates has been one of the focuses in understanding the high-Tc mechanism.We recently studied the temperature-dependent ab-plane resistivity of Bi2Sr2CuOy crystals,and found that many of the as-grown crystals exhibited metallic conduction at high temperature,but localized behavior at low temperature.The magnetoresistance measurement has been performed on the crystals showing strong-localization behavior.It is found that in the low temperature regime the samples show positive magnetoresistance at low field,but negative at high field.The magnetic field corresponding to the maximum positive magnetoresistance shifts to the direction of low field with the increase of the temperature.However,in the high temperature regime,only the negative magnetoresistance is observed no matter how the field is.With further increase of the temperature the magnetoresistance effect becomes less prominent.By comparison of the magnetoresistance in longitudinal direction with that in |
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| identifier | ISSN: 1674-7283 |
| ispartof | 中国科学：数学英文版, 1994 (11), p.1354-1362 |
| issn | 1674-7283 1869-1862 |
| language | eng |
| recordid | cdi_chongqing_primary_1005081000 |
| source | Alma/SFX Local Collection |
| subjects | behavior Bi2Sr2CuOy crystal magnetoresistance strong-localization |
| title | The Magnetoresistance of Nonsuperconducting Bi2Sr2CuOy Crystals |
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