| Ag2+δTe薄膜的低温纵向磁电阻效应 |
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| 引用本文： | 梁冰青,王荫君,陈 熹.Ag2+δTe薄膜的低温纵向磁电阻效应[J].物理学报,1999,48(13):35-39. |
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| 作者姓名： | 梁冰青 王荫君 陈 熹 |
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| 作者单位： | 中国科学院物理研究所与凝聚态物理中心磁学国家重点实验室，北京 100080 |
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| 摘 要： | 采用高真空电子束蒸发镀膜方法制备了不同结构的Ag-Te多层膜，通过热处理得到了不同自掺杂浓度δ的非磁性Ag2+δTe薄膜.Ag2.1Te薄膜在低温下有很大的负纵向磁电阻，并且出现电阻率和磁电阻的多重峰现象.这可能与Ag的掺杂度δ和测量温度有很大关系，用掺杂的能带理论解释了有关的多重峰现象.
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| 收稿时间： | 1999-06-10 |
Low-Temperature Longitudinal Magnetoresis-Tance Effect in Ag2+δTe Thin Films |
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| Liang Bing-Qing,Wang Yin-Jun and Chen Xi.Low-Temperature Longitudinal Magnetoresis-Tance Effect in Ag2+δTe Thin Films[J].Acta Physica Sinica,1999,48(13):35-39. |
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| Authors: | Liang Bing-Qing Wang Yin-Jun and Chen Xi |
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| Abstract: | Abnormal longitudinal magnetoresistance (LMR) in self-doped silver telluride films at low temperature is investigated. In the Ag2.1Te films, we observe the large negative LMR and the multipeaks in magnetic resistivity ρand LMR that strongly depend on doping concentration and temperature. The abnormal MR behavior, which might result from the complex structure and texture of the films, is explained by means of Toyozawa model. |
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