| Anomalous Hall Effect in Layered Ferrimagnet MnSb2Te4 |
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| 作者姓名： | 史刚 张明杰 闫大禹 冯红磊 杨萌 石友国 李永庆 |
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| 作者单位： | Beijing National Laboratory for Condensed Matter Physics;School of Physical Sciences |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos.11961141011 and 61425015;the National Key Research and Development Program under Grant No.2016YFA0300600;the Strategic Priority Research Program of Chinese Academy of Sciences under Grant No.XDB28000000. |
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| 摘 要： | We report on low-temperature electron transport properties of MnSb2Te4,a candidate of ferrimagnetic Weyl semimetal.Long-range magnetic order is manifested as a nearly square-shaped hysteresis loop in the anomalous Hall resistance,as well as sharp jumps in the magnetoresistance.At temperatures below 4K,a lnT-type upturn appears in the temperature dependence of longitudinal resistance,which can be attributed to the electron-electron interaction(EEI),since the weak localization can be excluded by the temperature dependence of magnetoresistance.Although the anomalous Hall resistance exhibits a similar lnT-type upturn in the same temperature range,such correction is absent in the anomalous Hall conductivity.Our work demonstrates that MnSb2Te4 microflakes provide an ideal system to test the theory of EEI correction to the anomalous Hall effect.
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| 关 键 词： | effect. CORRECTION attributed |
Anomalous Hall Effect in Layered Ferrimagnet MnSb_2Te_4 |
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| Gang Shi,Mingjie Zhang,Dayu Yan,Honglei Feng,Meng Yang,Youguo Shi,Yongqing Li.Anomalous Hall Effect in Layered Ferrimagnet MnSb2Te4[J].Chinese Physics Letters,2020(4):125-128. |
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| Authors: | Gang Shi Mingjie Zhang Dayu Yan Honglei Feng Meng Yang Youguo Shi Yongqing Li |
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| Affiliation: | (Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190) |
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| Abstract: | We report on low-temperature electron transport properties of MnSb_2Te_4,a candidate of ferrimagnetic Weyl semimetal.Long-range magnetic order is manifested as a nearly square-shaped hysteresis loop in the anomalous Hall resistance,as well as sharp jumps in the magnetoresistance.At temperatures below 4K,a lnT-type upturn appears in the temperature dependence of longitudinal resistance,which can be attributed to the electron-electron interaction(EEI),since the weak localization can be excluded by the temperature dependence of magnetoresistance.Although the anomalous Hall resistance exhibits a similar lnT-type upturn in the same temperature range,such correction is absent in the anomalous Hall conductivity.Our work demonstrates that MnSb_2Te_4 microflakes provide an ideal system to test the theory of EEI correction to the anomalous Hall effect. |
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