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Anomalous Hall Effect in Layered Ferrimagnet MnSb2Te4
Chinese Physics Letters ( IF 3.5 ) Pub Date : 2020-04-01 , DOI: 10.1088/0256-307x/37/4/047301
Gang Shi 1, 2 , Mingjie Zhang 1, 2 , Dayu Yan 1, 2 , Honglei Feng 1, 2 , Meng Yang 1, 2 , Youguo Shi 1, 2 , Yongqing Li 1, 2
Affiliation  

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 4 K, 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.

中文翻译:

层状铁磁体 MnSb2Te4 中的反常霍尔效应

我们报告了亚铁磁性外尔半金属的候选者 MnSb2Te4 的低温电子传输特性。长程磁序表现为异常霍尔电阻中近乎方形的磁滞回线,以及磁阻的急剧跳跃。在低于 4 K 的温度下,纵向电阻的温度依赖性出现 lnT 型上升,这可归因于电子 - 电子相互作用(EEI),因为磁阻的温度依赖性可以排除弱局域化。尽管异常霍尔电阻在相同的温度范围内表现出类似的 lnT 型上升,但在异常霍尔电导率中没有这种校正。
更新日期:2020-04-01
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