Room-temperature angular-dependent topological Hall effect in chiral antiferromagnetic Weyl semimetal Mn3Sn
Room-temperature angular-dependent topological Hall effect in chiral antiferromagnetic Weyl semimetal Mn3Sn
复制标题
手性反铁磁 Weyl 半金属 Mn3Sn 中的室温角度相关拓扑霍尔效应
DOI：
10.1063/1.5119838
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发表时间：
2019-09
期刊：
影响因子：
--
通讯作者：
Y. P. Sun
中科院分区：
文献类型：
--
作者：
J. Yan;X. Luo;H. Y. Lv;Y. Sun;P. Tong;W. J. Lu;X. B. Zhu;W. H. Song;Y. P. Sun
手性反铁磁（AFM）Weyl半金属Mn 3Sn在室温附近表现出很大的反常霍尔效应（AHE），这是由于电子色散中的Weyl节点产生的Berry曲率引起的.在这里，我们研究的温度和角度依赖的霍尔效应和磁性测量在单晶Mn 3Sn。有一些有趣的现象：第一，一个大的滞后型AHE已被观察到只有高于270 K，而矫顽力是约300 Oe和温度无关。其次，我们得到了依赖于温度和角度的拓扑霍尔效应，它可能来源于真实的空间拓扑自旋织构。第三，从随角度变化的AHE中提取的磁化率与Stoner-Wohlfarth模型很好地拟合，该模型反映了畴壁和磁各向异性的演化。这表明不仅动量空间的拓扑结构，而且真实的空间拓扑自旋织构对Mn 3Sn的反常输运性质起着重要的作用.手性反铁磁（AFM）Weyl半金属Mn 3Sn在室温附近表现出很大的反常霍尔效应（AHE），这是由于电子色散中Weyl节点产生的Berry曲率引起的。在这里，我们研究的温度和角度依赖的霍尔效应和磁性测量在单晶Mn 3Sn。有一些有趣的现象：第一，一个大的滞后型AHE已被观察到只有高于270 K，而矫顽力是约300 Oe和温度无关。其次，我们得到了依赖于温度和角度的拓扑霍尔效应，它可能来源于真实的空间拓扑自旋织构。第三，从随角度变化的AHE中提取的磁化率与Stoner-Wohlfarth模型很好地拟合，该模型反映了畴壁和磁各向异性的演化。这表明不仅动量空间的拓扑结构，而且真实的空间拓扑自旋织构对Mn 3Sn的反常输运性质起着重要的作用.我们的工作
Chiral antiferromagnetic (AFM) Weyl semimetal Mn3Sn shows a large anomalous Hall effect (AHE) around room temperature, due to the Berry curvature generated by Weyl nodes in electronic dispersions. Here, we study the temperature- and angular-dependent Hall effect and magnetic measurement in single-crystalline Mn3Sn. There are some intriguing phenomena: first, a large hysteretic-type AHE has been observed only above 270 K, while the coercivity is around 300 Oe and independent of temperature. Second, the temperature- and angular-dependent topological Hall effect is obtained, which may stem from the real space topological spin texture. Third, the coercivity extracted from the angular-dependent AHE is well fitted with the Stoner-Wohlfarth model, which reflects the evolution of domain walls and magnetic anisotropy. Thus, it shows that not only the topological structure in momentum space but also the real space topological spin texture plays an important role in anomalous transport properties of Mn3Sn. Our work pushes forward to the realization of room temperature AFM spintronics and paves the way toward the possible devices based on the unconventional Hall effect.Chiral antiferromagnetic (AFM) Weyl semimetal Mn3Sn shows a large anomalous Hall effect (AHE) around room temperature, due to the Berry curvature generated by Weyl nodes in electronic dispersions. Here, we study the temperature- and angular-dependent Hall effect and magnetic measurement in single-crystalline Mn3Sn. There are some intriguing phenomena: first, a large hysteretic-type AHE has been observed only above 270 K, while the coercivity is around 300 Oe and independent of temperature. Second, the temperature- and angular-dependent topological Hall effect is obtained, which may stem from the real space topological spin texture. Third, the coercivity extracted from the angular-dependent AHE is well fitted with the Stoner-Wohlfarth model, which reflects the evolution of domain walls and magnetic anisotropy. Thus, it shows that not only the topological structure in momentum space but also the real space topological spin texture plays an important role in anomalous transport properties of Mn3Sn. Our work ...
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影响因子：
13.6
作者：
Matsuno J;Ogawa N;Yasuda K;Kagawa F;Koshibae W;Nagaosa N;Tokura Y;Kawasaki M
通讯作者：
Kawasaki M
影响因子：
35
作者：
Higo T;Man H;Gopman DB;Wu L;Koretsune T;van 't Erve OMJ;Kabanov YP;Rees D;Li Y;Suzuki MT;Patankar S;Ikhlas M;Chien CL;Arita R;Shull RD;Orenstein J;Nakatsuji S
通讯作者：
Nakatsuji S
影响因子：
3.7
作者：
A. Husmann;L. Singh
通讯作者：
A. Husmann;L. Singh
影响因子：
3.7
作者：
W. Kim;J. Gruenewald;Taekoo Oh;Sangmo Cheon;Bongju Kim;O. Korneta;Hwanbeom Cho;Daesu Lee;Yoonkoo Kim;Miyoung Kim;Je-Guen Park;Bohm-Jung Yang;A. Seo;T. Noh
通讯作者：
W. Kim;J. Gruenewald;Taekoo Oh;Sangmo Cheon;Bongju Kim;O. Korneta;Hwanbeom Cho;Daesu Lee;Yoonkoo Kim;Miyoung Kim;Je-Guen Park;Bohm-Jung Yang;A. Seo;T. Noh
影响因子：
8.6
作者：
Y. Shiomi;M. Mochizuki;Y. Kaneko;Y. Tokura
通讯作者：
Y. Shiomi;M. Mochizuki;Y. Kaneko;Y. Tokura