Controlled large non-reciprocal charge transport in an intrinsic magnetic topological insulator MnBi(2)Te(4).
Controlled large non-reciprocal charge transport in an intrinsic magnetic topological insulator MnBi(2)Te(4).
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DOI：
10.1038/s41467-022-33705-y
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发表时间：
2022-10-19
影响因子：
16.6
通讯作者：
中科院分区：
文献类型：
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对称性、量子几何和电子关联是凝聚态物质最重要的组成部分，并导致实验中的非平凡现象，例如非互易电荷输运。特别令人感兴趣的是，非互惠运输是否可以被操纵。在这里，我们报告的可控大非互易电荷输运的内禀磁性拓扑绝缘体MnBi2Te4。在手性边缘观察到电流方向相关电阻，其是磁性可切换的，边缘位置敏感的和堆叠顺序可控的。施加栅极电压也可以有效地操纵非互易响应。非互易电荷输运的观测和调控揭示了手性在MnBi2Te4电荷输运中的根本作用，为利用手性工程开发货车德瓦尔斯自旋电子器件奠定了基础.非互易电荷传输是指正负电流之间的不同电阻，并且在各种应用中是基本的，例如，电流整流。一些材料表现出固有的非互易传输，但操纵这可能是具有挑战性的。在这里，作者证明了大的非互易运输，可以切换磁性，堆叠依赖，并可以通过施加的栅极电压进行调谐。
Symmetries, quantum geometries and electronic correlations are among the most important ingredients of condensed matters, and lead to nontrivial phenomena in experiments, for example, non-reciprocal charge transport. Of particular interest is whether the non-reciprocal transport can be manipulated. Here, we report the controllable large non-reciprocal charge transport in the intrinsic magnetic topological insulator MnBi2Te4. The current direction relevant resistance is observed at chiral edges, which is magnetically switchable, edge position sensitive and stacking sequence controllable. Applying gate voltage can also effectively manipulate the non-reciprocal response. The observation and manipulation of non-reciprocal charge transport reveals the fundamental role of chirality in charge transport of MnBi2Te4, and pave ways to develop van der Waals spintronic devices by chirality engineering. Non-reciprocal charge transport refers to the different resistance between positive and negative current, and is fundamental in a variety of applications, for instance, current rectification. Some materials exhibit intrinsic nonreciprocal transport, but manipulation of this can be challenging. Here, the authors demonstrate large non-reciprocal transport which can be switched magnetically, is stacking dependent, and can be tuned via an applied gate voltage.
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影响因子：
16.6
作者：
Qin F;Shi W;Ideue T;Yoshida M;Zak A;Tenne R;Kikitsu T;Inoue D;Hashizume D;Iwasa Y
通讯作者：
Iwasa Y
影响因子：
16.6
作者：
Li Y;Leveau A;Zhao Q;Feng Q;Lu H;Miao J;Xue Z;Martin AC;Wegel E;Wang J;Orme A;Rey MD;Karafiátová M;Vrána J;Steuernagel B;Joynson R;Owen C;Reed J;Louveau T;Stephenson MJ;Zhang L;Huang X;Huang T;Fan D;Zhou C;Tian Q;Li W;Lu Y;Chen J;Zhao Y;Lu Y;Zhu C;Liu Z;Polturak G;Casson R;Hill L;Moore G;Melton R;Hall N;Wulff BBH;Doležel J;Langdon T;Han B;Osbourn A
通讯作者：
Osbourn A
影响因子：
13.6
作者：
Wakatsuki R;Saito Y;Hoshino S;Itahashi YM;Ideue T;Ezawa M;Iwasa Y;Nagaosa N
通讯作者：
Nagaosa N
影响因子：
16.6
作者：
Tokura Y;Nagaosa N
通讯作者：
Nagaosa N
影响因子：
8.6
作者：
He, Pan;Walker, S. McKeown;Yang, Hyunsoo
通讯作者：
Yang, Hyunsoo