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Néel Vector Induced Manipulation of Valence States in the Collinear Antiferromagnet Mn2Au
ACS Nano ( IF 15.8 ) Pub Date : 2020-11-25 , DOI: 10.1021/acsnano.0c08215 H. J. Elmers 1 , S. V. Chernov 1 , S. W. D’Souza 2 , S. P. Bommanaboyena 1 , S. Yu. Bodnar 1 , K. Medjanik 1 , S. Babenkov 1 , O. Fedchenko 1 , D. Vasilyev 1 , S. Y. Agustsson 1 , C. Schlueter 3 , A. Gloskovskii 3 , Yu. Matveyev 3 , V. N. Strocov 4 , Y. Skourski 5 , L. Šmejkal 1, 6 , J. Sinova 1, 6 , J. Minár 2 , M. Kläui 1 , G. Schönhense 1 , M. Jourdan 1
ACS Nano ( IF 15.8 ) Pub Date : 2020-11-25 , DOI: 10.1021/acsnano.0c08215 H. J. Elmers 1 , S. V. Chernov 1 , S. W. D’Souza 2 , S. P. Bommanaboyena 1 , S. Yu. Bodnar 1 , K. Medjanik 1 , S. Babenkov 1 , O. Fedchenko 1 , D. Vasilyev 1 , S. Y. Agustsson 1 , C. Schlueter 3 , A. Gloskovskii 3 , Yu. Matveyev 3 , V. N. Strocov 4 , Y. Skourski 5 , L. Šmejkal 1, 6 , J. Sinova 1, 6 , J. Minár 2 , M. Kläui 1 , G. Schönhense 1 , M. Jourdan 1
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The coupling of real and momentum space is utilized to tailor electronic properties of the collinear metallic antiferromagnet Mn2Au by aligning the real space Néel vector indicating the direction of the staggered magnetization. Pulsed magnetic fields of 60 T were used to orient the sublattice magnetizations of capped epitaxial Mn2Au(001) thin films perpendicular to the applied field direction by a spin-flop transition. The electronic structure and its corresponding changes were investigated by angular-resolved photoemission spectroscopy with photon energies in the vacuum-ultraviolet, soft, and hard X-ray range. The results reveal an energetic rearrangement of conduction electrons propagating perpendicular to the Néel vector. They confirm previous predictions on the origin of the Néel spin–orbit torque and anisotropic magnetoresistance in Mn2Au and reflect the combined antiferromagnetic and spin–orbit interaction in this compound leading to inversion symmetry breaking.
中文翻译：
Néel矢量诱导共线反铁磁体Mn 2 Au中的价态操纵
通过对齐指示交错磁化方向的实际空间Néel向量，利用实际空间和动量空间的耦合来调整共线金属反铁磁体Mn 2 Au的电子特性。60 T的脉冲磁场用于确定封端外延Mn 2的亚晶格磁化方向通过自旋跃迁转变垂直于所施加场方向的Au（001）薄膜。通过角分辨光发射光谱法研究了电子结构及其相应的变化，该光谱采用真空紫外，软X射线和硬X射线范围内的光子能量。结果揭示了垂直于Néel向量传播的导电电子的高能重排。他们证实了先前对Mn 2 Au中Néel自旋轨道转矩和各向异性磁阻起源的预测，并反映了该化合物中反铁磁和自旋轨道相互作用的组合，从而导致反对称对称性破坏。
更新日期：2020-12-22
中文翻译：
Néel矢量诱导共线反铁磁体Mn 2 Au中的价态操纵
通过对齐指示交错磁化方向的实际空间Néel向量，利用实际空间和动量空间的耦合来调整共线金属反铁磁体Mn 2 Au的电子特性。60 T的脉冲磁场用于确定封端外延Mn 2的亚晶格磁化方向通过自旋跃迁转变垂直于所施加场方向的Au（001）薄膜。通过角分辨光发射光谱法研究了电子结构及其相应的变化，该光谱采用真空紫外，软X射线和硬X射线范围内的光子能量。结果揭示了垂直于Néel向量传播的导电电子的高能重排。他们证实了先前对Mn 2 Au中Néel自旋轨道转矩和各向异性磁阻起源的预测，并反映了该化合物中反铁磁和自旋轨道相互作用的组合，从而导致反对称对称性破坏。
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