guest ::
| Home > Publications database > Control of the asymmetric band structure in Mn$_2$Au by a ferromagnetic driver layer |
| Home > Publications database > Control of the asymmetric band structure in Mn$_2$Au by a ferromagnetic driver layer |
| Journal Article | PUBDB-2024-01786 |
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
2023
APS
Woodbury, NY
This record in other databases: 
Please use a persistent id in citations: doi:10.1103/PhysRevB.108.104413 doi:10.3204/PUBDB-2024-01786
Abstract: Hard x-ray angle-resolved photoemission spectroscopy reveals the momentum-resolved band structure in an epitaxial Mn$_2$Au(001) film capped by a 2-nm-thick ferromagnetic permalloy layer. By magnetizing the permalloy capping layer, the exceptionally strong exchange bias aligns the Néel vector in the Mn$_2$Au(001) film accordingly. Uncompensated interface Mn magnetic moments in Mn$_2$Au were identified as the origin of the exchange bias using x-ray magnetic circular dichroism in combination with photoelectron emission microscopy. Using time-of-flight momentum microscopy, we measure the asymmetry of the band structure, E(k)≠E(−k), in Mn$_2$Au resulting from the homogeneous orientation of the Néel vector. Comparison with theory shows that the Néel vector, determined by the magnetic moment of the top Mn layer, is antiparallel to the permalloy magnetization. The experimental results demonstrate that hard x-ray photoemission spectroscopy can measure the band structure of epitaxial layers beneath a metallic capping layer and corroborate the asymmetric band structure in Mn$_2$Au that was previously inferred only indirectly.
; 
; 
; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection
|
The record appears in these collections: |
PDF
PDF (PDFA)