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| DOI | 10.1103/PHYSREVMATERIALS.8.054407 | ||||
| Año | 2024 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Vanadium sesquioxide (V2O3) is a strongly correlated electronic material that famously undergoes a triple coupled first-order transition where it transitions from a paramagnetic metal with a rhombohedral structure at high temperature to an antiferromagnetic insulator with a monoclinic structure. While several studies have used one of both electronic and structural transitions to control the properties of a heterostructure, evidence of magnetic coupling has notoriously yet to be found. In this paper, we report on a robust magnetic coupling between the antiferromagnetic (AFM) V2O3 and ferromagnetic (FM) Permalloy (Py) layers that results in a significant exchange bias and strain-induced coercivity enhancement. We provide a temperature and angle-dependent study of magnetic properties, which clearly indicates exchange bias at the AFM/FM interface that appears at the onset of the metal-insulator transition. The magnitude of the exchange bias is strongest when the field is applied along the [001] V2O3 crystallographic orientation which corresponds to an AFM spin configuration on the [110] surface. This opens the door to designing and implementing novel functionalities in transition metal oxide-based computing using the connection between magnetism and the metal-insulator transition.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | El Hage, Ralph | - |
Center for Advanced Nanoscience - Estados Unidos
Univ Calif San Diego - Estados Unidos |
| 2 | Wang, Tianxing D. | - |
Center for Advanced Nanoscience - Estados Unidos
University of California, San Diego - Estados Unidos Univ Calif San Diego - Estados Unidos |
| 3 | Li, Junjie | - |
Center for Advanced Nanoscience - Estados Unidos
University of California, San Diego - Estados Unidos Univ Calif San Diego - Estados Unidos |
| 4 | Basaran, Ali C. | Hombre |
Center for Advanced Nanoscience - Estados Unidos
Univ Calif San Diego - Estados Unidos |
| 5 | TORRES-SANCHEZ, FELIPE ESTEBAN | Hombre |
Universidad de Chile - Chile
Centro para el Desarrollo de la Nanociencia y la Nanotecnologia - Chile |
| 6 | Schuller, Ivan K. | Hombre |
Center for Advanced Nanoscience - Estados Unidos
Univ Calif San Diego - Estados Unidos |
| Fuente |
|---|
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| U.S. Department of Energy |
| Office of Science |
| Agencia Nacional de Investigación y Desarrollo |
| U.S. Department of Energy (DOE), Office of Science |
| ANID, CHILE, FONDECYT |
| Agradecimiento |
|---|
| Work was supported by U.S. Department of Energy (DOE), Office of Science, Grant No. DE-FG02-87ER45332 and ANID, CHILE, FONDECYT, Project No. 1211902. |
| Work was supported by U.S. Department of Energy (DOE), Office of Science, Grant No. DE-FG02-87ER45332 and ANID, CHILE, FONDECYT, Project No. 1211902. |