Academic Journal
Strain‐driven Switching Between Antiferromagnetic States in Frustrated Antiferromagnet UO2 Probed by Exchange Bias Effect
| العنوان: | Strain‐driven Switching Between Antiferromagnetic States in Frustrated Antiferromagnet UO2 Probed by Exchange Bias Effect |
|---|---|
| المؤلفون: | Tereshina-Chitrova, Evgenia, Pourovskii, Leonid, Khmelevskyi, Sergii, Horak, Lukas, Bao, Zhaohui, Mackova, Anna, Malinsky, Petr, Gouder, Thomas, Caciuffo, Roberto |
| المساهمون: | Institute of Physics Czech Academy of Sciences Prague 18200, Centre de Physique Théorique (CPHT), École polytechnique (X), Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National de la Recherche Scientifique (CNRS), Collège de France - Chaire Physique de la matière condensée (A. Georges), Collège de France (CdF (institution)), Vienna Technical University Wiedner Hauptstrasse 8–10, Vienna 1040, Univerzita Karlova Praha, Česká republika = Charles University Prague, Czech Republic (UK), Laboratoire national des champs magnétiques intenses - Grenoble (LNCMI-G), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Nuclear Physics Institute Prague, Czech Academy of Sciences Prague (CAS), European Commission - Joint Research Centre Karlsruhe (JRC) |
| المصدر: | ISSN: 1616-301X. |
| بيانات النشر: | HAL CCSD Wiley |
| سنة النشر: | 2024 |
| المجموعة: | Université Toulouse III - Paul Sabatier: HAL-UPS |
| مصطلحات موضوعية: | [PHYS.COND.CM-SCE]Physics [physics]/Condensed Matter [cond-mat]/Strongly Correlated Electrons [cond-mat.str-el], [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] |
| الوصف: | International audience ; Frustrated antiferromagnets offer a captivating platform to study the intricate relationship of magnetic interactions, geometric constraints, and emergent phenomena. By controlling spin orientations, these materials can be tailored for applications in spintronics and quantum information processing. The research focuses on the interplay of magnetic and exchange anisotropy effects in artificial heterostructures based on a canonical frustrated antiferromagnet, UO 2 . The potential to manipulate the spin directions in this material and switch between distinct antiferromagnetic (AFM) states is investigated using substrate‐induced strain. The phenomenon is probed using exchange bias effects in stoichiometric UO 2 /Fe 3 O 4 bilayers. By employing many‐body first‐principles calculations magnetic configurations in the UO 2 layers are identified. Even a minor tetragonal distortion triggers a transition between AFM states of different symmetries, driven by a robust alteration of single‐ion anisotropy due to the distortion. Consequently, this change influences the arrangement of magnetic moments at the UO 2 /Fe 3 O 4 interface, affecting the magnitude of exchange bias. The findings showcase how epitaxial strain can effectively manipulate the AFM states in frustrated antiferromagnets by controlling single‐site anisotropy. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1002/adfm.202311895 |
| الاتاحة: | https://hal.science/hal-04452770 https://hal.science/hal-04452770v1/document https://hal.science/hal-04452770v1/file/2310.15696.pdf https://doi.org/10.1002/adfm.202311895 |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.1BA07FE6 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/adfm.202311895 |
|---|