| Autor: |
Gesa-R. Siemann, Seo-Jin Kim, Edgar Abarca Morales, Philip A. E. Murgatroyd, Andela Zivanovic, Brendan Edwards, Igor Marković, Federico Mazzola, Liam Trzaska, Oliver J. Clark, Chiara Bigi, Haijing Zhang, Barat Achinuq, Thorsten Hesjedal, Matthew D. Watson, Timur K. Kim, Peter Bencok, Gerrit van der Laan, Craig M. Polley, Mats Leandersson, Hanna Fedderwitz, Khadiza Ali, Thiagarajan Balasubramanian, Marcus Schmidt, Michael Baenitz, Helge Rosner, Phil D. C. King |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
npj Quantum Materials, Vol 8, Iss 1, Pp 1-7 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2397-4648 |
| DOI: |
10.1038/s41535-023-00593-4 |
| Popis: |
Abstract In half-metallic systems, electronic conduction is mediated by a single spin species, offering enormous potential for spintronic devices. Here, using microscopic-area angle-resolved photoemission, we show that a spin-polarised two-dimensional hole gas is naturally realised in the polar magnetic semiconductor AgCrSe2 by an intrinsic self-doping at its CrSe2-terminated surface. Through comparison with first-principles calculations, we unveil a striking role of spin-orbit coupling for the surface hole gas, unlocked by both bulk and surface inversion symmetry breaking, suggesting routes for stabilising complex magnetic textures in the surface layer of AgCrSe2. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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