| Title: | Elektrónová a pásová štruktúra CuMnAs študovaná optickou a fotoemissinou spektroskopiou Band structure of CuMnAs probed by optical and photoemission spectroscopy |
| Authors: | Veis, Martin Minár, Jan Steciuk, Gwladys Palatinus, Lukáš Rinaldi, Christian Cantoni, Matteo Kriegner, Dominik Tikuišis, Kristupas Kazimieras Hamrle, Jaroslav Zahradník, Martin Antoš, Roman Železný, Jakub Šmejkal, Libor Martí, Xavier Wadley, Peter Campion, Richard P. Frontera, Carlos Uhlířová, Klára Duchoň, Tomáš Kužel, Petr Novák, Vít Jungwirth, Tomáš Výborný, Karel |
| Citation: | VEIS, M., MINÁR, J., STECIUK, G., PALATINUS, L., RINALDI, C., CANTONI, M., KRIEGNER, D., TIKUIŠIS, K. K., HAMRLE, J., ZAHRADNÍK, M., ANTOŠ, R., ŽELEZNÝ, J., ŠMEJKAL, L., MARTÍ, X., WADLEY, P., CAMPION, R. P., FRONTERA, C., UHLÍŘOVÁ, K., DUCHOŇ, T., KUŽEL, P., NOVÁK, V., JUNGWIRTH, T., VÝBORNÝ, K. Band structure of CuMnAs probed by optical and photoemission spectroscopy. Physical Review B, 2018, roč. 97, č. 12, s. nestránkováno. ISSN 2469-9950. |
| Issue Date: | 2018 |
| Publisher: | American Physical Society |
| Document type: | článek article |
| URI: | 2-s2.0-85043986617 http://hdl.handle.net/11025/29763 |
| ISSN: | 2469-9950 |
| Keywords: | Spintronika, DFT, fotoemissia, optické vlastnosti, CuMnAs |
| Keywords in different language: | spintronics, DFT, photoemission, optical properties, CuMnAs |
| Abstract: | Študovali sme tetragonálnu fázu CuMnAs ktorý je kľúčový materiál pre antiforromagnetickú spintroniku. Hlavným výsledkom je porovnanie elektrónovej štruktúry vypočítanej za pomoci LSDA+U s optickou a fotoemissnou spektroskopiou |
| Abstract in different language: | The tetragonal phase of CuMnAs progressively appears as one of the key materials for antiferromagnetic spintronics due to efficient current-induced spin-torques whose existence can be directly inferred from crystal symmetry. Theoretical understanding of spintronic phenomena in this material, however, relies on the detailed knowledge of electronic structure (band structure and corresponding wave functions) which has so far been tested only to a limited extent. We show that AC permittivity (obtained from ellipsometry) and UV photoelectron spectra agree with density functional calculations. Together with the x-ray diffraction and precession electron diffraction tomography, our analysis confirms recent theoretical claim [Phys. Rev. B 96, 094406 (2017)] that copper atoms occupy lattice positions in the basal plane of the tetragonal unit cell. |
| Rights: | © American Physical Society |
| Appears in Collections: | OpenAire Postprinty / Postprints (CTM) OBD |
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|---|---|---|---|
| Minar_VMS+18_CuMnAs_Vyborny_PhysRevB.97.125109.pdf | 705,69 kB | Adobe PDF | View/Open |
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