Title: | Single-crystal studies and electronic structure investigation of the room-temperature semiconductor NaMnAs |
Authors: | Volný, Jiří Charvátová, Kateřina Veis, Martin Holý, Václav Vondráček, Martin Honolka, Jan Duverger-Nédellec, Elen Schusser, Jakub Dsouza, Sunil Wilfred Minár, Jan Pientka, James M. Marmodoro, Alberto Výborný, Karel Uhlířová, Klára |
Citation: | VOLNÝ, J. CHARVÁTOVÁ, K. VEIS, M. HOLÝ, V. VONDRÁČEK, M. HONOLKA, J. DUVERGER-NÉDELLEC, E. SCHUSSER, J. DSOUZA, SW. MINÁR, J. PIENTKA, JM. MARMODORO, A. VÝBORNÝ, K. UHLÍŘOVÁ, K. Single-crystal studies and electronic structure investigation of the room-temperature semiconductor NaMnAs. Physical Review B, 2022, roč. 105, č. 12, s. nestránkováno. ISSN: 2469-9950 |
Issue Date: | 2022 |
Publisher: | American Physical Society |
Document type: | článek article |
URI: | 2-s2.0-85127866768 http://hdl.handle.net/11025/51486 |
ISSN: | 2469-9950 |
Keywords in different language: | X-ray photoemission;ternary compounds;spectra;manganese;elements;sodium |
Abstract in different language: | Synthesis of single-crystalline NaMnAs is reported, and we confirm its high quality by x-ray photoemission spectra. Magnetometry results are consistent with previous findings of antiferromagnetic order. The electronic structure was further studied using optical transmittance and by theoretical modeling using local-density approximation (LDA) extended to LDA + U for the purpose of determining the Heisenberg model parameters. Optical transmittance measurements confirm theoretical predictions that NaMnAs is a semiconductor. The Neel temperature was determined from temperature dependence of susceptibility, in agreement with our Monte Carlo simulations. |
Rights: | Plný text není přístupný. ©2022 American Physical Society |
Appears in Collections: | Články / Articles (RAM) OBD |
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VCV+22_NaMnAs_Uhlirova_Vyborny.pdf | 1,95 MB | Adobe PDF | View/Open Request a copy |
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