Publication details
Single-crystal studies and electronic structure investigation of the room-temperature semiconductor NaMnAs
| Authors | |
|---|---|
| Year of publication | 2022 |
| Type | Article in Periodical |
| Magazine / Source | Physical Review B |
| MU Faculty or unit | |
| Citation | |
| Web | |
| Doi | http://dx.doi.org/10.1103/PhysRevB.105.125204 |
| Keywords | Antiferromagnetism; Crystal growth; Crystal structure; Density of states; Exchange interaction; Magnetic anisotropy; Magnetic semiconductors; Semiconductors |
| Description | 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 Néel temperature was determined from temperature dependence of susceptibility, in agreement with our Monte Carlo simulations. |
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