Please use this identifier to cite or link to this item:
http://doi.org/10.25358/openscience-106| Authors: | Richter, Nils Weber, Daniel Martin, Franziska Singh, Nirpendra Schwingenschlögl, Udo Lotsch, Bettina V. Kläui, Mathias |
| Title: | Temperature-dependent magnetic anisotropy in the layered magnetic semiconductors CrI3 and CrBr3 |
| Online publication date: | 26-Aug-2019 |
| Language: | english |
| Abstract: | Chromium trihalides are layered and exfoliable semiconductors and exhibit unusual magnetic properties with a surprising temperature dependence of the magnetization. By analyzing the evolution of the magnetocrystalline anisotropy with temperature in chromium iodide CrI3, we find it strongly changes from K-u = 300 +/- 50 kJ/m(3) at 5 K to Ku = 43 +/- 7 kJ/m(3) at 60 K, close to the Curie temperature. We draw a direct comparison to CrBr3, which serves as a reference, and where we find results consistent with literature. In particular, we show that the anisotropy change in the iodide compound is more than 3 times larger than in the bromide. We analyze this temperature dependence using a classical model, showing that the anisotropy constant scales with the magnetization at any given temperature below the Curie temperature, indicating that the temperature dependence can be explained by a dominant uniaxial anisotropy where this scaling results from local spin clusters having thermally induced magnetization directions that deviate from the overall magnetization. |
| DDC: | 530 Physik 530 Physics |
| Institution: | Johannes Gutenberg-Universität Mainz |
| Department: | FB 08 Physik, Mathematik u. Informatik |
| Place: | Mainz |
| ROR: | https://ror.org/023b0x485 |
| DOI: | http://doi.org/10.25358/openscience-106 |
| URN: | urn:nbn:de:hebis:77-publ-592110 |
| Version: | Accepted version |
| Publication type: | Zeitschriftenaufsatz |
| License: | In Copyright |
| Information on rights of use: | https://rightsstatements.org/vocab/InC/1.0/ |
| Journal: | Physical review materials 2 2 |
| Pages or article number: | 024004-1 024004-6 |
| Publisher: | APS |
| Publisher place: | College Park, Md. |
| Issue date: | 2018 |
| ISSN: | 2475-9953 |
| Publisher URL: | http://dx.doi.org/10.1103/PhysRevMaterials.2.024004 |
| Publisher DOI: | 10.1103/PhysRevMaterials.2.024004 |
| Appears in collections: | JGU-Publikationen |
