تقرير
Magnetic order and spin excitations in layered Heisenberg antiferromagnets with compass-model anisotropies
| العنوان: | Magnetic order and spin excitations in layered Heisenberg antiferromagnets with compass-model anisotropies |
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| المؤلفون: | Vladimirov, A. A., Ihle, D., Plakida, N. M. |
| المصدر: | JETP Letters 100, 780 (2014) |
| سنة النشر: | 2014 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons |
| الوصف: | The spin-wave excitation spectrum, the magnetization, and the N\'{e}el temperature for the quasi-two-dimensional spin-1/2 antiferromagnetic Heisenberg model with compass-model interaction in the plane proposed for iridates are calculated in the random phase approximation. The spin-wave spectrum agrees well with data of Lanczos diagonalization. We find that the Neel temperature is enhanced by the compass-model interaction and is close to the experimental value for Ba2IrO4. Comment: 6 pages, 6 figures, 4 references and one figure are added in the second version |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1134/S0021364014240163 |
| URL الوصول: | http://arxiv.org/abs/1411.3920 |
| رقم الأكسشن: | edsarx.1411.3920 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1134/S0021364014240163 |
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