تقرير
Field-Tuned Quantum Effects in a Triangular-Lattice Ising Magnet
| العنوان: | Field-Tuned Quantum Effects in a Triangular-Lattice Ising Magnet |
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| المؤلفون: | Qin, Yayuan, Shen, Yao, Liu, Changle, Wo, Hongliang, Gao, Yonghao, Feng, Yu, Zhang, Xiaowen, Ding, Gaofeng, Gu, Yiqing, Wang, Qisi, Shen, Shoudong, Walker, Helen C., Bewley, Robert, Xu, Jianhui, Boehm, Martin, Steffens, Paul, Ohira-Kawamura, Seiko, Murai, Naoki, Schneidewind, Astrid, Tong, Xin, Chen, Gang, Zhao, Jun |
| المصدر: | Science Bulletin 67, 38-44 (2022) |
| سنة النشر: | 2020 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Materials Science |
| الوصف: | We report thermodynamic and neutron scattering measurements of the triangular-lattice quantum Ising magnet TmMgGaO 4 in longitudinal magnetic fields. Our experiments reveal a quasi-plateau state induced by quantum fluctuations. This state exhibits an unconventional non-monotonic field and temperature dependence of the magnetic order and excitation gap. In the high field regime where the quantum fluctuations are largely suppressed, we observed a disordered state with coherent magnon-like excitations despite the suppression of the spin excitation intensity. Through detailed semi-classical calculations, we are able to understand these behaviors quantitatively from the subtle competition between quantum fluctuations and frustrated Ising interactions. Comment: Published version |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.scib.2021.08.012 |
| URL الوصول: | http://arxiv.org/abs/2011.09376 |
| رقم الأكسشن: | edsarx.2011.09376 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.scib.2021.08.012 |
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