Academic Journal
Quantum skyrmion lattices in Heisenberg ferromagnets
| العنوان: | Quantum skyrmion lattices in Heisenberg ferromagnets |
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| المؤلفون: | Andreas Haller, Solofo Groenendijk, Alireza Habibi, Andreas Michels, Thomas L. Schmidt |
| المصدر: | Physical Review Research, Vol 4, Iss 4, p 043113 (2022) |
| بيانات النشر: | American Physical Society |
| سنة النشر: | 2022 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | Physics, QC1-999 |
| الوصف: | Skyrmions are topological magnetic textures that can arise in noncentrosymmetric ferromagnetic materials. In most systems experimentally investigated to date, skyrmions emerge as classical objects. However, the discovery of skyrmions with nanometer length scales has sparked interest in their quantum properties. Here, we simulate the ground states of two-dimensional spin-1/2 Heisenberg lattices with Dzyaloshinskii-Moriya interactions and discover a broad region in the zero-temperature phase diagram which hosts quantum skyrmion lattices. We argue that the quantum skyrmion lattice phase can be detected experimentally in the magnetization profile via local magnetic polarization measurements as well as in the spin structure factor measurable via neutron scattering experiments. Finally, we explore the resulting quantum skyrmion state, analyze its real-space polarization profile and show that it is a nonclassical state featuring entanglement between quasiparticle and environment mainly localized near the boundary spins of the skyrmion. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2643-1564 |
| Relation: | http://doi.org/10.1103/PhysRevResearch.4.043113; https://doaj.org/toc/2643-1564; https://doaj.org/article/da16ba7b706b4219933aa632546399c0 |
| DOI: | 10.1103/PhysRevResearch.4.043113 |
| الاتاحة: | https://doi.org/10.1103/PhysRevResearch.4.043113 https://doaj.org/article/da16ba7b706b4219933aa632546399c0 |
| رقم الانضمام: | edsbas.BDD540CA |
| قاعدة البيانات: | BASE |
| تدمد: | 26431564 |
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| DOI: | 10.1103/PhysRevResearch.4.043113 |