تقرير
Thermomagnetic Anomalies by Magnonic Criticality in Ultracold Atomic Transport
| العنوان: | Thermomagnetic Anomalies by Magnonic Criticality in Ultracold Atomic Transport |
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| المؤلفون: | Sekino, Yuta, Ominato, Yuya, Tajima, Hiroyuki, Uchino, Shun, Matsuo, Mamoru |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Quantum Gases, Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | We investigate thermomagnetic transport in an ultracold atomic system with two ferromagnets linked via a magnetic quantum point contact. Using nonequilibrium Green's function approach, we show a divergence in spin conductance and a slowing down of spin relaxation that manifest in the weak effective-Zeeman-field limit. These anomalous spin dynamics result from the magnonic critical point at which magnons become gapless due to spontaneous magnetization. Our findings unveil untapped dynamics in ultracold atomic systems, opening new avenues in thermomagnetism. Comment: 13 pages, 5 figures |
| نوع الوثيقة: | Working Paper |
| الوصول الحر: | http://arxiv.org/abs/2312.04280Test |
| رقم الانضمام: | edsarx.2312.04280 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |