تقرير
$\varphi$ Josephson junction induced by altermagnetism
| العنوان: | $\varphi$ Josephson junction induced by altermagnetism |
|---|---|
| المؤلفون: | Lu, Bo, Maeda, Kazuki, Ito, Hiroyuki, Yada, Keiji, Tanaka, Yukio |
| سنة النشر: | 2024 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity, Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | We study the Josephson effect in a superconductor/altermagnet/superconductor (S/AM/S) junction. We find anomalous phenomena including $0$-$\pi$ transition as well as multi-nodal current-phase relations. Similar to $d$-wave superconductor, $d$-wave altermagnet can support $\varphi$ junction where free energy minima locate neither $\varphi=0$ nor $\pm \pi$ with double degeneracy. These properties can be tunable by parameters, e.g., the exchange energy, the orientation of crystal axis, the length, and the applied gate voltage of altermagnet. These rich features lead to accessible functionality of S/AM/S junction. Comment: 6 pages, 4 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2405.10656 |
| رقم الأكسشن: | edsarx.2405.10656 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |