تقرير
Fully gapped superconductivity without sign reversal in the topological superconductor PbTaSe$_2$
| العنوان: | Fully gapped superconductivity without sign reversal in the topological superconductor PbTaSe$_2$ |
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| المؤلفون: | Sun, Yue, Kittaka, Shunichiro, Sakakibara, Toshiro, Machida, Kazushige, Sankar, R., Xu, Xiaofeng, Zhou, Nan, Xing, Xiangzhuo, Shi, Zhixiang, Pyon, Sunseng, Tamegai, Tsuyoshi |
| المصدر: | Phys. Rev. B 102, 024517 (2020) |
| سنة النشر: | 2020 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity, Condensed Matter - Strongly Correlated Electrons |
| الوصف: | We investigate the superconducting gap function of topological superconductor PbTaSe$_2$. Temperature, magnetic field, and three-dimensional (3D) field-angle dependences of the specific heat prove that the superconductivity of PbTaSe$_2$ is fully-gapped, with two isotropic $s$-wave gaps. The pair-breaking effect is probed by systematically increasing non-magnetic disorders through H$^+$-irradiations. The superconducting transition temperature, $T_{\rm{c}}$, is found to be robust against disorders, which suggests that the pairing should be sign-preserved rather than sign-reversed. Comment: 9 pages, 7 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.102.024517 |
| URL الوصول: | http://arxiv.org/abs/2007.11364 |
| رقم الأكسشن: | edsarx.2007.11364 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.102.024517 |
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