تقرير
Signature of point nodal superconductivity in the Dirac semimetal PdTe
| العنوان: | Signature of point nodal superconductivity in the Dirac semimetal PdTe |
|---|---|
| المؤلفون: | Yadav, C. S., Ghosh, Sudeep Kumar, Kumar, Pankaj, Thamizhavel, A., Paulose, P. L. |
| المصدر: | Phys. Rev. B 110, 054515 (2024) |
| سنة النشر: | 2024 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity, Condensed Matter - Materials Science, Condensed Matter - Strongly Correlated Electrons |
| الوصف: | Recent Angle-Resolved Photo-emission Spectroscopy (ARPES) experiments [Phys. Rev. Lett. 130, 046402 (2023)] on PdTe, a 3D-Dirac semimetal and a superconductor with the transition temperature Tc ~ 4.3 K, have revealed compelling evidence of the presence of bulk nodes in the superconducting order parameter. To investigate the validity of this proposition, here we present a detailed investigation of the magnetic field dependence of the specific heat of PdTe down to temperatures ~ 58 mK. We observed that the low temperature specific heat of PdTe with an externally applied magnetic field exhibits a power-law field dependence, a characteristic of unconventional superconductivity. Furthermore, the zero-field low-temperature electronic specific heat follows a cubic temperature dependence, which is a signature of the presence of bulk point nodes in PdTe. These intriguing observations suggest that PdTe is a rare and fascinating topological material that exhibits both Dirac semimetallic properties and superconductivity with point nodal gap symmetry. Comment: 7 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.110.054515 |
| URL الوصول: | http://arxiv.org/abs/2408.00216 |
| رقم الأكسشن: | edsarx.2408.00216 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.110.054515 |
|---|