تقرير
Piezo-superconductivity: new effects in non-centrosymmetric superconductors
| العنوان: | Piezo-superconductivity: new effects in non-centrosymmetric superconductors |
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| المؤلفون: | Kapustin, Anton, Radzihovsky, Leo |
| المصدر: | Phys. Rev. B 105, 134514 (2022) |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity |
| الوصف: | We study novel effects in non-centrosymmetric superconductors arising from their unique coupling of Cooper-pair condensate and elasticity. We show that although the much discussed Lifshitz coupling is not observable in a uniform bulk state, it strikingly endows dislocations with a fractional magnetic flux. We also predict a generation of voltage-free strain by a DC current in a P and T-breaking Josephson junction. Viewing superconductors through the lens of higher-form symmetries we identify the Lifshitz coupling as a chemical potential for the approximately conserved winding number, drawing an analogy with pyroelectric insulators. Comment: 10 pages; a clarification on effects in a vortex lattice |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.105.134514 |
| URL الوصول: | http://arxiv.org/abs/2201.06583 |
| رقم الأكسشن: | edsarx.2201.06583 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.105.134514 |
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