تقرير
Superfluid response of two-dimensional filamentary superconductors
| العنوان: | Superfluid response of two-dimensional filamentary superconductors |
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| المؤلفون: | Venditti, Giulia, Maccari, Ilaria, Jouan, Alexis, Singh, Gyanendra, Budhani, Ramesh C., Feuillet-Palma, Cheryl, Lesueur, Jérôme, Bergeal, Nicolas, Caprara, Sergio, Grilli, Marco |
| المصدر: | SciPost Phys. 15, 239 (2023) |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity |
| الوصف: | Different classes of low-dimensional superconducting systems exhibit an inhomogeneous filamentary superconducting condensate whose macroscopic coherence still needs to be fully investigated and understood. Here we present a thorough analysis of the superfluid response of a prototypical filamentary superconductor embedded in a {two-dimensional} metallic matrix. By mapping the system into an exactly solvable random impedance network, we show how the dissipative (reactive) response of the system non-trivially depends on both the macroscopic and microscopic characteristics of the metallic (superconducting) fraction. We compare our calculations with resonant-microwave transport measurements performed on LaAlO$_3$/SrTiO$_3$ heterostructures over an extended range of temperatures and carrier densities finding that the filamentary character of superconductivity accounts for unusual peculiar features of the experimental data. Comment: 22 pages, 7 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.21468/SciPostPhys.15.6.239 |
| URL الوصول: | http://arxiv.org/abs/2304.07117 |
| رقم الأكسشن: | edsarx.2304.07117 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.21468/SciPostPhys.15.6.239 |
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