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Strain-stabilized superconductivity
- Source :
- Nature Communications 12, 59 (2021)
- Publication Year :
- 2020
-
Abstract
- Superconductivity is among the most fascinating and well-studied quantum states of matter. Despite over 100 years of research, a detailed understanding of how features of the normal-state electronic structure determine superconducting properties has remained elusive. For instance, the ability to deterministically enhance the superconducting transition temperature by design, rather than by serendipity, has been a long sought-after goal in condensed matter physics and materials science, but achieving this objective may require new tools, techniques and approaches. Here, we report the first instance of the transmutation of a normal metal into a superconductor through the application of epitaxial strain. We demonstrate that synthesizing RuO$_{2}$ thin films on (110)-oriented TiO$_{2}$ substrates enhances the density of states near the Fermi level, which stabilizes superconductivity under strain, and suggests that a promising strategy to create new transition-metal superconductors is to apply judiciously chosen anisotropic strains that redistribute carriers within the low-energy manifold of $d$ orbitals.<br />Comment: 30 pages, 20 figures (including supplemental information)
- Subjects :
- Condensed Matter - Superconductivity
Condensed Matter - Materials Science
Subjects
Details
- Database :
- arXiv
- Journal :
- Nature Communications 12, 59 (2021)
- Publication Type :
- Report
- Accession number :
- edsarx.2005.06543
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1038/s41467-020-20252-7