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Publication Information
Title Effect of metamaterial engineering on the superconductive properties of ultrathin layers of NbTiN
Abstract The electronic transport and optical properties of high quality multilayers of NbTiN/AlN with ultrathin NbTiN layers were characterized. The anisotropy of the dielectric function of the multilayers confirmed their hyperbolic metamaterial properties. The superconductive transition temperature, Tc, of these engineered superconductors was enhanced up to 32% compared to the Tc of a single ultrathin NbTiN layer. We have demonstrated that this Tc increase can be attributed to enhanced electron-electron interaction in superconducting hyperbolic metamaterials. The measured critical fields are high and have an anomalous temperature dependence in the perpendicular to the magnetic field direction.
Author(s) Vera Smolyaninova, William Korzi, Grace Yong, Anne-Marie Valente , David Beverstock , Joseph Prestigiacomo, Michael Osofsky, Igor Smolyaninov
Publication Date August 2021
Category SRF Technology
Document Type Journal Article
Primary Institution Thomas Jefferson National Accelerator Facility, Newport News
Affiliation Accelerator Ops, R&D / Inst for SRF Sci & Tech / SRF Research & Dev
Funding Source Nuclear Physics (NP), DARPA Award No: W911NF-17-1-0348, ONR
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-ACC-21-3392 OSTI Number: 1819087
LANL Number: Other Number: DOE/OR/23177-5211
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Journal Article
Journal Name Journal of Applied Physics
Refereed Yes
Volume 130
Issue 7
Page(s) 073901
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