Maximum screening fields of superconducting multilayer structures
Abstract
Here, it is shown that a multilayer comprised of alternating thin superconducting and insulating layers on a thick substrate can fully screen the applied magnetic field exceeding the superheating fields Hs of both the superconducting layers and the substrate, the maximum Meissner field is achieved at an optimum multilayer thickness. For instance, a dirty layer of thickness ~0.1 μm at the Nb surface could increase Hs ≃ 240 mT of a clean Nb up to Hs ≃ 290 mT. Optimized multilayers of Nb3Sn, NbN, some of the iron pnictides, or alloyed Nb deposited onto the surface of the Nb resonator cavities could potentially double the rf breakdown field, pushing the peak accelerating electric fields above 100 MV/m while protecting the cavity from dendritic thermomagnetic avalanches caused by local penetration of vortices.
- Authors:
- Publication Date:
- Research Org.:
- Old Dominion Univ., Norfolk, VA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1167048
- Alternate Identifier(s):
- OSTI ID: 1420667; OSTI ID: 1444103
- Grant/Contract Number:
- SC0010081
- Resource Type:
- Published Article
- Journal Name:
- AIP Advances
- Additional Journal Information:
- Journal Name: AIP Advances Journal Volume: 5 Journal Issue: 1; Journal ID: ISSN 2158-3226
- Publisher:
- American Institute of Physics
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Gurevich, Alex. Maximum screening fields of superconducting multilayer structures. United States: N. p., 2015.
Web. doi:10.1063/1.4905711.
Gurevich, Alex. Maximum screening fields of superconducting multilayer structures. United States. https://doi.org/10.1063/1.4905711
Gurevich, Alex. Thu .
"Maximum screening fields of superconducting multilayer structures". United States. https://doi.org/10.1063/1.4905711.
@article{osti_1167048,
title = {Maximum screening fields of superconducting multilayer structures},
author = {Gurevich, Alex},
abstractNote = {Here, it is shown that a multilayer comprised of alternating thin superconducting and insulating layers on a thick substrate can fully screen the applied magnetic field exceeding the superheating fields Hs of both the superconducting layers and the substrate, the maximum Meissner field is achieved at an optimum multilayer thickness. For instance, a dirty layer of thickness ~0.1 μm at the Nb surface could increase Hs ≃ 240 mT of a clean Nb up to Hs ≃ 290 mT. Optimized multilayers of Nb3Sn, NbN, some of the iron pnictides, or alloyed Nb deposited onto the surface of the Nb resonator cavities could potentially double the rf breakdown field, pushing the peak accelerating electric fields above 100 MV/m while protecting the cavity from dendritic thermomagnetic avalanches caused by local penetration of vortices.},
doi = {10.1063/1.4905711},
journal = {AIP Advances},
number = 1,
volume = 5,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2015},
month = {Thu Jan 01 00:00:00 EST 2015}
}
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Cited by: 27 works
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Figures / Tables:
FIG. 1: Distribution of the magnetic field h(x) in a multilayer of thickness d. The dashed lines show thin dielectric layers (di ≪ ds) separating the superconducting layers.
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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.