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Title: 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 H s 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 H s ≃ 240 mT of a clean Nb up to H s ≃ 290 mT. Optimized multilayers of Nb 3Sn, 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:
 [1]
  1. Old Dominion Univ., Norfolk, VA (United States)
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 Volume: 5; Journal Issue: 1; Journal ID: ISSN 2158-3226
Publisher:
American Institute of Physics (AIP)
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. doi:10.1063/1.4905711.
Gurevich, Alex. Wed . "Maximum screening fields of superconducting multilayer structures". United States. doi: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 = {2015},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1063/1.4905711

Citation Metrics:
Cited by: 9 works
Citation information provided by
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