Emergence of Dissipative Structures in Current-Carrying Superconducting Wires (Postprint)

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Abstract:

We discuss the emergence of a spontaneous temperature and critical current spatial modulation in current-carrying high-temperature superconducting wire. The modulation of the critical current along the wire on a scale of 3-10 mm forces a fraction of the transport current to crisscross the resistive interface between the superconducting film and normal metal stabilizer attached to it. This generates additional heat that allows such structure to be self-sustainable. Stability and the conditions for experimental observation of this phenomenon are also discussed.

Author(s):
Levin, G. A. ; Barnes, P. N. ; Bulmer, J. S. ; Rodriguez, J. P. ; Connors, J. A.
Author Organization(s):
AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH PROPULSION DIRECTORATE
Descriptive Note:
Journal article
Supplementary Note:
Pub. in Physical Review B, v79 p056224-1 thru 056224-11, 2009.
Pagination:
0013

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFRL-RZ-WP-TP-2009-2120
Contract/Grant Number(s):
FA9550-06-1-0479
Task Number(s):
32
Project Number(s):
3145
Monitor Series:
AFOSR
 Subject Terms
Joint Capability Areas:
JCA_1_Force Support; JCA_1.2_Force Preparation; JCA_JCA_4.1.2_Sustain the Force; JCA_4.1_Deployment and Distribution; JCA_5_Command and Control; JCA_1.2.3_Educating; JCA_3.2_Engagement; JCA_3_Force Application; JCA_1.3_Human Capital Management; JCA_1.2.5_Lessons Learned; JCA_1.3.2_Personnel Management; JCA_6_Net Centric; JCA_8_Building Partnerships
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*DISSIPATION, *YTTRIUM BARIUM COPPER OXIDES, *ELECTRIC CURRENT, *SUPERCONDUCTORS, *WIRE, TRANSPORT, MODULATION, STABILIZATION SYSTEMS, COATINGS, HIGH TEMPERATURE, STATE OF THE ART, LOW TEMPERATURE, METALS, STRUCTURES
Field(s)/Group(s):
Inorganic Chemistry, Electrical and Electronic Equipment, Electricity and Magnetism
Keyword(s):
*SUPERCONDUCTING WIRES, SPATIAL MODULATION, COATED CONDUCTORS, NORMAL ZONE PROPAGATION, PE62203F, WUAFRL314532ZE
Report Date:
2009 May 26
Creation Date:
2009 Sep 09