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Superconductivity in centimeter length Indium-Gallium nanowires

Superconductivity in centimeter length Indium-Gallium nanowires
Superconductivity in centimeter length Indium-Gallium nanowires
In-doped Ga nanowires ~150 nm in diameter and ~6mm in length have been formed in silica nanocapillaries. X-ray fluorescence and diffraction measurements performed at the Advanced Photon Source have been used to characterize their chemical composition and crystal structure. Investigation of the low temperature transport properties of these wires reveals a two stage superconducting transition. Magnetoresistance measurements are suggestive of vortex trapping in the wire. The X-ray fluorescence measurements suggest phase separation in the capillaries into Ga nanodroplets and In-Ga eutectic wires. A model to explain the vortex trapping consistent with this observation is being developed.

Acknowledgement:
This work is supported by the Penn State Materials Research Science and Engineering Center, funded by the National Science Foundation (DMR 0820404). TCF and LW are supported by the Energy Frontier Research Center (DE-0001057), DOE.
Zhao, W.
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Bischof, J.
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Singh, M.
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Fitzgibbons, T.C.
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Liu, X.
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Liu, C.
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Wang, L.
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Cai, Z.
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Chen, S.
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Hayes, J.
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Sazio, P.J.A.
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Badding, J.V.
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Chan, M.H.W.
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Zhao, W.
ac9b3ab6-bdcd-4169-bf85-319a09f24a07
Bischof, J.
745a3a9e-3ea9-4911-8bac-3407c63ffe49
Singh, M.
d6edfd35-4837-447f-ae8d-dca8f998703e
Fitzgibbons, T.C.
b56018cb-53b9-42b4-bff0-d59fb7aaa1da
Liu, X.
878efcac-76c6-4ca0-8f4a-425f1e9abdac
Liu, C.
b571ad53-5bc1-44a4-9128-35f73e9d742d
Wang, L.
ff28fc9d-dbeb-460f-943c-f49997f58bf7
Cai, Z.
30c719ee-e4c7-4c7a-8d28-6215a4ba1db5
Chen, S.
ac405529-3375-471a-8257-bda5c0d10e53
Hayes, J.
a6d3acd6-d7d5-4614-970e-0e8c594e48e2
Sazio, P.J.A.
0d6200b5-9947-469a-8e97-9147da8a7158
Badding, J.V.
940f7adb-73df-4f8a-9c46-e47f5425fef0
Chan, M.H.W.
39c017d2-3582-4c10-921a-c4e033d965b9

Zhao, W., Bischof, J., Singh, M., Fitzgibbons, T.C., Liu, X., Liu, C., Wang, L., Cai, Z., Chen, S., Hayes, J., Sazio, P.J.A., Badding, J.V. and Chan, M.H.W. (2013) Superconductivity in centimeter length Indium-Gallium nanowires. The American Physical Society (APS) March Meeting 2013, , Baltimore, United States. 18 - 22 Mar 2013.

Record type: Conference or Workshop Item (Paper)

Abstract

In-doped Ga nanowires ~150 nm in diameter and ~6mm in length have been formed in silica nanocapillaries. X-ray fluorescence and diffraction measurements performed at the Advanced Photon Source have been used to characterize their chemical composition and crystal structure. Investigation of the low temperature transport properties of these wires reveals a two stage superconducting transition. Magnetoresistance measurements are suggestive of vortex trapping in the wire. The X-ray fluorescence measurements suggest phase separation in the capillaries into Ga nanodroplets and In-Ga eutectic wires. A model to explain the vortex trapping consistent with this observation is being developed.

Acknowledgement:
This work is supported by the Penn State Materials Research Science and Engineering Center, funded by the National Science Foundation (DMR 0820404). TCF and LW are supported by the Energy Frontier Research Center (DE-0001057), DOE.

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More information

e-pub ahead of print date: 2013
Venue - Dates: The American Physical Society (APS) March Meeting 2013, , Baltimore, United States, 2013-03-18 - 2013-03-22
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 376003
URI: http://eprints.soton.ac.uk/id/eprint/376003
PURE UUID: e3be1ed9-7f47-4d31-a36f-359fe6647092
ORCID for P.J.A. Sazio: ORCID iD orcid.org/0000-0002-6506-9266

Catalogue record

Date deposited: 22 Apr 2015 14:06
Last modified: 12 Dec 2021 03:19

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Contributors

Author: W. Zhao
Author: J. Bischof
Author: M. Singh
Author: T.C. Fitzgibbons
Author: X. Liu
Author: C. Liu
Author: L. Wang
Author: Z. Cai
Author: S. Chen
Author: J. Hayes
Author: P.J.A. Sazio ORCID iD
Author: J.V. Badding
Author: M.H.W. Chan

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