O'Neil, G.
, Schmidt, D.
, Tomlin, N.
and Ullom, J.
(2010),
Quasiparticle Density of States Measurements in Clean Superconducting AlMn Alloys, Physical Review B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=903374
(Accessed November 21, 2024)
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Quasiparticle Density of States Measurements in Clean Superconducting AlMn Alloys
Published
Author(s)
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Abstract
Aluminum doped with Manganese (AlMn) forms a superconducting alloy with the transition temperature suppressed by the added Manganese. We present quasiparticle density of states measurements on superconducting AlMn alloys made by current-voltage measurements on normalmetal/ insulator/supercondutor tunnel junctions. The density of states remains BCS-like with a reduced gap, matching the predictions of Kaiser. However we measure additional subgap states not predicted by Kaiser, and demonstrate that these subgap states will harm some potential applications.Citation
Physical Review B
Volume
107
Issue
9
Pub Type
Journals
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Keywords
Microrefrigerator, Normal-insulator-superconductor tunnel junction, Implanted superconductor, Superconducting density of states
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Created May 6, 2010, Updated February 19, 2017