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Effect of electron count and chemical complexity in the Ta-Nb-Hf-Zr-Ti high-entropy alloy superconductor [electronic resource].

Published:
Washington, D.C. : United States. Dept. of Energy. Office of Basic Energy Sciences, 2016.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description:
pages E7,144-E7,150 : digital, PDF file
Additional Creators:
Brookhaven National Laboratory, United States. Department of Energy. Office of Basic Energy Sciences, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
High-entropy alloys are a new class of materials that consist of several principal elements arranged on simple lattices. These structures are stabilized by the high configurational entropy of the random mixing of the elements. Here, we show that the properties of a superconducting high-entropy alloy are strongly related to the electron count and that the superconducting transition temperatures of these alloys fall between those of analogous crystalline and amorphous materials. Here, we find that despite the large degree of randomness and disorder in these alloys, the superconducting properties are nevertheless strongly dependent on the chemical composition and complexity. We argue that high-entropy alloys are excellent model systems for understanding how superconductivity and other collective quantum states evolve from crystals to amorphous solids.
Report Numbers:
E 1.99:bnl--113907-2017-ja
bnl--113907-2017-ja
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Note:
Published through SciTech Connect.
11/01/2016.
"bnl--113907-2017-ja"
"KC0201010"
Proceedings of the National Academy of Sciences of the United States of America 113 46 ISSN 0027-8424 AM
Fabian von Rohr; Michał J. Winiarski; Jing Tao; Tomasz Klimczuk; Robert Joseph Cava.
Gordon and Betty Moore Foundation
National Science Centre (Poland)
Funding Information:
SC0012704
AC02-98CH10886
DEC-2012/07/E/ST3/00584
GBMF-4412
MA015MACA
View MARC record | catkey: 23758498