We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Discovery of a Superconducting Cu-Bi Intermetallic Compound by High-Pressure Synthesis.
- Authors
Clarke, Samantha M.; Walsh, James P. S.; Amsler, Maximilian; Malliakas, Christos D.; Yu, Tony; Goedecker, Stefan; Wang, Yanbin; Wolverton, Chris; Freedman, Danna E.
- Abstract
A new intermetallic compound, the first to be structurally identified in the Cu−Bi binary system, is reported. This compound is accessed by high-pressure reaction of the elements. Its detailed characterization, physical property measurements, and ab initio calculations are described. The commensurate crystal structure of Cu11Bi7 is a unique variation of the NiAs structure type. Temperature-dependent electrical resistivity and heat capacity measurements reveal a bulk superconducting transition at Tc=1.36 K. Density functional theory calculations further demonstrate that Cu11Bi7 can be stabilized (relative to decomposition into the elements) at high pressure and temperature. These results highlight the ability of high-pressure syntheses to allow for inroads into heretofore-undiscovered intermetallic systems for which no thermodynamically stable binaries are known.
- Subjects
BISMUTH compounds; SUPERCONDUCTIVITY; INTERMETALLIC compounds; HIGH pressure chemistry; DENSITY functional theory
- Publication
Angewandte Chemie International Edition, 2016, Vol 55, Issue 43, p13446
- ISSN
1433-7851
- Publication type
Article
- DOI
10.1002/anie.201605902