Structural instability and magnetism of superconducting KCr3As3
Guangzong Xing, Ling Shang, Yuhao Fu, Wei Ren, Xiaofeng Fan, Weitao Zheng, David J. Singh
DOI 10.1103/PhysRevB.99.174508 · Physical Review B
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Abstract
We find a lattice instability in the superconductor KCr3As3, corresponding to a distortion of the Cr metallic wires in the crystal structure. This distortion couples strongly to both the electronic and magnetic properties, in particular by making the electronic structure much more nearly one dimensional, and by shifting the compound away from magnetism. We discuss the implications of these results in the context of the possibly unconventional superconductivity of this phase.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| KCr3As3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 5 | Pressure not reported | unknown |
| RbCr3As3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7.3 | Pressure not reported | unknown |
| K2Cr3As3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 6.1 | Pressure not reported | unknown |
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