Incommensurate two-dimensional checkerboard charge density wave in the low-dimensional superconductor Ta4Pd3Te16
Zhenzhong Shi, S. J. Kuhn, F. Flicker, T. Helm, J. Lee, William Steinhardt, Sachith Dissanayake, D. Graf, J. Ruff, G. Fabbris, D. Haskel, S. Haravifard
DOI 10.1103/PhysRevResearch.2.042042 · Physical Review Research
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Abstract
We report the observation of a two-dimensional (2D) checkerboard charge density wave (CDW) in the low-dimensional superconductor Ta4Pd3Te16. By determining its CDW properties across the temperature-pressure (T−P) phase diagram and comparing with prototypical CDW materials, we conclude that Ta4Pd3Te16 features (a) an incommensurate CDW with a mixed character of dimensions [quasi-1D (Q1D) considering its needlelike shape along the b axis, Q2D as the CDW has checkerboard wave vectors, and 3D because of CDW projections along all three axes], and (b) one of the weakest CDWs compared to its superconductivity (SC), i.e., enhanced SC with respect to CDW, suggesting an interesting interplay of the two orders.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ta4Pd3Te16 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.6 | Pressure unresolved | unknown |
| Ta4Pd3Te16 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 6 | 0.25 GPa | unknown |
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