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Incommensurate two-dimensional checkerboard charge density wave in the low-dimensional superconductor Ta4Pd3Te16

Shi, Zhenzhong, Kuhn, S. J., Flicker, F., Helm, T., Lee, J., Steinhardt, William, Dissanayake, Sachith, Graf, D., Ruff, J., Fabbris, G., Haskel, D. and Haravifard, S. 2020. Incommensurate two-dimensional checkerboard charge density wave in the low-dimensional superconductor Ta4Pd3Te16. Physical Review Research 2 (4) , 042042(R). 10.1103/PhysRevResearch.2.042042

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Abstract

We report the observation of a two-dimensional (2D) checkerboard charge density wave (CDW) in the low-dimensional superconductor Ta 4 Pd 3 Te 16 . By determining its CDW properties across the temperature-pressure ( T − P ) phase diagram and comparing with prototypical CDW materials, we conclude that Ta 4 Pd 3 Te 16 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.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Additional Information: Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license
Publisher: American Physical Society
ISSN: 2643-1564
Date of First Compliant Deposit: 17 February 2021
Date of Acceptance: 1 December 2020
Last Modified: 18 Feb 2021 10:15
URI: http://orca.cardiff.ac.uk/id/eprint/138619

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