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

Shi, Zhenzhong, Kuhn, S. J., Flicker, F. ORCID: https://orcid.org/0000-0002-8362-1384, 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: 06 Jan 2024 03:09
URI: https://orca.cardiff.ac.uk/id/eprint/138619

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