Incommensurate two-dimensional checkerboard charge density wave in the low-dimensional superconductor Ta_{4}Pd_{3}Te_{16}

Autor: 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
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Physical Review Research, Vol 2, Iss 4, p 042042 (2020)
Druh dokumentu: article
ISSN: 2643-1564
DOI: 10.1103/PhysRevResearch.2.042042
Popis: 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.
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