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Charge Density Wave in the New Polymorphs of RE2Ru3Ge5 (RE = Pr, Sm, Dy)

TitleCharge Density Wave in the New Polymorphs of RE2Ru3Ge5 (RE = Pr, Sm, Dy)
Publication TypeJournal Article
Year of Publication2017
AuthorsBugaris, DE, Malliakas, CD, Han, F, Calta, NP, Sturza, M, Krogstad, MJ, Osborn, R, Rosenkranz, S, Ruff, JPC, Trimarchi, G, Bud'ko, SL, Balasubramanian, M, Chung, DY, Kanatzidis, MG
JournalJournal of the American Chemical Society
Volume139
Pagination4130-4143
Date Published03
Type of ArticleArticle
ISBN Number0002-7863
Accession NumberWOS:000397477700032
Keywordsag, chemistry, ga square net, gd, la, rare-earth-element, rete3 re, spectra, superconductivity, systems, tellurium
Abstract

tributed to an apparent charge density wave (CDW). Both the high-temperature average crystal structure and the low-temperature incommensufately Modulated crystal structure (for Sm2Ru3Ge5 as a representative) have been solved. The charge density wave order is manifested by periodic distortions of the one-dimensional zigzag Ge chains. From X-ray diffraction, charge transport (electrical resistivity, Hall effect, magnetoresistance), magnetic measurements, and heat capacity, the ordering temperatures (T-CDW) observed, in the Pr and Sm analogues are similar to 200 and similar to 175 K, respectively. The charge transport measurement results indicate an electronic state transition happening simultaneously with the CDW transition. X-ray absorption near-edge spectroscopy (XANES) and electronic band structure results are also reported.

DOI10.1021/jacs.7b00284
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Complex States

Alternate JournalJ. Am. Chem. Soc.