Alloying effect of rare-earth tritellurides on the charge density wave and magnetic properties

Kentaro Yumigeta, Jan Kopaczek, Yashika Attarde, Mohammed Y. Sayyad, Mark Blei, Seyed Tohid Rajaei Moosavy, Anvesh Yarra, Hayley Ruddick, Blake Povilus, Rounak Banerjee, Yunbo Ou, Sefaattin Tongay

Research output: Contribution to journalArticlepeer-review


Among many van der Waals materials rare-earth tritellurides (RTe3) allow studying several phenomena like magnetic, superconducting, and charge density wave (CDW). These studies show the effect of cationic alloying of antiferromagnetic RTe3 for fully tunable near room-temperature CDW properties. DyxGd1−xTe3 and DyxTb1−xTe3 alloys were synthesized through a chemical vapor transport technique, and the rare-earth element composition was controlled by changing the ratio of rare-earth metal reagents. The results show that the lattice parameters can be continuously tuned with the composition of the rare-earth cations leading to the variation of the internal chemical pressure. Temperature-dependent Raman spectroscopy and electric transport measurement show that the CDW transition temperature (TCDW) of RTe3 alloys varies with lattice parameters/chemical pressure spanning across 300-380 K. Additional magnetism studies offer the first insights into the magnetic ordering in RTe3 alloys. The emergence of multiple magnetic transitions implies complex magnetic interactions that arise from interactions between different rare-earth elements. Overall findings introduce ways to control the CDW behavior and provide valuable insights into the magnetic ordering in RTe3 alloys, contributing to further investigation and a better understanding of their properties.

Original languageEnglish (US)
Article number011407
JournalApplied Physics Reviews
Issue number1
StatePublished - Mar 1 2024

ASJC Scopus subject areas

  • General Physics and Astronomy


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