Article Magnetotransport properties in van der Waals RTe3 (R=La, Ce, Tb)

Tomo Higashihara ORCID ; Ryotaro Asama ; Ryoya Nakamura ; Mori Watanabe ORCID ; Nanami Tomoda ORCID ; Thomas Johannes Hasiweder ORCID ; Yuita Fujisawa ORCID ; Yoshinori Okada ; Takuya Iwasaki SAMURAI ORCID ; Kenji Watanabe SAMURAI ORCID ; Takashi Taniguchi SAMURAI ORCID ; Nan Jiang ORCID ; Yasuhiro Niimi ORCID

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Citation
Tomo Higashihara, Ryotaro Asama, Ryoya Nakamura, Mori Watanabe, Nanami Tomoda, Thomas Johannes Hasiweder, Yuita Fujisawa, Yoshinori Okada, Takuya Iwasaki, Kenji Watanabe, Takashi Taniguchi, Nan Jiang, Yasuhiro Niimi. Magnetotransport properties in van der Waals RTe3 (R=La, Ce, Tb). Physical Review B. 2024, 109 (13), 134404.
SAMURAI

Description:

(abstract)

Rare-earth tritellurides are van-der-Waals antiferromagnets which have been attracting attention as materials not only with high mobility, but also with various states such as superconductivity under high pressure, incommensurate charge-density-wave (CDW) phase, and multiple antiferromagnetic phases. In this work, we performed longitudinal resistivity and Hall resistivity measurements simultaneously in exfoliated RTe3 (R =La, Ce, Tb) thin film devices, in order to investigate the influence of magnetic ordering on transport properties in van-der-Waals magnetic materials. We have obtained carrier mobility and concentration using a two-band model, and have observed an increase in carrier mobility in the antiferromagnets CeTe3 and TbTe3 due to the magnetic tran- sition. Especially in CeTe3, the carrier concentration has changed drastically below the magnetic transition temperature, suggesting the interaction between the CDW and antiferromagnetic phases. In addition, the analysis of the Shubnikov-de Haas oscillations in CeTe3 supports the possibility of Fermi surface modulation by magnetic ordering. This research will pave the way not only for spintronic devices that take advantage of high mobility, but also for the study of the correlation between CDW and magnetism states in low-dimensional materials.

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Keyword: Antiferromagnetism, Charge density waves, Hall effect, Magnetoresistance, Shubnikov-de Haas effect, Magnetic thin films, Rare-earth magnetic materials

Date published: 2024-04-02

Publisher: American Physical Society (APS)

Journal:

  • Physical Review B (ISSN: 24699950) vol. 109 issue. 13 134404

Funding:

  • Japan Science and Technology Agency JPMJFR2134
  • Japan Society for the Promotion of Science JP20H02557
  • Japan Society for the Promotion of Science JP21J20477
  • Japan Society for the Promotion of Science JP22H04481
  • Japan Society for the Promotion of Science JP23H00257
  • Japan Society for the Promotion of Science JP23K13062

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1103/physrevb.109.134404

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Updated at: 2024-04-19 12:30:19 +0900

Published on MDR: 2024-04-19 12:30:20 +0900

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