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説明:

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.

権利情報:

• In Copyright
  

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

刊行年月日: 2024-04-02

出版者: American Physical Society (APS)

掲載誌:

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

研究助成金:

• 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

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1103/physrevb.109.134404

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更新時刻: 2024-04-19 12:30:19 +0900

MDRでの公開時刻: 2024-04-19 12:30:20 +0900