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journal article·2021-01-01Open access

Shubnikov-de-Haas oscillation and possible modification of effective mass in CeTe3 thin films

Mori Watanabe, Ryoya Nakamura, Sanghyun Lee, Takuya Asano, Takashi Ibe, Masashi Tokuda, Hiroki Taniguchi, Daichi Ueta, Yoshinori Okada, Kensuke Kobayashi, Yasuhiro Niimi

AIP Advances· Volume 11· Issue 1
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Source abstract

Abstract

Magnetoresistance measurements have been performed in CeTe3 thin film devices in a temperature range from 2.1 to 20 K up to 8 T. A clear Shubnikov-de-Haas oscillation was observed in the whole temperature range. The temperature dependence of the oscillation amplitude was found to deviate from the Lifshitz–Kosevich formula below the magnetic transition temperature at TN1 ≈ 3 K. This indicates a significant interplay between the magnetic ordering and the conduction electrons, which could lead to a modification of the effective cyclotron mass. By analyzing the temperature dependence of the oscillation amplitude, we have estimated the effective mass, quantum lifetime and quantum mobility of the material both in the paramagnetic and antiferromagnetic states.
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Research context

OpenAlex topics: Rare-earth and actinide compounds · Advanced Condensed Matter Physics · Magnetic and transport properties of perovskites and related materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics, Graduate School of Science, Osaka University 1 , Toyonaka, Osaka 560-0043, Japan

Okinawa Institute of Science and Technology Graduate University 2 , Okinawa 904-0495, Japan

Institute for Physics of Intelligence and Department of Physics, The University of Tokyo 3 , Bunkyo-ku, Tokyo 113-0033, Japan

Center for Spintronics Research Network, Osaka University 4 , Toyonaka, Osaka 560-8531, Japan

Funding

Shimadzu Science Foundation · Toyota Riken Scholar · Japan Society for the Promotion of Science · Kato Foundation for Promotion of Science · Mazda Foundation · Yazaki Memorial Foundation for Science and Technology · Support Center for Advanced Telecommunications Technology Research Foundation · Murata Science Foundation

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