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In this work, a measurement setup to study the Seebeck and Nernst effect at high temperatures and high magnetic fields is introduced and discussed. The measurement system allows for simultaneous measurements of both thermoelectric effects up to 700 K and magnetic fields up to 12 T. Based on theoretical concepts, measurement equations are derived that counteract constant spurious offset voltages and, therefore, inhibit systematic errors in the measurement setup. The functionality is demonstrated on polycrystalline samples of elemental bismuth as well as various full-Heusler materials, exhibiting an anomalous Nernst effect. In all samples, the measured Seebeck and Nernst coefficients align excellently with the reported values. This allows future research to substantially extend the measured temperature and field intervals, commonly limited to temperatures below room temperature. For the first time, the thermoelectric and thermomagnetic properties of these materials are reported up to temperatures of 560 K.

権利情報:

• In Copyright
  

  This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in M. Parzer, T. Schmid, F. Garmroudi, A. Riss, T. Mori, E. Bauer; Measurement setup for Nernst and Seebeck effect at high temperatures and magnetic fields tested on elemental bismuth and full-Heusler compounds. Rev. Sci. Instrum. 1 April 2024; 95 (4): 043906 and may be found at https://doi.org/10.1063/5.0195486

キーワード: thermoelectric

刊行年月日: 2024-04-01

出版者: AIP Publishing

掲載誌:

• Review of Scientific Instruments (ISSN: 00346748) vol. 95 issue. 4 043906

研究助成金:

• JST Mirai JPMJMI19A1

原稿種別: 査読前原稿 (Author's original)

MDR DOI: https://doi.org/10.48505/nims.4814

公開URL: https://doi.org/10.1063/5.0195486

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更新時刻: 2024-10-09 08:30:36 +0900

MDRでの公開時刻: 2024-10-09 08:30:36 +0900