中国物理B ›› 2005, Vol. 14 ›› Issue (8): 1533-1535.doi: 10.1088/1009-1963/14/8/010

• GENERAL • 上一篇    下一篇

Laser-modulated ac measurement of high temperature thermopower

樊振军, 张殿琳   

  1. Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • 收稿日期:2005-04-27 修回日期:2005-05-12 出版日期:2005-07-13 发布日期:2005-07-13
  • 基金资助:
    Project supported by the National Natural Science Foundation of Chian (Grant No 10334080).

Laser-modulated ac measurement of high temperature thermopower

Fan Zhen-Jun (樊振军), Zhang Dian-Lin (张殿琳)   

  1. Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2005-04-27 Revised:2005-05-12 Online:2005-07-13 Published:2005-07-13
  • Supported by:
    Project supported by the National Natural Science Foundation of Chian (Grant No 10334080).

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摘要： An experimental set-up for ac-measurement of thermopower between room temperature and 1200K by using modulated laser-heating has been developed. The method shows many advantages compared with the conventional dc-measurements: convenience, applicability to small samples, possibility to measure the anisotropy of single crystals, and capability to continuously trace the temperature dependence of thermopower. The thermopower of a very short piece of pure Pt was measured with the present set-up to test the reliability and accuracy of our new method.

Abstract: An experimental set-up for ac-measurement of thermopower between room temperature and 1200K by using modulated laser-heating has been developed. The method shows many advantages compared with the conventional dc-measurements: convenience, applicability to small samples, possibility to measure the anisotropy of single crystals, and capability to continuously trace the temperature dependence of thermopower. The thermopower of a very short piece of pure Pt was measured with the present set-up to test the reliability and accuracy of our new method.

Key words: high temperature, thermopower, experimental set-up, ac-measurement

中图分类号:  (Thermoelectric and thermomagnetic effects)

  • 72.15.Jf