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Chinese Physics, 2005, Vol. 14(8): 1533-1535    DOI: 10.1088/1009-1963/14/8/010
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Laser-modulated ac measurement of high temperature thermopower

Fan Zhen-Jun (樊振军), Zhang Dian-Lin (张殿琳)
Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
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.
Keywords:  high temperature      thermopower      experimental set-up      ac-measurement  
Received:  27 April 2005      Revised:  12 May 2005      Accepted manuscript online: 
PACS:  72.15.Jf (Thermoelectric and thermomagnetic effects)  
Fund: Project supported by the National Natural Science Foundation of Chian (Grant No 10334080).

Cite this article: 

Fan Zhen-Jun (樊振军), Zhang Dian-Lin (张殿琳) Laser-modulated ac measurement of high temperature thermopower 2005 Chinese Physics 14 1533

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