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No.66 (1998/9) >

 
Title :17テスラまでの強磁場中熱電能測定装置の開発
Title alternative :Thermopower Measurements in Magnetic Fields up to 17 tesla
Authors :仲間, 隆男
辺土, 正人
玉城, 純孝
Resel, R.
Burkov, A.T.
矢ヶ崎克馬
Authors alternative :Nakama, Takao
Hedo, Masato
Tamashiro, Junko
Resel, Roland
Burkov, Alexander T.
Yagasaki, Katusma
Issue Date :Sep-1998
Abstract :We describe the system for thermopower measurement in magnetic fields up to 17 T in the temperature range from 3 K to 300 K. A special heating technique named "Seesaw heating method", a method similar to ac method, was developed and resulted in good thermal stability and high accuracy. Finding an empirical formula for all the calibration curves of chromel wire utilized as reference material enables us to measure thermopower at any field and at any temperature. The experimental results on GdAl_2 have been successfully analyzed on the basis of Mott's 2-band model with polalized conduction bands using linearized Boltzmann equation.
Type Local :紀要論文
Publisher :琉球大学理学部
URI :http://hdl.handle.net/20.500.12000/9287
Citation :琉球大学理学部紀要 = Bulletin of the College of Science. University of the Ryukyus no.66 p.21 -38
Appears in Collections:No.66 (1998/9)

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