Heat Capacity in α-β Phase Transition of Quartz
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概要
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The heat capacity (C.) of quartz was measured by AC calorimetry near the at-pphase transition temperature. The existence of the intermediate phase (IP) wasconfirmed. A sharp increase of C, was observed at T., the lower transition tem-perature. The value of T. in heating runs (HR) was higher than that in coolingruns (CR) by about 0.9 K. A hump of C, was clearly observed at T., the highertransition temperature in CR and also in HR of a special heating cycle withoutpassing through T.. It was obscure, however, in the ordinary HR because of thehysteresis. The temperature range of IP was 1.15.1.0.05 K in CR, which is sig-nificantly narrower than the range where the X-ray satellite reflections are ob-servable.
- 社団法人日本物理学会の論文
- 1985-02-15
著者
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Hatta Ichiro
Department Of Applied Physics Faculty Of Engineering Nagoya University
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Kato Norio
Department Of Crystalline Materials Science Faculty Of Engineering Nagoya University
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Yao Haruhiko
Department Of Applied Physics Nagoya University:(present Address)department Of Physics Tokyo Institu
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Yao Haruhiko
Department Of Crystalline Materials Science Faculty Of Engineering Nagoya University
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Gouhara Kazutoshi
Department Of Crystalline Materials Science Faculty Of Engineering Nagoya University
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MATSUURA Masahide
Department of Applied Physics,Faculty of Engineering,Nagoya University
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Matsuura Masahide
Department Of Applied Physics Faculty Of Engineering Nagoya University
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Kato Norio
Department Of Applied Physics Faculty Of Engineering Nagoya University
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