Specific Heat and Phase Transition Phenomena in (CH_3NH_3)_5Bi_2Cl_<11>
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概要
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Specific heat of (CH_3NH_3)_5Bi_2Cl_<11> was measured by adiabatic calorimetry between 13 K and 325 K. A typical second-order type of anomaly was observed at 307.4 K. The enthalpy and entropy of transition were determined as 3.06 kJ mol^<-1> and 10.6 J K^<-1>mol^<-1>, respectively. A broad hump in the curve of specific heat was found around 160 K. Its contribution was estimated as the excess specific heat extending from about 100 K to 200 K over an assumed normal base line, which results in the values of enthalpy and entropy as 1.57 kJ mol^<-1> and 9.85 JK^<-1>mol^<-1>, respectively. The phase transition in the crystal was discussed in connection with such specific heat anomalies.
- 社団法人日本物理学会の論文
- 1994-10-15
著者
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Ishibashi Yoshihiro
Synthetic Crystal Research Laboratory
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Tojo T
Tokyo Inst. Technol. Yokohama
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Tojo Takeo
Materials And Structures Laboratory Tokyo Institute Of Technology
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Atake T
Materials And Structures Laboratory Tokyo Institute Of Technology
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Atake Tooru
Research Laboratory Of Engineering Materials Tokyo Institute Of Tachnology
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Iwata Makoto
Synthetic Crystal Research Laboratory, School of Engineering, Nagoya University
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Tojo Takeo
Research Laboratory Of Engineering Materials Tokyo Institute Of Technology
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Iwata Makoto
Synthetic Crystal Research Laboratory School Of Engineering Nagoya University
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Iwata Makoto
Synthetic Crystal Research Laboratory Faculty Of Engineering Nagoya University
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Ishibashi Yoshihiro
Synthehic Crystal Reseach Laboratory Faculty Of Engineering Nagoya University
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