Specific Heat Anomalies near 147 K for K_2ZnCl_4

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概要

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• Sinugle crystals of I{2ZIlCl4 xvitla higla ptrrity xvere growru by the Czochralski tnethod in orderto avoid the strorag infltrence of xvater reuaa?tining ira tlae crystal. The laeat capacity for a singlecryst;tl XVEIS uneastrred f'or cooling as xvell 21S heati?ag ILll'lS, trsing a hotaae- btrilt adiabatic calorizaaeterxvith zx tet?aperattrre precision of' 1 IIIK. The existetuce of a loxv-teraaper;tttrre inconaraaenstrratephase was revealed in these uaaearstrretaaents f'or tlte first titme. Ot? heating, txvo sharp peaks xveref'otnnd att 146.983 :l- 0.002 K (peak I) azad art 146.956 :In 0.002 K (peak II), and the tezaaperatvrreitaterx'al betx'x'een tlae txvo peaks anaaotrrated to ?tpproxiuaaately 0.027 K. Tlaese peaks shoxved atherrnal hysteresis of atbotrt 0.1 K. Tlae shapes of peak IT obtained 011 botla heating and coolingtaaeastrrezaaent are chatracteristic of' a cotnuaaeuastrrate - incouaaumensturate plaase transition.

• 社団法人日本物理学会の論文
• 1998-07-15

著者

• Jeong S

  Pusan National Univ. Pusan Kor

• Jeong Se

  Department Of Physics Pusan National University

• Ahn Ho

  Department Of Physice And Research Center For Dielectic And Advanced Matter Physics Pusan National U

• MOON Il

  Department of Physics,Pohang University of Science and Technology

• JEONG Yoon

  Department of Physics,Pohang University of Science and Technology

• Moon Il

  Department Of Physics Pohang University Of Science And Technology

• Moon Il

  Department Of Internal Medicine Ewha Womans University School Of Medicine Ewha Medical Research Inst

• Jeong Yoon

  Department Of Physics Pohang University Of Science And Technology

• Jeong Yoon

  Department Of Physics And Electron Spin Science Center Pohang Univ. Of Science And Technology

• Moon Il

  Department Of Chemical Engineering Yonsei University

• JEONG Se

  Department of Metallurgical Engineering, Yonsei University

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