Magnetic Phase Transition of Organic Free Radical p-Cl-BDPA
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概要
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The heat capacity of polycrystalline organic free radical, p-Cl-BDPA, has been measured between 1.5 and 20 K. The broad maximum near 5 K in the magnetic heat capacity corresponds the short range magnetic ordering of the unpaired electron. At 3.25 K a sharp peak was observed, which indicates paramagnetic-antiferromagnetic phase transition. The magnetic entropy of this transition yields 101.5% of the expected Rln2. Below T_N the magnetic heat capacity was in good agreement with the three-dimensional spin wave theory of antiferromagnet.
- 社団法人日本物理学会の論文
- 1973-08-05
著者
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Adachi Kimio
Department Of Chemistry Kyoto University
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Adachi Kimio
Department Of Chemisitry Faculty Of Science Kyoto University
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Deguchi Yasuo
College Of Liberal Arts And Science Kyoto University
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Yamauchi Jun
The Institute For Chemical Research Kyoto University
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