Thermal Study of DCNQI-Cu using a High Accuracy Specific Heat Measurement System

被引：3

作者：

Matsui, Ayaka ^{[1
]}

Takaoka, Yui ^{[1
]}

Nishio, Yutaka ^{[1
]}

Kato, Reizo ^{[2
]}

Kajita, Koji ^{[1
]}

机构：

[1] Toho Univ, Dept Phys, Miyama 2-2-1, Chiba 2748510, Japan

[2] RIKEN, Condensed Mol Mat Lab, Wako, Saitama 3510198, Japan

来源：

25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 4: QUANTUM PHASE TRANSITIONS AND MAGNETISM | 2009年 / 150卷

基金：

日本学术振兴会;

关键词：

D O I：

10.1088/1742-6596/150/4/042120

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

DCNQI-Cu system exhibits a mysterious metal-insulator-metal (M-I-M) phase transition. Deuteration of methyl basis can control critical temperatures of these peculiar phase transitions. We have been studying a mechanism of the transitions by measuring thermal properties. To quantitatively discuss the phase transitions, we have developed specific heat measurement system in a wide temperature range between 5 K and 200 K for the sample with the weight of less than 0.3mg. We have succeeded in an observation of the specific heat jump and latent heat at this first order phase transition in the cooling and heating processes.

引用

页数：4

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