Magnetic effect on the phase transitions of n-C32H66 measured by high resolution and super-sensitive DSC

被引:11
作者
Inaba, H
Tozaki, K
Hayashi, H
Quan, CJ
Nemoto, N
Kimura, T
机构
[1] Chiba Univ, Fac Educ, Dept Sci Educ, Inage Ku, Chiba 2638522, Japan
[2] Kyushu Univ, IGSES, Dept Mol & Mat Sci, Hakozaki, Fukuoka 8128581, Japan
[3] Tokyo Metropolitan Univ, Fac Technol, Hachioji, Tokyo 1920397, Japan
基金
日本学术振兴会;
关键词
DSC; n-alkane; phase transition; magnetic effect; refrigerator-cooled superconducting magnet;
D O I
10.1016/S0921-4526(02)01274-7
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
A high-resolution and super-sensitive DSC measurable under strong magnetic field has been constructed in the magnetic bore of a refrigerator-cooled superconducting magnet. The baseline stability of the calorimeter was about 20 nW. The magnetic effect to the phase transitions of n-C32H66 was measured using the calorimeter. The transition temperatures due to solid-solid transition and due to melting were shifted to higher temperatures by several tens of mK by applying the field of 5 T. The temperature shift due to the magnetic orientation was discussed based on the extension of the Clapeyron equation. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:63 / 71
页数:9
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