Effect of magnetic field on the phase transitions of EBBA by means of a high-resolution and super-sensitive DSC

被引：31

作者：

Hosaka, S ^{[1
]}

Tozaki, K ^{[1
]}

Hayashi, H ^{[1
]}

Inaba, H ^{[1
]}

机构：

[1] Chiba Univ, Fac Educ, Dept Sci Educ, Inage Ku, Chiba 2638522, Japan

来源：

PHYSICA B-CONDENSED MATTER | 2003年 / 337卷 / 1-4期

基金：

日本学术振兴会;

关键词：

heat flux; DSC; high resolution; phase transition; EBBA; magnetic effect;

D O I：

10.1016/S0921-4526(03)00389-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Phase transitions of the N-p-ethoxybenzylidene-p'-butylaniline (EBBA) were measured by means of a high-resolution and super-sensitive DSC. The crystal to liquid crystal transition and liquid crystal to isotropic liquid transition was observed at 305.8 and 352.4 K at a heating rate of I mK s(-1) respectively. The crystal to liquid crystal transition was found to have fine structures resulting from different crystalline states of the sample which depended on the sample preparation and on the heating rate of the measurement. The temperature due to liquid crystal to isotropic liquid transition was raised by 34 mK by applying a magnetic field of 5 T. The magnetic effect was discussed based on the extension of the Clapeyron equation. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：138 / 146

页数：9

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