X-ray study of modulated structure in [N(CH3)4]2CuCl4 under high pressure

被引：3

作者：

Asahi, T ^{[1
]}

Izutsu, K ^{[1
]}

机构：

[1] Yamaguchi Univ, Fac Sci, Dept Phys Biol & Informat, Yamaguchi 7538512, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2003年 / 72卷 / 02期

关键词：

N(CH3)(4)](2)CuCl4; incommensurate phase; modulated structure; pressure; phase transition; X-ray diffraction;

D O I：

10.1143/JPSJ.72.330

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Pressure-temperature dependence of modulation wavenumber of [N(CH3)(4)](2)CuCl4 was measured with X-ray diffraction method in the region of 22 less than or equal to T less than or equal to 160degreesC, 0.25 less than or equal to p less than or equal to 0.95 GPa. Two commensurate phases with modulation wavenumber q = 3/8 and 2/5 were found within the pressure-induced incommensurate phase. The phase q = 3/8 is identified as the high-pressure ferroelectric phase F-2 found by Gesi.

引用

页码：330 / 334

页数：5

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