Ferroelastic phase transition in [P(CH3)4]2MnBr4 by EPR of Mn2+ ions

被引：0

作者：

Zapart, W ^{[1
]}

Solecki, J

Zapart, MB

Tanaka, K

Sawada, A

机构：

[1] Czestochowa Tech Univ, Inst Phys, PL-42200 Czestochowa, Poland

[2] Matsushita Elect Corp, Elect Res Lab, Osaka 56911, Japan

[3] Okayama Univ, Fac Sci, Dept Phys, Okayama 700, Japan

来源：

FERROELECTRICS | 2002年 / 272卷

关键词：

EPR; phase transition; ferroelastics;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents temperature changes of the EPR lines in [P(CH3)(4)](2)MnBr4 in the vicinity of the ferroelastic phase transition temperature T-c=376.5K. Significant changes in the EPR spectrum have been observed in the temperature range of 370-380K. It is suggested that the changes observed above T-c are caused by rotations of the MnBr4 groups loosely situated in the crystal lattice, whereas changes below T-c are a direct result of rebuilding of the ferroelastic domain structure.

引用

页码：2185 / 2190

页数：6

共 7 条

[1] STRUCTURE OF TETRAMETHYLAMMONIUM TETRABROMOMANGANATE IN ITS LOW-TEMPERATURE PHASE [J].

HASEBE, K ;

ASAHI, T ;

GESI, K .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1990, 46 :759-762

[2] SUBLATTICE STRAIN, FERRIDISTORTIVE CRYSTAL AND FERRIELASTICS [J].

SAWADA, A .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1991, 60 (11) :3593-3595

[3]

Solecki J, 2000, MOLECUL PHYS REP, V28, P44

[4]

SOLECKI J, 1999, B MAGN RESON, V19, P48

[5] ROLES OF CATION AND ANION MOLECULES IN FERRIDISTORTIVE PHASE-TRANSITION IN [A(CH3)(4)](2)XBR(4) TYPE CRYSTALS [J].

TANAKA, K ;

SHIMADA, T ;

NISHIHATA, Y ;

SAWADA, A .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1995, 64 (01) :146-154

[6]

ZAPART MB, 1997, FERROELECTRICS, V101, P199

[7]

Zapart W, 1998, J KOREAN PHYS SOC, V32, pS697

← 1 →