NEUTRON-SCATTERING STUDY ON PHASE-TRANSITION AT 74-K IN RB2ZNCL4

被引：8

作者：

MASHIYAMA, H ^{[1
]}

SUGIMOTO, K ^{[1
]}

OOHARA, Y ^{[1
]}

YOSHIZAWA, H ^{[1
]}

机构：

[1] UNIV TOKYO,INST SOLID STATE PHYS,MINATO KU,TOKYO 106,JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1992年 / 61卷 / 09期

关键词：

D O I：

10.1143/JPSJ.61.3042

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The phase transition at T3=73.5 K in Rb2ZnCl4 is investigated by means Of neutron scattering at JRR-3M(4G). In phase 4 below T3, superlattice reflections appear at the S-point, and their intensity increases continuously with decreasing temperature. The critical index beta estimated from the superlattice intensity is 0.37. The extinction rule within the (h, k, 0) plane is consistent with the space group C1c1. Phonon dispersion of low energy is determined by inelastic scattering. Softening of the phonon branch is observed at the S-point as T3 is approached.

引用

页码：3042 / 3045

页数：4

共 50 条

[21] On the phase transition in the domain wall of Rb2ZnCl4 near 150 K
Gridnev, SA
Gorbatenko, VV
Prasolov, BN
CRYSTALLOGRAPHY REPORTS, 1997, 42 (04) : 670 - 673
[22] FLUCTUATIONS OF INCOMMENSURATE WAVE NEAR PARAELECTRIC MODULATED PHASE-TRANSITION IN RB2ZNCL4
TRUBITSYN, MP
SAVCHENKO, VV
FERROELECTRICS, 1992, 134 (1-4) : 259 - 264
[23] CRITICAL-BEHAVIOR OF RB2ZNCL4 AT THE NORMAL-INCOMMENSURATE PHASE-TRANSITION
MATSUDA, T
HATTA, I
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1980, 48 (01) : 157 - 159
[24] THE INCOMMENSURATE - COMMENSURATE PHASE-TRANSITION IN RB2ZNCL4 - CONFRONTATION OF PERMITTIVITY AND BIREFRINGENCE DATA
FOUSEK, J
KROUPA, J
CHAPELLE, J
SOLID STATE COMMUNICATIONS, 1987, 63 (09) : 769 - 772
[25] RAMAN-SCATTERING STUDIES OF RB2ZNCL4 AND K2ZNCL4
KATKANANT, V
HARDY, JR
KIRBY, RD
ULLMAN, FG
FERROELECTRICS, 1989, 99 : 213 - 238
[26] ELECTRON-MICROSCOPE STUDY ON COMMENSURATE-INCOMMENSURATE PHASE-TRANSITION OF RB2ZNCL4 CRYSTALS
TSUDA, K
YAMAMOTO, N
YAGI, K
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1988, 57 (06) : 2057 - 2068
[27] NEUTRON STRUCTURAL STUDY OF THE SUCCESSIVE PHASE-TRANSITIONS IN RB2ZNCL4
QUILICHINI, M
PANNETIER, J
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1983, 39 (DEC): : 657 - 663
[28] NEUTRON STUDY OF THE NORMAL INCOMMENSURATE PHASE-TRANSITION IN K2ZNCL4
QUILICHINI, M
BERNEDE, P
LEFEBVRE, J
SCHWEISS, P
JOURNAL OF PHYSICS-CONDENSED MATTER, 1990, 2 (20) : 4543 - 4558
[29] SCATTERING ANGLE DEPENDENCE OF BRILLOUIN SHIFT NEAR THE NORMAL-INCOMMENSURATE PHASE-TRANSITION POINT OF RB2ZNCL4
YAMANAKA, A
KASAHARA, M
TATSUZAKI, I
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1981, 50 (03) : 735 - 736
[30] A NEW PHASE OF RB2ZNCL4
LIANG, JK
CHE, GC
MA, WY
JIANG, TB
KEXUE TONGBAO, 1987, 32 (17): : 1166 - 1169

← 1 2 3 4 5 →