OBSERVATION OF CRITICAL SLOWING DOWN AT THE STRUCTURAL PHASE-TRANSITION IN P-TERPHENYL BY HIGH-RESOLUTION NEUTRON SPECTROSCOPY

被引：20

作者：

CAILLEAU, H ^{[1
]}

HEIDEMANN, A ^{[1
]}

ZEYEN, CME ^{[1
]}

机构：

[1] INST MAX VON LAUE PAUL LANGEVIN,F-38042 GRENOBLE,FRANCE

来源：

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS | 1979年 / 12卷 / 11期

关键词：

D O I：

10.1088/0022-3719/12/11/002

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The high-energy resolution of the neutron backscattering technique was used to observe the critical slowing down of the orientational fluctuations of phenyl rings in p-terphenyl above the order-disorder phase transition at T c approximately=180K. The observed relaxation times tau c range from approximately 2*10-11 s at room temperature up to 1.15*10-8 s close to Tc.

引用

页码：L411 / L413

页数：3

共 9 条

[1] STRUCTURAL PHASE-TRANSITION IN POLYPHENYLS .4. DOUBLE-WELL POTENTIAL IN DISORDERED PHASE OF P-TERPHENYL FROM NEUTRON (200 K) AND X-RAY (ROOM-TEMPERATURE) DIFFRACTION DATA [J].

BAUDOUR, JL ;

CAILLEAU, H ;

YELON, WB .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1977, 33 (JUN15) :1773-1780

[2] STRUCTURE TRANSITION IN POLYPHENYL COMPOUNDS .1. CRYSTAL-STRUCTURE OF LOW-TEMPERATURE PHASE OF PARA TERPHENYL AT 113 K [J].

BAUDOUR, JL ;

DELUGEARD, Y ;

CAILLEAU, H .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1976, 32 (JAN15) :150-154

[3] INELASTIC NEUTRON-SCATTERING STUDY OF STRUCTURAL PHASE-TRANSITIONS IN POLYPHENYLS [J].

CAILLEAU, H ;

GIRARD, A ;

MOUSSA, F ;

ZEYEN, CME .

SOLID STATE COMMUNICATIONS, 1979, 29 (03) :259-261

[4] LONG-RANGE ORDER AT PHASE-TRANSITION IN PARATERPHENYL [J].

CAILLEAU, H ;

BAUDOUR, JL ;

GIRARD, A ;

YELON, WB .

SOLID STATE COMMUNICATIONS, 1976, 20 (06) :577-579

[5]

Dorner B., 1977, Dynamics of solids and liquids by neutron scattering, P127

[6] CRITICAL SLOWING DOWN OF ORIENTATIONAL FLUCTUATIONS IN A PLASTIC CRYSTAL [J].

PRESS, W ;

HULLER, A ;

STILLER, H ;

STIRLING, W ;

CURRAT, R .

PHYSICAL REVIEW LETTERS, 1974, 32 (24) :1354-1356

[7] NEUTRON QUASI-ELASTIC SCATTERING STUDY OF ND+4 ORIENTATIONAL FLUCTUATIONS IN BETA-PHASE ND4BR [J].

RUSH, JJ ;

ROWE, JM .

JOURNAL OF CHEMICAL PHYSICS, 1978, 69 (06) :2928-2930

[8] STUDY OF CENTRAL PEAK OF SRTIO3 BY NEUTRON SPECTROSCOPY WITH HIGH-ENERGY RESOLUTION [J].

TOPLER, J ;

ALEFELD, B ;

HEIDEMANN, A .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1977, 10 (05) :635-643

[9]

1977, NEUTRON BEAM FACILIT

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