Evidence for a supercooled plastic-crystal phase in solid ethanol

被引：73

作者：

Srinivasan, A

Bermejo, FJ

deAndres, A

Dawidowski, J

Zuniga, J

Criado, A

机构：

[1] UNIV AUTONOMA MADRID, CSIC, INST CIENCIA MAT, FAC CIENCIAS, E-28049 MADRID, SPAIN

[2] UNIV BASQUE COUNTRY, FAC CIENCIAS, DEPT FIS MAT CONDENSADA, E-48960 BILBAO, SPAIN

[3] CSIC, FAC CIENCIAS, INST CIENCIA MAT, E-41080 SEVILLE, SPAIN

[4] UNIV SEVILLA, DEPT FIS MAT CONDENSADA, E-41080 SEVILLE, SPAIN

来源：

PHYSICAL REVIEW B | 1996年 / 53卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.53.8172

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The existence of an orientationally disordered cubic phase of solid ethanol is revealed by x-ray diffraction and Raman spectroscopic measurements. Such a phase, whose existence was postulated some time ago on the basis of specific-heat measurements, is produced by quenching below some 95 K a plastic crystal formed upon melting and subsequent annealing of the topologically disordered (glassy) solid. The relevance of the present findings for current discussions on glassy dynamics is analyzed in some detail.

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收藏

页码：8172 / 8175

页数：4

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