GLASS DYNAMICS PROBED BY THE LONG-LIVED STIMULATED PHOTON-ECHO

被引：75

作者：

MEIJERS, HC ^{[1
]}

WIERSMA, DA ^{[1
]}

机构：

[1] UNIV GRONINGEN,CTR MAT SCI,9747 AG GRONINGEN,NETHERLANDS

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.68.381

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dynamics in an ethanol glass at 1.5 K has been investigated from picoseconds to milliseconds by two-dimensional stimulated-photon-echo measurements on zinc porphin. In this time frame the distribution of relaxation rates exhibits a 1/R dependence except for a gap stretching from about 1 kHz to 1 MHz. Evidence is presented for a time evolution of the glass structure that is not accounted for in the standard two-level-system model.

引用

页码：381 / 384

页数：4

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