Distributions of moments of single-molecule spectral lines and the dynamics of amorphous solids

被引：42

作者：

Naumov, AV

Vainer, YG ^{[1
]}

Bauer, M

Zilker, S

Kador, L

机构：

[1] Russian Acad Sci, Inst Spect, Troitsk 142190, Moscow Reg, Russia

[2] Univ Bayreuth, Inst Phys, D-95440 Bayreuth, Germany

[3] Univ Bayreuth, Bayreuther Inst Makromol Forsch, D-95440 Bayreuth, Germany

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.63.212302

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We propose and demonstrate a method for deriving information about the dynamics of amorphous solids. We show that in a glassy matrix at low temperatures, when single-molecule excitation spectra have complicated shapes, moments are more appropriate for describing these spectra than the usual concept of linewidths. By studying the first four moments of the excitation spectra of individual molecules (tetra-tert-butylterrylene) in a polymer matrix (polyisobutylene) at 2 K we derived information about the interaction of chromophores and two-level systems on a microscopic level.

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页数：4

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