SPIN DYNAMICS OF TRIPLET PHOTOEXCITATIONS IN C-60 - EVIDENCE FOR A DYNAMIC JAHN-TELLER EFFECT

被引：15

作者：

WEI, X

VARDENY, ZV

机构：

[1] Department of Physics, University of Utah, Salt Lake City

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.52.R2317

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have used the absorption-detected magnetic-resonance (ADMR) technique to study the spin dynamics of triplet photoexcitations in C-60 molecules dispersed in polystyrene glasses. We found that the ADMR spectra contain two triplet powder patterns A and B with substantial spin reorientation dynamics, which increases with the temperature. The spin dynamics of triplet A are successfully modeled by a dynamic Jahn-TelIer effect, where the spin reorientation process is among six degenerate D-5d deformations of the excited C-60 molecule. Triplet B, however, is extrinsic in origin, with substantially different spin dynamics.

引用

页码：R2317 / R2320

页数：4

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