C-60(-)-TETRAPHENYLPHOSPHONIUM+ - AN ORGANIC ALLOY

被引：12

作者：

BECKER, U

DENNINGER, G

DYAKONOV, V

GOTSCHY, B

KLOS, H

ROSLER, G

HIRSCH, A

WINTER, H

机构：

[1] UNIV TUBINGEN,INST ORGAN CHEM,W-7400 TUBINGEN 1,GERMANY

[2] UNIV KARLSRUHE,INST PHYS,W-7500 KARLSRUHE,GERMANY

[3] UNIV BAYREUTH,BIMF,W-8580 BAYREUTH,GERMANY

来源：

EUROPHYSICS LETTERS | 1993年 / 21卷 / 03期

关键词：

D O I：

10.1209/0295-5075/21/3/003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The new fullerite C60-PPHI4+.(ClPPHI4)2 was investigated by EPR and static susceptibility. Charge transfer from PPHI4 to C60 was found to be incomplete. C60-PPHI4+ separates into a system of localized and delocalized spins at higher temperatures. At 40K an Anderson-type localization occurs. The low-temperature susceptibility is shown to be a mixture of a Curie susceptibility and a contribution that resembles the behaviour of a spin singlet with an activated low-lying triplet state. The EPR linewidth below 40 K is only about 400 mG.

引用

页码：267 / 271

页数：5

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