Ground state of orthorhombic RbC60:: A high-field electron-spin-resonance investigation

被引：25

作者：

Bennati, M

Griffin, RG

Knorr, S

Grupp, A

Mehring, M ^{[1
]}

机构：

[1] MIT, Francis Bitter Natl Magnet Lab, Cambridge, MA 02139 USA

[2] MIT, Dept Chem, Cambridge, MA 02139 USA

[3] Univ Stuttgart, Inst Phys 2, D-70550 Stuttgart, Germany

来源：

PHYSICAL REVIEW B | 1998年 / 58卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.58.15603

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on electron paramagnetic resonance in the low-temperature phase of orthorhombic RbC60 at 94 and 140 GHz microwave frequencies. Below about 25-30 K characteristic features that could be related to antiferromagnetic resonance (AFMR) or alternatively to spin clusters are clearly distinguished from the conduction-electron spin resonance signal above 50 K. The different scenarios, AFMR vs spin glass or spin clusters, are discussed. If the experimental data are interpreted within the AFMR scenario the corresponding spin-flop field can be estimated to be about 0.34 T. [S0163-1829(98)02147-X].

引用

页码：15603 / 15608

页数：6

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