High-field ESR in the metallic fullerides RbC60 and CsC60

We discuss field-dependent electron spin resonance (ESR) experiments on the orthorhombic phase of RbC60 and CsC60. X-and W-band measurements have been performed to determine electronic scattering rates in the metallic temperature regime from 50 to 350 K. The insulating low-temperature phase (T <...

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Bibliographic Details
Published in:Applied magnetic resonance 2001-12, Vol.21 (3-4), p.517-525
Main Authors: Rahmer, J., Grupp, A., Mehring, M.
Format: Article
Language:English
Subjects:
Electron paramagnetic resonance
Electron spin
Fullerides
Insulation
Low temperature
Orthorhombic phase
Spin resonance
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Summary:We discuss field-dependent electron spin resonance (ESR) experiments on the orthorhombic phase of RbC60 and CsC60. X-and W-band measurements have been performed to determine electronic scattering rates in the metallic temperature regime from 50 to 350 K. The insulating low-temperature phase (T < 50 K) has been investigated by X-, Q-, and W-band ESR, i.e., at 9, 34 and 95 GHz, in order to clarify whether collective resonance modes of a possibly magnetic ground state can be observed.
ISSN:0937-9347
1613-7507
DOI:10.1007/BF03162425