Radio-frequency muon spin resonance studies of endohedral and exohedral muonium adducts of fullerenes

article

1996

Applied Magnetic Resonance

11

315

323

The radio-frequency muon spin resonance technique (RF-μSR) is described, with examples drawn from muon studies of fullerences. Two distinct species can be detected by RF-μSR when solid C60 is irradiated with positive muons. Endohedral muonium ([email protected]) is characterized by a muon hyperfine constant (A μ) close to the vacuum value. A remarkable feature of the RF-μSR spectrum is the double quantum transition, which appears when the allowed transitions are saturated. The exohedral muonium adduct (C60Mu) is also detected, and has a much smaller value ofA μ typical of a carbon-centred organic radical. It has been studied by RF-μSR in dilute solution, which is not possible for transverse field muon spin rotation (TF-μSR). There is a significant difference inA μ of C60Mu in the solid and in solution, a result of great import to the analysis of avoided-level crossing experiments on13C60Mu.

10.1007/BF03162062

0937-9347

Final article published

Conventional Magnetic Resonance
Fullerene
Hyperfine Interaction
Muon Spin
Precession Frequency

English

Springer

Peer reviewed

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©1996. Applied Magnetic Resonance. Springer.