A μ+ SR study of ferromagnetic exchange in the fullerence charge transfer salt TDAE-C60 (CROSBI ID 270942)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Lancaster, T. ; Steer, C.A. ; Blundell, S.J. ; Pratt, F.L. ; Hayes, W. ; Omerzu, A. ; Mihailovic, D.
engleski
A μ+ SR study of ferromagnetic exchange in the fullerence charge transfer salt TDAE-C60
Zero field muon spin relaxation measurements have been made on the charge transfer salt (tetrakisdimethylaminoethylene)C-60 [TDAE-C- 60]. The effects of high temperature annealing on the dynamics and local magnetic properties of the compound are investigated. With the sample in the ferromagnetic alpha-phase, a signal characteristic of magnetic order is observed below 16 K. The initial asymmetry shows a discontinuity around 200 K, while the relaxation rate shows temperature activated behaviour above around 120 K. Annealing at 383 K is found to destroy the ferromagnetic signal and results in a relaxation rate peaked at 10 K, which may be attributable to the freezing out of a dynamic Jahn-Teller distortion.
muon-spin rotation ; organic magnets
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Podaci o izdanju
137 (1-3)
2003.
1251-1252
objavljeno
0379-6779
0379-6779
10.1016/s0379-6779(02)01022-6
Povezanost rada
Fizika, Interdisciplinarne prirodne znanosti