Abstract
We report a muon-spin relaxation study of the two-dimensional spin-gap system CaV4O9. We find that the form of the muon-spin relaxation is strongly temperature dependent and attribute this behaviour to the presence of a spin gap. At temperatures below 30 K a root-exponential behaviour is seen for the muon-spin relaxation function, which can be attributed to defect spins. At temperatures above 160 K we see the onset of muon hopping.
Original language | English |
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Pages (from-to) | L259-L263 |
Number of pages | 5 |
Journal | Journal of Physics: Condensed Matter |
Volume | 10 |
Issue number | 15 |
Publication status | Published - 20 Apr 1998 |