J. Phys.: Condens. Matter 10 No 15 (20 April 1998) L259-L263
 

LETTER TO THE EDITOR

 

Spin dynamics in the spin-gap system CaV4O9 studied using muon-spin relaxation

Th Jestädt, R I Bewley, S J Blundell, W Hayes, B W Lovett, F L Pratt and R C C Ward
University of Oxford, Department of Physics, Clarendon Laboratory, Parks Road, Oxford OX1 3PU, UK

 Received 11 December 1997

 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.

Link to the Journal of Physics page.
 

Thomas Jestädt, 1998. Back to publications.