Very low-temperature muon relaxation in an organic spin-Peierls compound

We have observed strong muon-spin relaxation (CBR) in the spin-Peierls compound MEM(TCNQ)(2) at temperatures down to 39 mK. We attribute this relaxation to the creation of defect spins by the muon. Furthermore, we observe a slowing down of spin fluctuations as the spin-Peierls energy gap opens, and...

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Bibliographic Details
Main Authors: Lovett, B, Blundell, S, Pratt, F, Jestadt, T, Hayes, W, Tagaki, S, Kurmoo, M
Format: Conference item
Published: Elsevier 2000
Description
Summary:We have observed strong muon-spin relaxation (CBR) in the spin-Peierls compound MEM(TCNQ)(2) at temperatures down to 39 mK. We attribute this relaxation to the creation of defect spins by the muon. Furthermore, we observe a slowing down of spin fluctuations as the spin-Peierls energy gap opens, and we relate this effect to the size of the energy gap. (C) 2000 Elsevier Science B.V. All rights reserved.