A muoniated radical in selenium

I. D. Reid, S. F. J. Cox, U. A. Jayasooriya, U. Zimmermann

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4 Citations (Scopus)


We report new 0.3 T transverse-field muSR experiments in crystalline Se which show only a small, slowly relaxing muon signal at 300 K, accounting for about 30% of the incoming muon polarization. However, at 90 K signals are observed around 74 and 157 MHz, characteristic of a radical with a hyperfine coupling of 231 MHz. Very fast relaxation which increases with temperature makes these signals impossible to follow beyond 200 K. Above 400 K a quickly relaxing diamagnetic signal becomes visible, its relaxation falling with increasing temperature. In the melt (> 490 K) just a single non-relaxing diamagnetic signal is seen. These observations may be explained by electron spin-exchange with a muoniated radical. (C) 2002 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)89-93
Number of pages5
JournalPhysica B: Condensed Matter
Issue number1-4
Publication statusPublished - 2003
Event9th International Conference on Muon Spin Rotation, Relaxation and Resonance (MuSR) - Williamsburg, United States
Duration: 3 Jun 20027 Jun 2002

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