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Durham University

Department of Physics

Staff profile

Publication details for Professor Tom Lancaster

Lancaster, T., Blundell, S.J., Baker, P.J., Pratt, F.L., Hayes, W., Yamada, I., Azuma, M. & Takano, M. (2007). A muon-spin relaxation study of BiMnO3. Journal of physics condensed matter 19(37): 376203.

Author(s) from Durham


We present the results of muon-spin relaxation measurements on ferromagnetic BiMnO3. Below TC = 98.0(1) K oscillations in the time dependence of the muon polarization are observed, characteristic of a quasistatic magnetic field at a single muon site, allowing us to probe the critical behaviour associated with the magnetic phase transition. We are able to suggest candidate muon sites on the basis of dipole field calculations. Close to TC, fluctuations of the Mn3+ moments are characteristic of critical behaviour while there is a sharp crossover to a region of fast dynamic fluctuations at higher temperatures.