A muon-spin relaxation study of BiMnO3

Details A muon-spin relaxation study of BiMnO3 A muon-spin relaxation study of BiMnO3

2007-07-13

arxiv.org/abs/0707.2024v1

J Phys Condens Matter 19, 376203 (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

10 pages, 4 figures

Scientific paper

10.1088/0953-8984/19/37/376203

We present the results of muon-spin relaxation measurements on ferromagnetic BiMnO3. Below T_C=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 T_C, fluctuations of the Mn^3+ moments are characteristic of critical behaviour while there is a sharp crossover to a region of fast dynamic fluctuations at higher temperatures.

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