2007/07/13 by T Lancaster, T. Lancaster, S. J. Blundell +13
Engineering · Materials Science · Physics and Astronomy · #Dipole #Ferromagnetism #Magnetic field #Multiferroics and related materials #Muon #Muon and positron interactions and applications #Muon spin spectroscopy #Physics of Superconductivity and Magnetism #Polarization (electrochemistry) #Quasistatic process #Relaxation (psychology) #cond-mat.str-el
paper · pdf · doi:10.1088/0953-8984/19/37/376203
published as J Phys Condens Matter 19, 376203 (2007) · 10 pages, 4 figures
arxiv created 2007/07/13 · openalex publication_date 2007/08/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present the results of muon-spin relaxation measurements on ferromagnetic BiMnO 3 . 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.