F. J. Bermejo

TL;DR: In this paper, the dynamics of two molecular glass formers were monitored at microsecond scales via muon spin relaxation, and the temperature dependence of transverse relaxation rates and amplitudes was found to provide accurate and unbiased estimates for a critical temperature as predicted by kinetic theories of the glass transition.

TL;DR: In this paper, it is shown that phenomena experimentally observed at pico-and nanosecond scales can be mapped onto those shown by a model of infinitely thin hard needles rotating about body-centred cubic lattice positions.

TL;DR: In this paper, the effect of Fe doping on the magnetic properties of La 0.7 Pb 0.3 Mn 1-x Fe x O 3 (x = 0, 0.15 and 0.2) manganites is studied by the Monte Carlo simulation technique.

TL;DR: In this paper, the magnetic and structure-related excitations in solid beta-oxygen are investigated by means of high-resolution inelastic neutron scattering, and an approximate separation of the magnetic response is achieved by modelling the structural excitations from a lattice dynamics calculation, and the reliability of such a separation assessed by comparison of the static magnetic susceptibility with that derived from polarized neutron diffraction.

TL;DR: In this article, the spin relaxation rates of implanted muons were measured under transverse fields upon heating the material from the glass phase, consistent with the onset of ergodicity-restoring motions some 22 K above the calorimetrc glass transition.