35 citations · 62 across the 9 of their papers we have counts for
9 papers
Local Relaxation and Collective Stochastic Dynamics
H. Neal Bertram, Xiaobin Wang
Damping and thermal fluctuations have been introduced to collective normal modes of a magnetic system in recent modeling of dynamic thermal magnetization processes. The connection…
Thermal stability of coupled ferromagnetic and superparamagnetic particles
Vladimir L. Safonov, H. Neal Bertram
We consider a single-domain ferromagnetic particle with uniaxial anisotropy coupled to a single-domain soft ferromagnetic particle (superparamagnetic particle). The problem of ther…
Nonlinear microscopic relaxation of uniform magnetization precession
Vladimir L. Safonov, H. Neal Bertram
Dynamic relaxation for nonlinear magnetization excitation is analyzed. For direct processes, such as magnon-electron scattering and two-magnon scattering, the relaxation rate is de…
Reply on ``Fluctuation-dissipation considerations for phenomenological damping models for ferromagnetic thin films'' [N. Smith, J. Appl. Phys. \bf{92}, 3877 (2002)]
Vladimir L. Safonov, H. Neal Bertram
We show that the critique of our recent papers presented in the abovementioned paper (NS) appeals to an incorrect mathematical analogy between electrical circuits and linear magnet…
Microscopic relaxation mechanisms and linear magnetization dynamics
Vladimir L. Safonov, H. Neal Bertram
Linear magnetization dynamics in the presense of a thermal bath is analyzed for two general classes of microscopic damping mechanisms. The resulting stochastic differential equatio…
Non-uniform thermal magnetization noise in thin films: application to GMR heads
Vladimir L. Safonov, H. Neal Bertram
A general scheme is developed to analyze the effect of non-uniform thermal magnetization fluctuations in a thin film. The normal mode formalism is utilized to calculate random magn…