activity
19982024
most citedFokker-Planck and Landau-Lifshitz-Bloch Equations for Classical Ferromagnets

433 citations · 4.1k across the 129 of their papers we have counts for

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Showing 2008Show all

7 papers · 1 filter

cond-mat.mtrl-sci2008★ 57 cited

Dynamics of Einstein - de Haas Effect: Application to Magnetic Cantilever

Reem Jaafar, E. M. Chudnovsky, D. A. Garanin

Local time-dependent theory of Einstein - de Haas effect is developed. We begin with microscopicinteractions and derive dynamical equations that couple elastic deformations with in…

cond-mat.stat-mech2008★ 11 cited

Are superparamagnetic spins classical?

D. A. Garanin

Effective giant spins of magnetic nanoparticles are considered classically in the conventional theory of superparamagnetism based on the Landau-Lifshitz-Langevin equation. However,…

cond-mat.stat-mech2008★ 14 cited

Effect of environmental spins on Landau-Zener transitions

D. A. Garanin, R. Neb, R. Schilling

Landau-Zener (LZ) transitions of a two-level system (e. g., electronic spin in molecular magnets) coupled to one or many environmental spins (e. g., nuclear spins) are studied. For…

cond-mat.stat-mech2008★ 7 cited

Density Matrix Equation for a Bathed Small System and its Application to Molecular Magnets

D. A. Garanin

The technique of density matrix equation (DME) for a small system interacting with a bath is explained in detail. Special attention is given to the nonsecular DME that is needed in…

cond-mat.stat-mech2008★ 22 cited

Dipolar Ordering and Quantum Dynamics of Domain Walls in Mn-12 Acetate

D. A. Garanin, E. M. Chudnovsky

We find that dipolar interactions favor ferromagnetic ordering of elongated crystals of Mn12 Acetate below 0.8 K. Ordered crystals must possess domain walls. Motion of the wall cor…

cond-mat.stat-mech2008★ 13 cited

Extended Debye Model for Molecular Magnets

D. A. Garanin

Heat capacity data on Mn12 are fitted within the extended Debye model that takes into account a continuum of optical modes as well as three different speeds of sound.