A Stoner-Wohlfarth model Redux: Static properties

Physica B: Condensed Matter

Volumn 403, Issue 19-20, 2008, Pages 3563-3570

  Tannous, C ^a   Gieraltowski, J ^a  

^a UNIVERSITÉ DE BRETAGNE OCCIDENTALE   (France)

Author keywords

Hysteresis; Magnetic materials; Magnetic properties; Magnetic properties of nanostructures; Magnetization reversal mechanisms

Indexed keywords

FERROMAGNETIC MATERIALS; HYSTERESIS; MAGNETIC DOMAINS; MAGNETIC MATERIALS; MAGNETIC PROPERTIES; MAGNETIC STORAGE; MAGNETISM; MAGNETIZATION REVERSAL; MICROELECTRONICS;

CONVENTIONAL MICROELECTRONICS; HIGH DENSITY MAGNETIC STORAGE; HIGHER FREQUENCIES; MAGNETIC PROPERTIES OF NANOSTRUCTURES; MAGNETIZATION REVERSAL MECHANISMS; PROCESSING BANDWIDTHS; SINGLE MAGNETIC DOMAINS; STONER-WOHLFARTH MODEL;

MAGNETIZATION;

EID: 55349116389     PISSN: 09214526     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.physb.2008.05.031     Document Type: Review

References (15)

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2. The anisotropy axis is intrinsic and determined by the growth conditions and crystallography of the grain, whereas the EA is determined from all contributing energy terms (anisotropy, shape, demagnetization and mutual interactions when they occur between grains) except Zeeman, since it is the probe. The total energy minimum is achieved when the magnetization is along the resulting EA orientation.
3. All energies are taken per unit volume of the particle.
4. 2 θ, where θ is the angle, the magnetization makes with the anisotropy axis. If K >0 the energy minimum (= 0) occurs when θ = 0, that is alignment with the anisotropy axis (easy axis case). If K<0. the energy minimum (-|K|) is obtained when θ = π/2 favoring an orientation perpendicular to the axis and hence in a plane perpendicular to it (easy plane case).
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