Title :
Nucleation rates for magnetization reversal in biaxial ferromagnets
Author :
Braun, Hans-Benjamin
Author_Institution :
Theor. Phys., ETH-Honggerberg, Zurich, Switzerland
fDate :
11/1/1991 12:00:00 AM
Abstract :
A biaxial ferromagnet in an external magnetic field is considered. A metastable state is realized when the magnetization is uniform and pointing antiparallel to the external field. At finite temperature, fluctuations drive the configuration over the lowest lying saddle point of energy. A known unstable structure is identified as this saddle point and nucleation rates are calculated by mean of the Brinkman/Laundauer-Swanson/Langer (BLSL) approach
Keywords :
ferromagnetism; magnetisation reversal; nucleation; Brinkman-Laundauer-Swanson-Langer approach; biaxial ferromagnet; external magnetic field; magnetization reversal; metastable state; nucleation rates; saddle point of energy; Anisotropic magnetoresistance; Demagnetization; Equations; Fluctuations; Magnetic anisotropy; Magnetization reversal; Metastasis; Perpendicular magnetic anisotropy; Surface treatment; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
