2004/11/01 by T. L. Gilbert · 2,564 citations
Materials Science · Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · Mathematics · #Magnetic Properties and Applications #Geomagnetism and Paleomagnetism Studies #Magnetic properties of thin films #Magnetization #Magnetization dynamics #Permalloy #Ferromagnetism #Condensed matter physics #Phenomenological model #Magnetic damping #Physics #Field (mathematics) #Field theory (psychology) #Magnetic field #Landau–Lifshitz–Gilbert equation #Mathematics #Quantum mechanics
paper · doi:10.1109/tmag.2004.836740
published in IEEE Transactions on Magnetics 40(6), 3443-3449 (IEEE Magnetics Society)
openalex publication_date 2004/11/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/08
In 1955, a phenomenological theory of ferromagnetism was well established and had been corroborated by a considerable amount of experimental data. However, there were problems in the phenomenological theory of the dynamics of the magnetization field. The Landau-Lifshitz equation for damping of the motion of the magnetization field could not account for the large noneddy-current damping in thin Permalloy sheets. The problem undertaken herein is a reformulation of the theory in a way that is more consistent with the theory of damping in other physical systems in order to be able to take large damping into account.