Work

Theoretical and Numerical Modeling of Optical Switching of Epitaxial Nanostructures Based on Iron-Garnet Films

Year: 2024

Type: article

Abstract: The paper presents a theoretical analysis of magnetization switching in a gadolinium ferrite garnet film due to the demagnetizing effect of a femtosecond laser pulse. Using the Lagrange formalism for a two-sublattice ferrimagnet, the effective Lagrangian, thermodynamic potential, and Rayleigh dissipative function are obtained. The phase diagram of the ferrite film is analyzed, and the main states of the system are identified. Magnetization switching diagrams and trajectories of the order parameter dynamics of the magnet are constructed. The ranges of magnetic fields, temperatures, and demagnetization values for the most efficient magnetization switching are analyzed.

Source: Физика металлов и металловедение

DOI: 10.31857/s0015323024040139

Authors: V. V. Yurlov, K. A. Zvezdin, A. K. Zvezdin

Institutions: Moscow Institute of Physics and Technology, MIREA - Russian Technological University, Russian Academy of Sciences, Prokhorov General Physics Institute

Language: English

Topic: Magnetic properties of thin films

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

OpenAlex ID: W4403797513

FWCI:

Cites: 23

Cited by:

Related to: 10