2 research outputs found
Stochastic dynamic simulations of fast remagnetization processes: recent advances and applications
Numerical simulations of fast remagnetization processes using the stochastic
dynamics are widely used to study various magnetic systems. In this paper we
first address several crucial methodological problems of such simulations: (i)
the influence of the finite-element discretization on the simulated dynamics,
(ii) choice between Ito and Stratonovich stochastic calculi by the solution of
micromagnetic stochastic equations of motion and (iii) non-trivial correlation
properties of the random (thermal) field. Next we discuss several examples to
demonstrate the great potential of the Langevin dynamics for studying fast
remagnetization processes in technically relevant applications: we present
numerical analysis of equilibrium magnon spectra in patterned structures, study
thermal noise effects on the magnetization dynamics of nanoelements in pulsed
fields and show some results for a remagnetization dynamics induced by a
spin-polarized current.Comment: Invited paper submittedto JEMS'04 (Dresden, Germany
ΠΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΎΠ½Π½Π°Ρ ΡΠ΅Ρ Π½ΠΎΠ»ΠΎΠ³ΠΈΡ ΠΎΡΠ΅Π½ΠΊΠΈ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»Π΅ΠΉ ΠΊΠ°ΡΠ΅ΡΡΠ²Π° ΠΆΠΈΠ·Π½ΠΈ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ²
ΠΡΠ΅Π½ΠΊΠ° ΠΊΠ°ΡΠ΅ΡΡΠ²Π° ΠΆΠΈΠ·Π½ΠΈ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² Π½Π° ΠΎΡΠ½ΠΎΠ²Π΅ ΠΌΠ½ΠΎΠ³ΠΎΠΌΠ΅ΡΠ½ΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° Π΄Π°Π½Π½ΡΡ
(ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΎΠ² ΠΏΡΠΈΡ
ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠ΅ΡΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ). ΠΡΠ±ΠΎΡ R Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ ΠΎΡΠ½ΠΎΠ²Π½ΠΎΠ³ΠΎ ΠΈΠ½ΡΡΡΡΠΌΠ΅Π½ΡΠ°ΡΠΈΡ.Assessment of the quality of life of patients on the basis of multidimensional data analysis (the results of psychological testing). The choice of R as the main tool