scholarly journals Steady one-dimensional domain wall motion in biaxial ferromagnets: Mapping of the Landau-Lifshitz equation to the sine-Gordon equation

2020 ◽  
Vol 101 (9) ◽  
Author(s):  
R. Rama-Eiroa ◽  
R. M. Otxoa ◽  
P. E. Roy ◽  
K. Y. Guslienko
1978 ◽  
Vol 17 (11) ◽  
pp. 1997-2006 ◽  
Author(s):  
Toshitaka Fujii ◽  
Takashi Shinoda ◽  
Shigeru Shiomi ◽  
Susumu Uchiyama

Author(s):  
Ross G. Lund ◽  
J. M. Robbins ◽  
Valeriy Slastikov

We study the dynamics of a domain wall under the influence of applied magnetic fields in a one-dimensional ferromagnetic nanowire, governed by the Landau–Lifshitz–Gilbert equation. Existence of travelling-wave solutions close to two known static solutions is proven using implicit-function-theorem-type arguments.


1977 ◽  
Vol 13 (5) ◽  
pp. 1169-1171 ◽  
Author(s):  
A. Emura ◽  
T. Fujii ◽  
S. Shiomi ◽  
S. Uchiyama

Author(s):  
Arseni Goussev ◽  
Ross G. Lund ◽  
J. M. Robbins ◽  
Valeriy Slastikov ◽  
Charles Sonnenberg

We develop a systematic asymptotic description for domain wall motion in one-dimensional magnetic nanowires under the influence of small applied magnetic fields and currents and small material anisotropy. The magnetization dynamics, as governed by the Landau–Lifshitz–Gilbert equation, is investigated via a perturbation expansion. We compute leading-order behaviour, propagation velocities and first-order corrections of both travelling waves and oscillatory solutions, and find bifurcations between these two types of solutions. This treatment provides a sound mathematical foundation for numerous results in the literature obtained through more ad hoc arguments.


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