scholarly journals Quantum dissipation theory of slow magnetic relaxation mediated by domain-wall motion in the one-dimensional chain compound[Mn(hfac)2BNOH]

2006 ◽  
Vol 74 (17) ◽  
Author(s):  
A. S. Ovchinnikov ◽  
I. G. Bostrem ◽  
V. E. Sinitsyn ◽  
A. S. Boyarchenkov ◽  
N. V. Baranov ◽  
...  
Keyword(s):  
Domain Wall ◽  
Magnetic Relaxation ◽  
Wall Motion ◽  
Domain Wall Motion ◽  
Dimensional Chain ◽  
Quantum Dissipation ◽  
One Dimensional ◽  
Slow Magnetic Relaxation ◽  
The One ◽  
Chain Compound

ANALYTICAL DETERMINATION OF NUCLEATION FIELD AND MAGNETIC REVERSAL MODES IN EXCHANGE-COUPLED NANOLAYERS

2009 ◽  
Vol 23 (25) ◽  
pp. 2955-2961 ◽  
Author(s):  
G.-P. ZHAO ◽  
CHUN YANG ◽  
C.-W. XIAN ◽  
Y.-P. FENG
Keyword(s):  
Domain Wall ◽  
Layer Thickness ◽  
Wall Motion ◽  
Domain Wall Motion ◽  
Analytical Determination ◽  
Magnetic Reversal ◽  
Soft Layer ◽  
Reversal Process ◽  
The One

General formulae for coherent/incoherent nucleation fields have been obtained as functions of the thickness of the hard and soft layers within a self-contained micromagnetic model for a hard/soft trilayer. The nucleation modes are determined reliably by direct comparison of the nucleation fields for different modes. It is shown that coherent nucleation cannot take place no matter how small the layer thickness. For small soft layer thickness, the magnetic reversal mode is an incoherent nucleation. As the soft layer thickness increases, the dominant magnetic reversal process is domain-wall motion/pinning. Analyses demonstrate that negative nucleation field and very small coercivity occur when the easy axes of neighboring layers are perpendicular. The results could shade light on Brown's coercivity paradox (where the measured coercivity is much smaller than the one given by the previous theories).

scholarly journals Existence of travelling-wave solutions representing domain wall motion in a thin ferromagnetic nanowire

2017 ◽  
Vol 148 (2) ◽  
pp. 395-407
Author(s):  
Ross G. Lund ◽  
J. M. Robbins ◽  
Valeriy Slastikov
Keyword(s):  
Domain Wall ◽  
Wall Motion ◽  
Domain Wall Motion ◽  
Travelling Wave ◽  
Travelling Wave Solutions ◽  
Implicit Function ◽  
One Dimensional ◽  
Wave Solutions ◽  
Static Solutions ◽  
Ferromagnetic Nanowire

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.

Analysis of One-Dimensional Domain Wall Motion under a Biased In-Plane Field

1978 ◽  
Vol 17 (11) ◽  
pp. 1997-2006 ◽  
Author(s):  
Toshitaka Fujii ◽  
Takashi Shinoda ◽  
Shigeru Shiomi ◽  
Susumu Uchiyama
Keyword(s):  
Domain Wall ◽  
Wall Motion ◽  
Domain Wall Motion ◽  
One Dimensional ◽  
Plane Field ◽  
Dimensional Domain
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