Characterizing formation of interfacial domain wall and exchange coupling strength in laminated exchange coupled composites

2013 ◽  
Vol 102 (16) ◽  
pp. 162408 ◽  
Author(s):  
H.-C. Hou ◽  
B. J. Kirby ◽  
K. Z. Gao ◽  
C.-H. Lai
Keyword(s):  
Domain Wall ◽  
Coupling Strength ◽  
Exchange Coupling

AB-INITIO BAND STRUCTURE CALCULATION FOR MAGNETIC MULTILAYERS

1993 ◽  
Vol 07 (01n03) ◽  
pp. 456-459 ◽  
Author(s):  
J. STICHT ◽  
F. HERMAN ◽  
J. KÜBLER
Keyword(s):  
Magnetic Properties ◽  
Band Structure ◽  
Total Energy ◽  
Ab Initio ◽  
Coupling Strength ◽  
First Principles ◽  
Exchange Coupling ◽  
Magnetic Multilayers ◽  
Structure Calculation ◽  
Band Structure Calculation

The magnetic properties of magnetic multilayers are studied using first principles total energy calculations. In this paper we present our results for bcc Fe multilayers with a (001) stacking direction. Using Nb as a spacer material we find an oscillating exchange coupling with a period of about 4.6 Å( ≈3 Nb monolayers). A detailed study of the magetic moments in the Nb spacer is given. Furthermore we discuss the dependence of the exchange coupling strength as a function of the thickness of the Fe slabs.

Influence of exchange coupling on current-driven domain wall motion in a nanowire

2010 ◽  
Vol 322 (19) ◽  
pp. 2969-2972 ◽  
Author(s):  
Takashi Komine ◽  
Kota Takahashi ◽  
Hiroshi Murakami ◽  
Ryuji Sugita
Keyword(s):  
Domain Wall ◽  
Exchange Coupling ◽  
Wall Motion ◽  
Domain Wall Motion

Magnetic Structure of Nanowires and Magnetostatic Interaction

2010 ◽  
Vol 168-169 ◽  
pp. 269-272 ◽  
Author(s):  
A.A. Ivanov ◽  
V.A. Orlov ◽  
N.N. Podolsky
Keyword(s):  
Domain Wall ◽  
Numerical Simulations ◽  
Magnetic Structure ◽  
Domain Structure ◽  
Ground State ◽  
Exchange Coupling ◽  
Anisotropy Axis ◽  
Induced Anisotropy ◽  
Magnetostatic Interaction ◽  
Stable Domain

The ground state magnetization of nanowires built of ferromagnetic crystallites is considered taking into account the magnetostatic interaction. The criterion of formation of domains is found. The thickness of a domain wall is calculated analytically and the results are compared with the numerical simulations. We show that when the exchange coupling between crystallites is absent its role is played by magnetostatics that ensures the existence of stable domain structure. The direction of the induced anisotropy axis is shown to be determined by the shape of crystallites.

Studies of Exchange Coupling in Fe (001) Whisker/Cr/Fe Structures using BLS and Rheed Techniques.

1993 ◽  
Vol 313 ◽  
Author(s):  
B. Heinrich ◽  
M. From ◽  
J.F. Cochran ◽  
L. X. Liao ◽  
Z. Celiński ◽  
...  
Keyword(s):  
Coupling Strength ◽  
Exchange Coupling ◽  
High Energy ◽  
Variable Number ◽  
Antiferromagnetic Coupling ◽  
Iron Film ◽  
First Principles Calculations ◽  
Iron Whisker ◽  
Short Period ◽  
Coupling Strengths

ABSTRACTThe conditions for an almost perfect growth of smooth Cr (001) films on an iron whisker substrate have been investigated by means of reflection high energy electron diffraction (RHEED). The exchange interaction between 20 Monolayer thick Fe (001) films separated from a bulk whisker Fe (001) substrate by a variable number of Cr (001) Monolayers (ML) has been investigated by means of Brillouin light scattering experiments (BLS). These experiments show unambiguously that the exchange coupling strength between the iron film and the iron whisker can be described by a short wavelength oscillatory term superposed on a slowly varying antiferromagnetic background. The BLS data enabled one to separate the bilinear and the biquadratic contributions to the antiferromagnetic exchange coupling terms. Both the bilinear and the biquadratic coupling strengths exhibited a short period oscillatory dependence on the Cr interlayer thickness (∼2 Monolayers). Maxima in the bilinear antiferromagnetic coupling strength occur for an odd number of Cr Monolayers. This observation is not in agreement with first principles calculations. The first phase inversion has been found to occur between 4 and 5 ML of Cr.

scholarly journals Modulation of interlayer exchange coupling strength in magnetic tunnel junctions via strain effect

AIP Advances ◽  
2015 ◽  
Vol 5 (9) ◽  
pp. 097221 ◽  
Author(s):  
Xin Jiang ◽  
Zhipeng Li ◽  
Yuankai Zheng ◽  
Christian Kaiser ◽  
Zhitao Diao ◽  
...  
Keyword(s):  
Coupling Strength ◽  
Exchange Coupling ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Strain Effect ◽  
Interlayer Exchange Coupling ◽  
Interlayer Exchange

Exchange coupling strength in synthetic ferrimagnetic media

2001 ◽  
Vol 37 (4) ◽  
pp. 1449-1451 ◽  
Author(s):  
A. Inomata ◽  
E.N. Abarra ◽  
B.R. Acharya ◽  
H. Akimoto ◽  
I. Okamoto
Keyword(s):  
Coupling Strength ◽  
Exchange Coupling
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