Publisher’s Note: “Magnetic anisotropy and magnetization reversal in Co/Cu multilayers nanowires” [J. Appl. Phys. 111, 07C119 (2012)]

2012 ◽  
Vol 112 (2) ◽  
pp. 029904
Author(s):  
Naeem Ahmad ◽  
J. Y. Chen ◽  
D. W. Shi ◽  
Javed Iqbal ◽  
Xiufeng Han
2003 ◽  
Vol 777 ◽  
Author(s):  
T. Devolder ◽  
M. Belmeguenai ◽  
C. Chappert ◽  
H. Bernas ◽  
Y. Suzuki

AbstractGlobal Helium ion irradiation can tune the magnetic properties of thin films, notably their magneto-crystalline anisotropy. Helium ion irradiation through nanofabricated masks can been used to produce sub-micron planar magnetic nanostructures of various types. Among these, perpendicularly magnetized dots in a matrix of weaker magnetic anisotropy are of special interest because their quasi-static magnetization reversal is nucleation-free and proceeds by a very specific domain wall injection from the magnetically “soft” matrix, which acts as a domain wall reservoir for the “hard” dot. This guarantees a remarkably weak coercivity dispersion. This new type of irradiation-fabricated magnetic device can also be designed to achieve high magnetic switching speeds, typically below 100 ps at a moderate applied field cost. The speed is obtained through the use of a very high effective magnetic field, and high resulting precession frequencies. During magnetization reversal, the effective field incorporates a significant exchange field, storing energy in the form of a domain wall surrounding a high magnetic anisotropy nanostructure's region of interest. The exchange field accelerates the reversal and lowers the cost in reversal field. Promising applications to magnetic storage are anticipated.


2012 ◽  
Vol 520 (17) ◽  
pp. 5746-5751 ◽  
Author(s):  
S.J. Zhang ◽  
Jian-Guo Zheng ◽  
Z. Shi ◽  
S.M. Zhou ◽  
L. Sun ◽  
...  

2010 ◽  
Vol 108 (10) ◽  
pp. 103906 ◽  
Author(s):  
Hans Boschker ◽  
Jaap Kautz ◽  
Evert P. Houwman ◽  
Gertjan Koster ◽  
Dave H. A. Blank ◽  
...  

2018 ◽  
Vol 453 ◽  
pp. 107-113 ◽  
Author(s):  
Akinobu Yamaguchi ◽  
Takuo Ohkochi ◽  
Akira Yasui ◽  
Toyohiko Kinoshita ◽  
Keisuke Yamada

2003 ◽  
Vol 260 (1-2) ◽  
pp. 231-243 ◽  
Author(s):  
M. Kisielewski ◽  
A. Maziewski ◽  
M. Tekielak ◽  
J. Ferré ◽  
S. Lemerle ◽  
...  

2005 ◽  
Vol 97 (12) ◽  
pp. 123909 ◽  
Author(s):  
Jean-Louis Primus ◽  
Helmut Fritzsche ◽  
Mathieu Malfait ◽  
Margriet J. Van Bael ◽  
Jo De Boeck ◽  
...  

2009 ◽  
Vol 1198 ◽  
Author(s):  
Paolo Perna ◽  
Erika Jiménez ◽  
Francisco J. Terán ◽  
Laurence Méchin ◽  
Julio Camarero ◽  
...  

AbstractWe present a detailed study of the angular dependence of the magnetization reversal at room temperature of well characterized epitaxial La0.7Sr0.3MnO3 (001) thin films grown onto SrTiO3 (001) vicinal substrates. The step edges at the substrate surface promote a topological modulation of the films along the step direction, breaking the four-fold magneto crystalline symmetry and favoring a two-fold magnetic anisotropy term. The competition between the biaxial and uniaxial anisotropy is depicted within the framework of the current theory, resulting in a vanishing biaxial contribution. The films hence show the magnetization easy (hard) direction parallel (perpendicular) to the steps direction. The thickness-dependent of both anisotropy and magnetization reversal are discussed in terms of topographic changes.


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