scholarly journals Hysteresis-free magnetization reversal of exchange-coupled bilayers with finite magnetic anisotropy

2020 ◽  
Vol 102 (1) ◽  
Author(s):  
Christoph Vogler ◽  
Michael Heigl ◽  
Andrada-Oana Mandru ◽  
Birgit Hebler ◽  
Miguel Marioni ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Magnetization Reversal ◽  
Coupled Bilayers

Magnetization dynamics of irradiation-fabricated perpendicularly magnetized dots inside a softer magnetic matrix

2003 ◽  
Vol 777 ◽  
Author(s):  
T. Devolder ◽  
M. Belmeguenai ◽  
C. Chappert ◽  
H. Bernas ◽  
Y. Suzuki
Keyword(s):  
Domain Wall ◽  
Magnetic Anisotropy ◽  
Magnetization Reversal ◽  
Ion Irradiation ◽  
Magnetic Nanostructures ◽  
Magnetic Storage ◽  
Exchange Field ◽  
Static Magnetization ◽  
Specific Domain ◽  
Helium Ion

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.

Structure and magnetization reversal mechanism in L10 FePt films with perpendicular magnetic anisotropy

2012 ◽  
Vol 520 (17) ◽  
pp. 5746-5751 ◽  
Author(s):  
S.J. Zhang ◽  
Jian-Guo Zheng ◽  
Z. Shi ◽  
S.M. Zhou ◽  
L. Sun ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Magnetization Reversal ◽  
Perpendicular Magnetic Anisotropy ◽  
Reversal Mechanism

Magnetic anisotropy and magnetization reversal of La0.67Sr0.33MnO3 thin films on SrTiO3(110)

2010 ◽  
Vol 108 (10) ◽  
pp. 103906 ◽  
Author(s):  
Hans Boschker ◽  
Jaap Kautz ◽  
Evert P. Houwman ◽  
Gertjan Koster ◽  
Dave H. A. Blank ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Anisotropy ◽  
Magnetization Reversal

Heterojunction-induced magnetic anisotropy and magnetization reversal of Ni wires on LiNbO3 substrate

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

Magnetic anisotropy and magnetization reversal processes in Pt/Co/Pt films

2003 ◽  
Vol 260 (1-2) ◽  
pp. 231-243 ◽  
Author(s):  
M. Kisielewski ◽  
A. Maziewski ◽  
M. Tekielak ◽  
J. Ferré ◽  
S. Lemerle ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Magnetization Reversal ◽  
Pt Films

Magnetic anisotropy and magnetization reversal in Ga1−xMnxAs layers studied by polarized neutron reflectometry

2005 ◽  
Vol 97 (12) ◽  
pp. 123909 ◽  
Author(s):  
Jean-Louis Primus ◽  
Helmut Fritzsche ◽  
Mathieu Malfait ◽  
Margriet J. Van Bael ◽  
Jo De Boeck ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Magnetization Reversal ◽  
Neutron Reflectometry ◽  
Polarized Neutron ◽  
Polarized Neutron Reflectometry

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
Keyword(s):  
Magnetic Anisotropy ◽  
Magnetization Reversal
Sign in / Sign up

Export Citation Format

Share Document