Thickness-Dependent Perpendicular Magnetic Anisotropy and Gilbert Damping in Hf/Co20Fe60B20/MgO Heterostructures

2018 ◽  
Vol 10 (4) ◽  
Author(s):  
James Lourembam ◽  
Abhijit Ghosh ◽  
Minggang Zeng ◽  
Seng Kai Wong ◽  
Qi Jia Yap ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy ◽  
Gilbert Damping

scholarly journals Strain-induced perpendicular magnetic anisotropy and Gilbert damping of Tm3Fe5O12 thin films

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Oana Ciubotariu ◽  
Anna Semisalova ◽  
Kilian Lenz ◽  
Manfred Albrecht
Keyword(s):  
Film Thickness ◽  
Magnetic Anisotropy ◽  
Tensile Strain ◽  
Easy Axis ◽  
Perpendicular Magnetic Anisotropy ◽  
Gilbert Damping ◽  
Sample Plane ◽  
Iron Garnets ◽  
Out Of Plane ◽  
Magnetic Easy Axis

AbstractIn the attempt of implementing iron garnets with perpendicular magnetic anisotropy (PMA) in spintronics, the attention turned towards strain-grown iron garnets. One candidate is Tm3Fe5O12 (TmIG) which possesses an out-of-plane magnetic easy axis when grown under tensile strain. In this study, the effect of film thickness on the structural and magnetic properties of TmIG films including magnetic anisotropy, saturation magnetization, and Gilbert damping is investigated. TmIG films with thicknesses between 20 and 300 nm are epitaxially grown by pulsed laser deposition on substituted-Gd3Ga5O12(111) substrates. Structural characterization shows that films thinner than 200 nm show in-plane tensile strain, thus exhibiting PMA due to strain-induced magnetoelastic anisotropy. However, with increasing film thickness a relaxation of the unit cell is observed resulting in the rotation of the magnetic easy axis towards the sample plane due to the dominant shape anisotropy. Furthermore, the Gilbert damping parameter is found to be in the range of 0.02 ± 0.005.

Spin-Resolved Contribution to Perpendicular Magnetic Anisotropy and Gilbert Damping in Interface-Engineered Fe/MgAl2O4 Heterostructures

2020 ◽  
Vol 14 (6) ◽  
Author(s):  
Ruma Mandal ◽  
Qingyi Xiang ◽  
Keisuke Masuda ◽  
Yoshio Miura ◽  
Hiroaki Sukegawa ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy ◽  
Gilbert Damping

Laser-Induced Fast Magnetization Precession and Gilbert Damping for CoCrPt Alloy Thin Films with Perpendicular Magnetic Anisotropy

2010 ◽  
Vol 3 (12) ◽  
pp. 123001 ◽  
Author(s):  
Shigemi Mizukami ◽  
Daisuke Watanabe ◽  
Takahide Kubota ◽  
Xianmin Zhang ◽  
Hiroshi Naganuma ◽  
...  
Keyword(s):  
Thin Films ◽  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy ◽  
Gilbert Damping ◽  
Magnetization Precession

Gilbert damping in asymmetric MgO(Ta)/CoFeB/Ta(MgO) structures with perpendicular magnetic anisotropy

2016 ◽  
Vol 16 (4) ◽  
pp. 481-485 ◽  
Author(s):  
Jeong-Woo Sohn ◽  
Hyon-Seok Song ◽  
Ji-Wan Kim ◽  
Il-Jae Shin ◽  
Byoung-Chul Min ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy ◽  
Gilbert Damping

TEM Study of Co/Pd and Co/Au Multilayers

1993 ◽  
Vol 51 ◽  
pp. 1036-1037
Author(s):  
A.E.M. De Veirman ◽  
F.J.G. Hakkens ◽  
W.M.J. Coene ◽  
F.J.A. den Broeder
Keyword(s):  
Magnetic Anisotropy ◽  
Ion Beam ◽  
Perpendicular Magnetic Anisotropy ◽  
Optical Recording ◽  
Magnetic Multilayer ◽  
Ion Beam Sputtering ◽  
Cross Sectional ◽  
Transmission Electron ◽  
Beam Sputtering ◽  
Substrate Temperatures

There is currently great interest in magnetic multilayer (ML) thin films (see e.g.), because they display some interesting magnetic properties. Co/Pd and Co/Au ML systems exhibit perpendicular magnetic anisotropy below certain Co layer thicknesses, which makes them candidates for applications in the field of magneto-optical recording. It has been found that the magnetic anisotropy of a particular system strongly depends on the preparation method (vapour deposition, sputtering, ion beam sputtering) as well as on the substrate, underlayer and deposition temperature. In order to get a better understanding of the correlation between microstructure and properties a thorough cross-sectional transmission electron microscopy (XTEM) study of vapour deposited Co/Pd and Co/Au (111) MLs was undertaken (for more detailed results see ref.).The Co/Pd films (with fixed Pd thickness of 2.2 nm) were deposited on mica substrates at substrate temperatures Ts of 20°C and 200°C, after prior deposition of a 100 nm Pd underlayer at 450°C.

Effects of ion irradiation on epitaxial Cu/Ni/Cu(001) with perpendicular magnetic anisotropy

2002 ◽  
Vol 81 (21) ◽  
pp. 4017-4019 ◽  
Author(s):  
T. G. Kim ◽  
Y. H. Shin ◽  
J. H. Song ◽  
M. C. Sung ◽  
I. S. Kim ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Ion Irradiation ◽  
Perpendicular Magnetic Anisotropy

scholarly journals Interfacial Dzyaloshinskii-Moriya Interaction, Perpendicular Magnetic Anisotropy and damping in CoFeB/oxide-based systems

2021 ◽  
pp. 1-1
Author(s):  
I. Benguettat-El Mokhtari ◽  
Y. Roussigne ◽  
S. M. Cherif ◽  
S. Auffret ◽  
C. Baraduc ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy ◽  
Moriya Interaction
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