Magnetization reversal induced by in-plane current in Ta/CoFeB/MgO structures with perpendicular magnetic easy axis

2014 ◽  
Vol 115 (17) ◽  
pp. 17C714 ◽  
Author(s):  
C. Zhang ◽  
M. Yamanouchi ◽  
H. Sato ◽  
S. Fukami ◽  
S. Ikeda ◽  
...  
Keyword(s):  
Magnetization Reversal ◽  
Easy Axis ◽  
Magnetic Easy Axis

Expansion and Collapse of Domains With Reverse Magnetization in (Ga,Mn)As Epilayers With Perpendicular Magnetic Easy Axis

2007 ◽  
Vol 43 (6) ◽  
pp. 3022-3024 ◽  
Author(s):  
A. Dourlat ◽  
C. Gourdon ◽  
V. Jeudy ◽  
C. Testelin ◽  
K. Khazen ◽  
...  
Keyword(s):  
Easy Axis ◽  
Magnetic Easy Axis ◽  
Reverse Magnetization

scholarly journals Influence of the electrodeposition potential on the crystallographic structure and effective magnetic easy axis of cobalt nanowires

RSC Advances ◽  
2016 ◽  
Vol 6 (17) ◽  
pp. 14266-14272 ◽  
Author(s):  
M. I. Irshad ◽  
N. M. Mohamed ◽  
M. Z. Abdullah ◽  
M. S. M. Saheed ◽  
A. Mumtaz ◽  
...  
Keyword(s):  
Easy Axis ◽  
Aluminium Oxide ◽  
Deposition Potential ◽  
Crystallographic Structure ◽  
Cobalt Nanowires ◽  
Magnetic Easy Axis

Cobalt nanowires (NWs) have been synthesized by electrodeposition inside the pores of anodized aluminium oxide templates, at different values of applied deposition potential.

scholarly journals Easy axis magnetization reversal in cobalt antidot arrays

2008 ◽  
Vol 103 (7) ◽  
pp. 07D509 ◽  
Author(s):  
E. Mengotti ◽  
L. J. Heyderman ◽  
F. Nolting ◽  
B. R. Craig ◽  
J. N. Chapman ◽  
...  
Keyword(s):  
Magnetization Reversal ◽  
Easy Axis ◽  
Antidot Arrays

Fabrication of L10-PdCoFe nanocrystalline particles with tilted magnetic easy axis

2007 ◽  
Vol 91 (19) ◽  
pp. 193106 ◽  
Author(s):  
András Kovács ◽  
Yoshihiko Hirotsu
Keyword(s):  
Easy Axis ◽  
Nanocrystalline Particles ◽  
Magnetic Easy Axis

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.

Peculiarities of magnetic moment switching in the φ(0) junction

2021 ◽  
Author(s):  
Toktar Belgibayev ◽  
Yury Shukrinov ◽  
Andrej Plecenik ◽  
Jiri Pechousek ◽  
Cestmir Burdik
Keyword(s):  
Josephson Junction ◽  
Magnetic Moment ◽  
Magnetization Reversal ◽  
Characteristic Frequency ◽  
Easy Axis ◽  
Critical Value ◽  
Model Parameters ◽  
Memory Element ◽  
Superconducting Current ◽  
A Current

Abstract We have investigated the dynamics of magnetization under a current pulse in a φ0 - junction with a direct coupling between the magnetic moment and the superconducting current. The correspondence between the magnetization value at the end of the pulse mz * and the realization of the magnetization reversal along the easy axis of the ferromagnetic is considered. The crucial influence of the ratio w of the ferromagnetic frequency to the characteristic frequency of the Josephson junction on the results of reversal predictions is demonstrated. Effect of w magnitude on the manifestation of periodicity bands in the mz * dependence on the model parameters is shown. There is a critical value of the Gilbert damping, above which the magnetization reversal is not realized. It is shown that at small w the magnitude mz * can be as a criterion of magnetization reversal. I.e., if mz * <0, the magnetization reversal would happen with 100 percent probability. The results can be used in various areas of superconducting spintronics, in particular, to create a memory element based on the Josephson $ {\varphi_0} $ junction

scholarly journals Pressure Effects on the Magnetic Phase Diagram of the CeNMSb2 (NM: Au and Ag): A DFT Study

Materials ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2237
Author(s):  
Mowafaq Mohammad Alsardia ◽  
Jaekyung Jang ◽  
Joo Yull Rhee
Keyword(s):  
Ground State ◽  
Noble Metals ◽  
Easy Axis ◽  
Magnetic Phase ◽  
Magnetic Phase Diagram ◽  
Pressure Effects ◽  
Spin Orbit ◽  
Magnetic Ground State ◽  
Magnetic Easy Axis ◽  
Spin Orbit Interactions

We explore the influence of pressure on the magnetic ground state of the heavy-fermion antiferromagnet (ferromagnet) CeAuSb 2 (CeAgSb 2 ) using first-principles calculations. The total-energy differences obtained by including the spin-orbit interactions and the on-site Coulomb potential for the Ce-derived 4f-orbitals are necessary to realize the accurate magnetic ground state of CeNMSb 2 (NM: Au and Ag). According to our results, the appearance of a new magnetic phase of CeAuSb 2 (CeAgSb 2 ) at the pressure of 2.1 GPa (3.5 GPa) is due to the rotation of the magnetic easy axis from the <001> to the <100> direction. Additionally, our data confirm that CeAgSb 2 is antiferromagnetic (AFM) above a critical pressure P c , and such a tendency is expected for CeAuSb 2 and remains to be seen. Through the spin-orbit-coupling Hamiltonian and detailed information on the occupation of individual 4f-orbitals of the Ce atom obtained by the electronic-structure calculations, we can deduce the rotation of the magnetic easy axis upon the application of pressure. According to the present and previous studies, the differences among the magnetic properties of CeNMSb 2 (NM: Cu, Ag and Au) compounds are not due to the different noble metals, but due to the subtle differences in the relative position of Ce atoms and, in turn, different occupations of Ce 4f-orbitals.

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