scholarly journals Effect of annealing on magnetic properties in ferrimagnetic GdCo alloy films with bulk perpendicular magnetic anisotropy

AIP Advances ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 125204 ◽  
Author(s):  
Kohei Ueda ◽  
Aik Jun Tan ◽  
Geoffrey S. D. Beach
Keyword(s):  
Magnetic Properties ◽  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy ◽  
Alloy Films

Perpendicular Magnetic Anisotropy and Atomic Ordering in FePd, Fe50Pd50-xPtx Alloy Films

2014 ◽  
Vol 215 ◽  
pp. 242-245
Author(s):  
Evgeny M. Artemyev ◽  
Lev E. Yakimov
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Phase Composition ◽  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy ◽  
Magnetic Data ◽  
Atomic Order ◽  
Data Recording ◽  
Alloy Films ◽  
Ordered Alloys

Phase composition, crystal structure and magnetic properties of ordering FePd and Fe50Pd50-xPtx(х = 1-10 atomic %) alloy films were studied. Spectral dependencies of Faraday rotation and optical absorption were measured. We studied how thermal treatment affects crystal structure, magnetization and coercive force in ordered alloys and how the degree of atomic order affects the value of perpendicular magnetic anisotropy. It was shown that near equiatomic ordered FePd and Fe50Pd50-xPtx(х = 1-10 at. %) alloy films can be used as medium for magnetic and thermo-magnetic data recording.

Investigation and Effective Control of Perpendicular Magnetic Anisotropy for TbCo Films with Different Underlayers

SPIN ◽  
2016 ◽  
Vol 06 (03) ◽  
pp. 1650009 ◽  
Author(s):  
Minghong Tang ◽  
Shaohai Chen ◽  
Xiangli Zhang ◽  
Zongzhi Zhang ◽  
Q. Y. Jin
Keyword(s):  
Magnetic Properties ◽  
Magnetic Anisotropy ◽  
Saturation Magnetization ◽  
Magnetic Moments ◽  
Perpendicular Magnetic Anisotropy ◽  
Effective Control ◽  
Experimental Measurements ◽  
Alloy Films ◽  
Micromagnetic Simulations

We performed a detailed study on the perpendicular magnetic anisotropy (PMA) of TbCo film by using two kinds of nonmagnetic underlayers, Ta and Ta/Cu with different thicknesses. We found that for both the Tb-rich and Co-rich TbCo alloy films, the PMA strength decreases considerably with the increase of Ta underlayer thickness, while their net saturation magnetization [Formula: see text] exhibit opposite varying trends. The [Formula: see text] value continues to increase for the Co-rich TbCo samples while decrease for the Tb-rich films. Interestingly, an additional Cu layer inserted between the Ta and TbCo layers can efficiently recover the PMA and [Formula: see text]. We attribute such observed variation behaviors of magnetic properties to the increased disordering of Tb magnetic moments at the Ta/TbCo interface, which has been verified by both experimental measurements and micromagnetic simulations.

Ni thickness influence on magnetic properties (Co/Ni/Co/Pt) multilayers with perpendicular magnetic anisotropy

2017 ◽  
Vol 441 ◽  
pp. 585-589 ◽  
Author(s):  
R. Sbiaa ◽  
I.A. Al-Omari ◽  
M. Al Bahri ◽  
P.R. Kharel ◽  
M. Ranjbar ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy

Perpendicular Magnetic Anisotropy in Pt/Co/AlO Trilayer Structures Depending on AlO Thickness and Fabrication Method

2014 ◽  
Vol 616 ◽  
pp. 247-251
Author(s):  
Tim Yang ◽  
Z.Q. Wang ◽  
Makoto Kohda ◽  
Takeshi Seki ◽  
Koki Takanashi ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetron Sputtering ◽  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy ◽  
Atomic Layer ◽  
Rf Magnetron Sputtering ◽  
Layer Deposition ◽  
Significant Damage ◽  
Arbitrary Thickness ◽  
High Kinetic Energy

We investigate the perpendicular magnetic anisotropy dependence on the AlO capping layer in Pt/Co/AlO films. AlO was deposited on Pt/Co films by RF magnetron sputtering and atomic layer deposition (ALD) with varying thickness. It is found that the prolonged deposition of thick AlO layers by RF magnetron sputtering causes significant damage to the Pt/Co underneath while AlO layers formed by ALD can be of arbitrary thickness with no damage to the magnetic properties of the films. The decline of the magnetic properties can be attributed to the method of AlO deposition for each process. In the RF magnetron sputtering, AlO atoms with high kinetic energy are ejected from a sputter target resulting in the degradation of Pt/Co films, while the process of deposition of AlO by ALD is governed by a series of chemically reactive condensations allowing for arbitrary deposition thickness of AlO.

Magnetooptical properties of alloy films Co–Pd with perpendicular magnetic anisotropy

1999 ◽  
Vol 203 (1-3) ◽  
pp. 244-246 ◽  
Author(s):  
E Gan'shina ◽  
V Guschin ◽  
S Kirov ◽  
O Shabanova ◽  
A Tselev
Keyword(s):  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy ◽  
Alloy Films

Perpendicular magnetic anisotropy and magneto‐optical properties of evaporated (Fe,Co)–rare‐earth amorphous binary alloy films

1988 ◽  
Vol 64 (10) ◽  
pp. 5492-5494 ◽  
Author(s):  
A. Yoshihara ◽  
M. Takahashi ◽  
T. Shimamori ◽  
T. Wakiyama ◽  
M. Miyazaki ◽  
...  
Keyword(s):  
Optical Properties ◽  
Rare Earth ◽  
Magnetic Anisotropy ◽  
Binary Alloy ◽  
Perpendicular Magnetic Anisotropy ◽  
Alloy Films ◽  
Amorphous Binary Alloy
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