Temperature dependence of uniaxial magnetic anisotropy constants and spin-reorientation transition in the single-ion one-sublattice system

1999 ◽  
Vol 60 (17) ◽  
pp. 12107-12115 ◽  
Author(s):  
Yu Ming-hui ◽  
Zhang Zhi-dong
Keyword(s):  
Magnetic Anisotropy ◽  
Temperature Dependence ◽  
Spin Reorientation ◽  
Uniaxial Magnetic Anisotropy ◽  
Spin Reorientation Transition

scholarly journals Non-monotonic magnetic anisotropy behavior as a function of adsorbate coverage in Fe ultrathin films near the spin reorientation transition

2021 ◽  
Author(s):  
A. Quesada ◽  
G. Chen ◽  
A. T. N'Diaye ◽  
P. Wang ◽  
Y. Z. Wu ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Magnetic Anisotropy ◽  
Ultrathin Films ◽  
Co Adsorption ◽  
Spin Reorientation ◽  
Spin Reorientation Transition ◽  
Out Of Plane

Carbon monoxide (CO) adsorption on ultrathin fcc Fe films is known to result in the rotation of magnetization from out-of-plane to in-plane.

scholarly journals Temperature-Driven Spin Reorientation Transition in CoPt/AlN Multilayer Films

2012 ◽  
Vol 2012 ◽  
pp. 1-7
Author(s):  
Wupeng Cai ◽  
Shinji Muraishi ◽  
Ji Shi ◽  
Yoshio Nakamura ◽  
Wei Liu ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Mean Field ◽  
Multilayer Films ◽  
Spin Reorientation ◽  
Strong Temperature Dependence ◽  
Mean Field Model ◽  
Spin Reorientation Transition ◽  
Magnetoelastic Effect ◽  
Out Of Plane ◽  
Interface Anisotropy

Spin reorientation transition phenomena from out-of-plane to in-plane direction with increasing temperature are observed for the 500°C annealed CoPt/AlN multilayer films with different CoPt layer thicknesses. CoPt-AlN interface and volume anisotropy contributions, favoring out-of-plane and in-plane magnetization, respectively, are separately determined at various temperatures. Interface anisotropy exhibits much stronger temperature dependence than volume contribution, hence the temperature-driven spin reorientation transition occurs. Interface anisotropy in this work consists of Néel interface anisotropy and magnetoelastic effect. Magnetoelastic effect degrades rapidly and changes its sign from positive to negative above 200°C, because of the involvement of stress state in CoPt films with temperature. By contrast, Néel interface anisotropy decays slowly, estimated from a Néel mean field model. Thus, the strong temperature dependence of CoPt-AlN interface anisotropy is dominated by the change of magnetoelastic effect.

Physical and Magnetic Modification of Co/Pt Multilayers by Ion Irradiation

2002 ◽  
Vol 8 (4) ◽  
pp. 319-332 ◽  
Author(s):  
G.J. Kusinski ◽  
G. Thomas
Keyword(s):  
Magnetic Anisotropy ◽  
Ion Irradiation ◽  
Strain Relaxation ◽  
Magnetic Domain ◽  
Perpendicular Magnetic Anisotropy ◽  
Spin Reorientation ◽  
Microstructural Changes ◽  
Spin Reorientation Transition ◽  
Before And After ◽  
Magnetic Modification

The microstructure of Co/Pt multilayers with large perpendicular magnetic anisotropy (PMA) was investigated before and after energetic ion irradiation. No pronounced microstructural changes were detected at ion doses sufficient to completely reduce the PMA and cause a spin reorientation transition to in-plane. Ion-induced displacement of Co and Pt atoms near Co/Pt interfaces lead to local “roughening” and Co layer strain relaxation, reducing the PMA. The magnetic domain confinement induced by ion irradiation and magnetic patterning by selective ion irradiation were also investigated.

Spin Reorientation Transition and Magnetization Reversal Mechanism of Gd Doped FeCo High-Frequency Soft Magnetic Thin Films

2014 ◽  
Vol 924 ◽  
pp. 141-151 ◽  
Author(s):  
Yu Rong An ◽  
Yue Li ◽  
Zhen Wang ◽  
Ya Lu Zuo ◽  
Li Xi
Keyword(s):  
Thin Films ◽  
Magnetic Anisotropy ◽  
Magnetization Reversal ◽  
High Frequency ◽  
Uniaxial Anisotropy ◽  
Spin Reorientation ◽  
Spin Reorientation Transition ◽  
Sputtering Power ◽  
Deposition Power ◽  
Reversal Mechanism

The magnetic FeCoGd thin films with various sputtering power from 10 to 30 W were fabricated on glass substrates by magnetron co-sputtering. The crystal structure of as-deposited FeCoGd thin films was investigated by X-ray diffraction. And an increasing trend of grain size with the increasing sputtering power was shown. When sputtering power is below 30 W, the films exhibited obviously in-plane uniaxial magnetic anisotropy, and the in-plane magnetic anisotropy field Hkdecreased with increasing deposition power. Moreover, good high frequency characteristics were obtained. The magnetization reversal mechanism has been investigated via the in-plane angular dependences of the magnetization and the coercivity. The experimental data points indicated that the magnetization reversal mechanism of FeCoGd film with in-plane uniaxial anisotropy is domain-wall depinning and coherent rotation when the applied field is close to the easy axis and hard axis, respectively. A spin reorientation transition phenomenon was observed when deposition power is larger than 30 W. A stripe domain structure for the sample with 30 W deposition power was developed due to a dominated perpendicular magnetic anisotropy.

scholarly journals Ionic Liquid Gating Control of Spin Reorientation Transition and Switching of Perpendicular Magnetic Anisotropy

2018 ◽  
Vol 30 (30) ◽  
pp. 1801639 ◽  
Author(s):  
Shishun Zhao ◽  
Lei Wang ◽  
Ziyao Zhou ◽  
Chunlei Li ◽  
Guohua Dong ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy ◽  
Spin Reorientation ◽  
Spin Reorientation Transition

Perpendicular magnetic anisotropy and spin reorientation transition in L10 FePt films

2011 ◽  
Vol 109 (7) ◽  
pp. 07B760 ◽  
Author(s):  
Jae Young Ahn ◽  
Nyun Jong Lee ◽  
Tae Hee Kim ◽  
J.-H. Lee ◽  
Anny Michel ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Perpendicular Magnetic Anisotropy ◽  
Spin Reorientation ◽  
Spin Reorientation Transition
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