Magnetic Reversal and Temperature Dependence of Magnetic Properties in Sm–(Co,Cu)/Fe Exchange Spring Multilayer Films

2011 ◽  
Vol 47 (10) ◽  
pp. 2792-2795 ◽  
Author(s):  
Jian Zhang ◽  
Ji-Zhong Song ◽  
Yun Zhang ◽  
Fang Wang ◽  
Bi-Cheng Chen ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Temperature Dependence ◽  
Multilayer Films ◽  
Magnetic Reversal ◽  
Exchange Spring

scholarly journals Curie temperature dependence of magnetic properties of CoNi/Pt multilayer films

1996 ◽  
Vol 156 (1-3) ◽  
pp. 296-298 ◽  
Author(s):  
Q. Meng ◽  
W.P. van Drent ◽  
J.C. Lodder ◽  
Th.J.A. Popma
Keyword(s):  
Magnetic Properties ◽  
Curie Temperature ◽  
Temperature Dependence ◽  
Multilayer Films

Structures and Magnetic Properties of Fe/Co Multilayer Films

1988 ◽  
Vol 27 (Part 2, No. 11) ◽  
pp. L2105-L2107 ◽  
Author(s):  
Matahiro Komuro ◽  
Yuzoo Kozono ◽  
Shinji Narishige ◽  
Masanobu Hanazono ◽  
Yutaka Sugita
Keyword(s):  
Magnetic Properties ◽  
Multilayer Films

Magnetic properties and recording performance of multilayer films of CoCrTa, CoCrPtTa, and CoCrPtTa with CoCrPtB

1994 ◽  
Vol 30 (6) ◽  
pp. 4011-4013 ◽  
Author(s):  
L.W. Song ◽  
R.A. Gardner ◽  
S.K. McLaurin ◽  
M. Sedighi
Keyword(s):  
Magnetic Properties ◽  
Multilayer Films

Effects of Ta2O5 addition on the microstructure and temperature dependence of magnetic properties of MnZn ferrites

2009 ◽  
Vol 321 (5) ◽  
pp. 438-441 ◽  
Author(s):  
Lezhong Li ◽  
Zhongwen Lan ◽  
Zhong Yu ◽  
Ke Sun ◽  
Ming Luo ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Temperature Dependence ◽  
Mnzn Ferrites

Temperature dependence of the magnetic properties of mono-dispersed Co0.5Zn0.5Fe2O4 microtubes derived from different templates

2018 ◽  
Vol 30 (3) ◽  
pp. 2809-2820
Author(s):  
Peng-zhao Gao ◽  
Zhi-bo Huang ◽  
Hang-bo Zheng ◽  
Xiao-pan Liu ◽  
Jin Wen ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Temperature Dependence

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.

Annealing induced compositional changes in SmCo5/Fe/SmCo5 exchange spring trilayers and its impact on magnetic properties

2013 ◽  
Vol 574 ◽  
pp. 191-195 ◽  
Author(s):  
P. Saravanan ◽  
Jen-Hwa Hsu ◽  
G.L.N. Reddy ◽  
Sanjiv Kumar ◽  
S.V. Kamat
Keyword(s):  
Magnetic Properties ◽  
Exchange Spring ◽  
Compositional Changes

scholarly journals Impact of ZrO2 Additive on Microstructure, Magnetic Properties, and Temperature Dependence of the Initial Permeability of LiTiZn Ferrite Ceramics

2021 ◽  
Author(s):  
Andrey Malyshev ◽  
Anna B. Petrova ◽  
Anatoly P. Surzhikov
Keyword(s):  
Magnetic Properties ◽  
Temperature Dependence ◽  
Defect Structure ◽  
Initial Permeability ◽  
Experimental Temperature ◽  
Mathematical Treatment ◽  
Experimental Temperature Dependence ◽  
Average Grain Size ◽  
Soft Ferrite ◽  
Microstructure And Magnetic Properties

Abstract The effect of the diamagnetic ZrO2 addition on the microstructure and magnetic properties of LiTiZn ferrite ceramics, including the shape and parameters of the temperature dependence of the initial permeability, has been investigated. The defect structure of ferrite ceramic samples is assessed according to our earlier proposed method based on mathematical treatment of the experimental temperature dependencies of the initial permeability. The method is recommended for defects monitoring of soft ferrite ceramics and ferrite products. It was found that the defect structure of ferrite ceramics increased by 350% with an increase in the concentration of the ZrO2 additive in the range of (0–0.5) wt.%. In this case, for the same samples, the increase in the true physical broadening of reflections is only 20%, and the coercive force by 50%. Simultaneously, the maximum of the experimental temperature dependence of the initial permeability dropped by 45%. The microstructure of all samples is characterized with a similar average grain size according to the SEM data. However, samples with the 0.5wt.% of ZrO2 are characterized by the formation of conglomerates. A linear relationship was obtained between the defect structure and the width of the reflections, which indicates that this parameter is related to the elastic stress of ferrite ceramics.

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