Remanent Magnetization States in Soft Magnetic Nanowires

2006 ◽  
Vol 42 (10) ◽  
pp. 3063-3065 ◽  
Author(s):  
N.A. Usov ◽  
A. Zhukov ◽  
J. Gonzalez
Keyword(s):  
Remanent Magnetization ◽  
Magnetic Nanowires ◽  
Soft Magnetic

Surface magnetization processes in soft magnetic nanowires

2010 ◽  
Vol 107 (9) ◽  
pp. 09E315 ◽  
Author(s):  
N. Lupu ◽  
M. Lostun ◽  
H. Chiriac
Keyword(s):  
Magnetic Nanowires ◽  
Soft Magnetic ◽  
Surface Magnetization ◽  
Magnetization Processes

scholarly journals Modeling Propulsion of Soft Magnetic Nanowires

2020 ◽  
Vol 7 ◽  
Author(s):  
Yoni Mirzae ◽  
Boris Y. Rubinstein ◽  
Konstantin I. Morozov ◽  
Alexander M. Leshansky
Keyword(s):  
Magnetic Nanowires ◽  
Soft Magnetic

scholarly journals Micromagnetic study of soft magnetic nanowires

AIP Advances ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 125047 ◽  
Author(s):  
F. Ahmadi ◽  
M. J. Donahue ◽  
Y. Sozer ◽  
I. Tsukerman
Keyword(s):  
Magnetic Nanowires ◽  
Soft Magnetic

Characterization of Magnetic Properties of Nanocrystalline Ni and Ni-15%Fe Alloy

2012 ◽  
Vol 706-709 ◽  
pp. 1642-1646 ◽  
Author(s):  
S. Arabi ◽  
G. Avramovic-Cingara ◽  
G. Palumbo ◽  
Uwe Erb ◽  
M. Niewczas
Keyword(s):  
Magnetic Properties ◽  
Coercive Force ◽  
Saturation Magnetization ◽  
Remanent Magnetization ◽  
Grain Structure ◽  
Soft Magnetic Properties ◽  
Soft Magnetic ◽  
Average Grain Size ◽  
Anisotropy Model

Magnetic properties of nanocrystalline Ni and Ni-Fe alloys produced by electrodeposition have been studied at 2K and at 298K. Ni and Ni-15%Fe alloy deposits show nano-grain structure with the average grain size of 23 nm and 12 nm, respectively. Both materials exhibit soft magnetic properties. Nanocrystalline Ni at 2K shows saturation magnetization, coercive force, and remanent magnetization of 57 emu/gr, 101 Oe, and 16 emu/gr respectively. Nanocrystalline Ni-15%Fe alloy exhibits superior soft magnetic properties than Ni with corresponding saturation magnetization, coercive force, and remanent magnetization at 2K of 96 emu/gr, 6 Oe, and 4 emu/gr respectively. The magnetic properties and their dependence upon temperature data are interpreted in terms of the Herzer random anisotropy model for nanocrystalline materials.

Microstructure in soft magnetic E3 (S1, Al) (Sendust) alloys

1988 ◽  
Vol 46 ◽  
pp. 770-771
Author(s):  
June D. Kim
Keyword(s):  
Electron Microscopy ◽  
Magnetic Properties ◽  
Ternary Phase Diagram ◽  
Vertical Tube ◽  
Vacuum Induction Melting ◽  
Induction Melting ◽  
Soft Magnetic ◽  
Quenching Temperature ◽  
Thin Foils ◽  
Vertical Tube Furnace

Iron-base alloys containing 8-11 wt.% Si, 4-8 wt.% Al, known as “Sendust” alloys, show excellent soft magnetic properties. These magnetic properties are strongly dependent on heat treatment conditions, especially on the quenching temperature following annealing. But little has been known about the microstructure and the Fe-Si-Al ternary phase diagram has not been established. In the present investigation, transmission electron microscopy (TEM) has been used to study the microstructure in a Sendust alloy as a function of temperature.An Fe-9.34 wt.% Si-5.34 wt.% Al (approximately Fe3Si0.6Al0.4) alloy was prepared by vacuum induction melting, and homogenized at 1,200°C for 5 hrs. Specimens were heat-treated in a vertical tube furnace in air, and the temperature was controlled to an accuracy of ±2°C. Thin foils for TEM observation were prepared by jet polishing using a mixture of perchloric acid 15% and acetic acid 85% at 10V and ∼13°C. Electron microscopy was performed using a Philips EM 301 microscope.

Grain separation enhanced magnetic coercivity in Pt/Co multilayers.

1993 ◽  
Vol 51 ◽  
pp. 1038-1039 ◽  
Author(s):  
G.A. Bertero ◽  
R. Sinclair
Keyword(s):  
Remanent Magnetization ◽  
Strong Influence ◽  
Uniaxial Anisotropy ◽  
Magnetic Coupling ◽  
Recording Media ◽  
Magnetic Media ◽  
Signal To Noise ◽  
Out Of Plane ◽  
Longitudinal Recording ◽  
The Relationship

Pt/Co multilayers displaying perpendicular (out-of-plane) magnetic anisotropy and 100% perpendicular remanent magnetization are strong candidates as magnetic media for the next generation of magneto-optic recording devices. The magnetic coercivity, Hc, and uniaxial anisotropy energy, Ku, are two important materials parameters, among others, in the quest to achieving higher recording densities with acceptable signal to noise ratios (SNR). The relationship between Ku and Hc in these films is not a simple one since features such as grain boundaries, for example, can have a strong influence on Hc but affect Ku only in a secondary manner. In this regard grain boundary separation provides a way to minimize the grain-to-grain magnetic coupling which is known to result in larger coercivities and improved SNR as has been discussed extensively in the literature for conventional longitudinal recording media.We present here results from the deposition of two Pt/Co/Tb multilayers (A and B) which show significant differences in their coercive fields.

Sign in / Sign up

Export Citation Format

Share Document