Reduction in switching current density for current-induced magnetization switching without loss of thermal stability: Effect of perpendicular anisotropy

2009 ◽  
Vol 9 (5) ◽  
pp. 985-988 ◽  
Author(s):  
Hong-Ju Suh ◽  
Kyung-Jin Lee
Keyword(s):  
Thermal Stability ◽  
Current Density ◽  
Perpendicular Anisotropy ◽  
Magnetization Switching ◽  
Switching Current ◽  
Stability Effect

Enhanced switching current density due to resonant precession in current-induced magnetization switching

2007 ◽  
Vol 90 (21) ◽  
pp. 212504 ◽  
Author(s):  
Woojin Kim ◽  
Taek-Dong Lee ◽  
Jang-Eun Lee ◽  
Se-Chung Oh ◽  
Kyung-Ho Shin ◽  
...  
Keyword(s):  
Current Density ◽  
Magnetization Switching ◽  
Switching Current

scholarly journals Thermal stability effect of H4[PVMo11O40]/SiO2

2017 ◽  
Vol 1 (2) ◽  
pp. 25-28 ◽  
Author(s):  
Leni Sinaga ◽  
Aldes Lesbani
Keyword(s):  
Thermal Stability ◽  
Stability Effect

scholarly journals Effect of High Temperature on the Electrochemical and Optical Properties of Emeraldine Salt Doped with DBSA and Sulfuric Acid

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Salma Gul ◽  
Anwar-ul-Haq Ali Shah ◽  
Salma Bilal
Keyword(s):  
Thermal Stability ◽  
Cyclic Voltammetry ◽  
Sulfuric Acid ◽  
Effect Of Temperature ◽  
Visible Spectroscopy ◽  
Emeraldine Salt ◽  
Higher Temperature ◽  
Stability Effect ◽  
Thermal Stability Of ◽  
Comprehensive Study

A comprehensive study of thermally treated polyaniline in its emeraldine salt form is presented here. It offers an understanding of the thermal stability of the polymer. Emeraldine salt was prepared by a novel emulsion polymerization pathway using dodecylbenzene sulfonic acid and sulfuric acid together as dopants. The effect of temperature and heating rate on the degradation of this emeraldine salt was studied via thermogravimetric analysis. The thermally analyzed sample was collected at various temperatures, that is, 250, 490, 500, and 1000°C. The gradual changes in the structure of the emeraldine salt were followed through cyclic voltammetry, Fourier transform infrared spectroscopy, and ultraviolet-visible spectroscopy. Results demonstrate that emeraldine salt shows high thermal stability up to 500°C. This is much higher working temperature for the use of emeraldine salt in higher temperature applications. Further heat treatment seems to induce deprotonation in emeraldine salt. Cyclic voltammetry and ultraviolet-visible spectroscopy revealed that complete deprotonation takes place at 1000°C where it loses its electrical conductivity. It is interesting to note that after the elimination of the dopants, the basic backbone of emeraldine salt was not destroyed. The results reveal that the dopants employed have a stability effect on the skeleton of emeraldine salt.

Field-Free switching of perpendicular magnetization through spin-orbit torque in FePt/[TiN/NiFe]5 multilayers

Nanoscale ◽  
2021 ◽  
Author(s):  
Chao Sun ◽  
Yiyi Jiao ◽  
Chao Zuo ◽  
Xin Hu ◽  
Ying Tao ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Magnetic Materials ◽  
Spin Orbit ◽  
Perpendicular Anisotropy ◽  
Perpendicular Magnetization ◽  
Magnetic Switching ◽  
Thermal Stability Of

In order to maintain thermal stability of SOT devices with nanoscale size, it is desirable to achieve current induced magnetic switching in magnetic materials with high perpendicular anisotropy. In the...

Thermal stability and magnetization switching in perpendicular magnetic tunnel junctions

2020 ◽  
Vol 116 (19) ◽  
pp. 192408 ◽  
Author(s):  
I. Volvach ◽  
J. G. Alzate ◽  
Y.-J. Chen ◽  
A. J. Smith ◽  
D. L. Kencke ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Tunnel Junctions ◽  
Magnetic Tunnel Junctions ◽  
Magnetization Switching

Reversal and thermal stability of ordered moments in nano-rings of perpendicular anisotropy Co/Pd multilayers

2015 ◽  
Vol 48 (29) ◽  
pp. 295005 ◽  
Author(s):  
M Kaur ◽  
M Raju ◽  
D Varandani ◽  
Anurag Gupta ◽  
T D Senguttuvan ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Perpendicular Anisotropy ◽  
Thermal Stability Of

Effects of the Co-Presence of Conflicting Magnetic Anisotropy in Ba Ferrite Particles

2010 ◽  
Vol 67 ◽  
pp. 108-112
Author(s):  
Giancarlo Bottoni
Keyword(s):  
Thermal Stability ◽  
Magnetic Properties ◽  
Magnetic Anisotropy ◽  
Low Temperatures ◽  
Magnetocrystalline Anisotropy ◽  
Shape Anisotropy ◽  
Recording Media ◽  
Magnetization Switching ◽  
Crystalline Anisotropy ◽  
Thermal Stability Of

In Ba ferrite particles magnetocrystalline and shape anisotropies are contemporarily present and conflicting. The strength and evolution of the two anisotropies are studied, through the dependence of the anisotropy constants on temperature. While in pure Ba ferrite particles the anisotropy is uniaxial at all temperatures, since the magnetocrystalline anisotropy clearly prevails on shape anisotropy, in particles modified for employment in recording media the two anisotropies are comparable and at low temperatures the shape anisotropy result stronger than the crystalline anisotropy. Besides the irregular shape of the particles introduces further preferred directions for the magnetization. The Co/Ti-doped particles show a multiple axes anisotropy. The macroscopic magnetic properties are found in relationship with the evolution of the anisotropy. Also the influence that the presence of such multiple anisotropy has on the magnetization switching and on the thermal stability of the magnetization of the Ba ferrite particles is analyzed.

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