Magnetization reversal and field annealing effects in perpendicular exchange-biased Co∕Pt multilayers and spin valves with perpendicular magnetization

2006 ◽  
Vol 99 (8) ◽  
pp. 083901 ◽  
Author(s):  
Sebastiaan van Dijken ◽  
Matthew Crofton ◽  
M. Czapkiewicz ◽  
M. Zoladz ◽  
T. Stobiecki
2016 ◽  
Vol 108 (8) ◽  
pp. 082406 ◽  
Author(s):  
J.-C. Rojas-Sánchez ◽  
P. Laczkowski ◽  
J. Sampaio ◽  
S. Collin ◽  
K. Bouzehouane ◽  
...  

2017 ◽  
Vol 9 (7) ◽  
pp. e404-e404 ◽  
Author(s):  
Ren-Ci Peng ◽  
Jia-Mian Hu ◽  
Long-Qing Chen ◽  
Ce-Wen Nan

Abstract By linking the dynamics of local piezostrain to the dynamics of local magnetization, we computationally analyzed the speed of a recently proposed scheme of piezostrain-mediated perpendicular magnetization reversal driven by a voltage pulse in magnetoelectric heterostructures. We used a model heterostructure consisting of an elliptical ultrathin amorphous Co20Fe60B20 on top of a polycrystalline Pb(Zr,Ti)O3 (PZT) thin film. We constructed a diagram showing the speed of perpendicular magnetization reversal as a function of the amplitude of the applied voltage pulse and the stiffness damping coefficient of PZT film. In addition, we investigated the influence of thermal fluctuations on the switching speed. The analyses suggest that the switching time remains well below 10 ns and that the energy dissipation per switching is on the order of femtojoule. The present computational analyses can be generally used to predict the speed of piezostrain-enabled magnetization switching and magnetic domain-wall motion, which critically determines the response time of corresponding piezostrain-enabled spintronic and magnonic devices.


2014 ◽  
Vol 50 (8) ◽  
pp. 1-4 ◽  
Author(s):  
Khalid Javed ◽  
Da Wei Shi ◽  
Syed Shahbaz Ali ◽  
Jun Jiang ◽  
Pan Liu ◽  
...  

2007 ◽  
Vol 310 (2) ◽  
pp. 2018-2019 ◽  
Author(s):  
K. Aoshima ◽  
N. Funabashi ◽  
K. Machida ◽  
Y. Miyamoto ◽  
K. Kuga ◽  
...  

1999 ◽  
Vol 32 (4) ◽  
pp. 395-403 ◽  
Author(s):  
I S Weir ◽  
J N Chapman ◽  
I S Molchanov ◽  
D M Titterington ◽  
J Rose

2019 ◽  
Vol 61 (9) ◽  
pp. 1644
Author(s):  
В.Л. Миронов ◽  
Р.В. Горев ◽  
О.Л. Ермолаева ◽  
Н.С. Гусев ◽  
Ю.В. Петров

We present the experimental magnetization reversal of artificial magnetic skyrmions in a Co/Pt multilayer film with perpendicular magnetization by a magnetic force microscope probe. The sample was a Co/Pt film containing an array of cylindrical regions with reduced anisotropy, which were modified by a focused He+ ion beam. The magnetic state of the sample was monitored by magnetic force microscopy. The local magnetization reversal was performed by the field of magnetic force microscope probe passing over the sample at low height. The effects of magnetostatic interaction between the probe field and skyrmion magnetization in these structures are investigated by micromagnetic simulations.


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