Direct Observation of Domain Wall Motion in Co/Pt Wire under Gate Electric Field

2013 ◽  
Vol 52 (7R) ◽  
pp. 070206 ◽  
Author(s):  
Haruka Kakizakai ◽  
Kihiro Yamada ◽  
Masashi Kawaguchi ◽  
Kazutoshi Shimamura ◽  
Shunsuke Fukami ◽  
...  
2009 ◽  
Vol 152-153 ◽  
pp. 143-146 ◽  
Author(s):  
A. Logginov ◽  
G. Meshkov ◽  
A. Nikolaev ◽  
E. Nikolaeva ◽  
A. Pyatakov ◽  
...  

The room temperature magnetoelectric effect was observed in epitaxial iron garnet films that appeared as magnetic domain wall motion induced by electric field. The films grown on gadolinium-gallium garnet substrates with various crystallographic orientations were examined. The effect was observed in (210) and (110) films and was not observed in (111) films. Dynamic observation of the domain wall motion in 800 kV/cm electric field pulses gave the domain wall velocity in the range 30÷50 m/s. Similar velocity was achieved in magnetic field pulse about 50 Oe.


2009 ◽  
Vol 51 (11) ◽  
pp. 2415-2420 ◽  
Author(s):  
A. L. Andreev ◽  
I. N. Kompanets ◽  
T. B. Andreeva ◽  
Yu. P. Shumkina

2008 ◽  
Vol 92 (11) ◽  
pp. 112509 ◽  
Author(s):  
Tien-Kan Chung ◽  
Gregory P. Carman ◽  
Kotekar P. Mohanchandra

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Kévin J. A. Franke ◽  
Ben Van de Wiele ◽  
Yasuhiro Shirahata ◽  
Sampo J. Hämäläinen ◽  
Tomoyasu Taniyama ◽  
...  

Author(s):  
Yasuhide Shindo ◽  
Takayoshi Sasakura ◽  
Fumio Narita

This paper studies the dynamic electromechanical response of multilayered piezoelectric composites under ac electric fields from room to cryogenic temperatures for fuel injector applications. A shift in the morphotropic phase boundary (MPB) between the tetragonal and rhombohedral/monoclinic phases with decreasing temperature was determined using a thermodynamic model, and the temperature dependent piezoelectric coefficients were obtained. Temperature dependent coercive electric field was also predicted based on the domain wall energy. A phenomenological model of domain wall motion was then used in a finite element computation, and the nonlinear electromechanical fields of the multilayered piezoelectric composites from room to cryogenic temperatures, due to the domain wall motion and shift in the MPB, were calculated. In addition, experimental results on the ac electric field induced strain were presented to validate the predictions.


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