Modeling of ferroelectric control of magnetic domain pattern and domain wall properties

2013 ◽  
Vol 113 (13) ◽  
pp. 134102 ◽  
Author(s):  
H. T. Chen ◽  
Y. Ni ◽  
A. K. Soh
Keyword(s):  
Domain Wall ◽  
Magnetic Domain ◽  
Domain Pattern ◽  
Wall Properties

The direct determination of magnetic domain wall profiles using a split detector STEM

1978 ◽  
Vol 36 (1) ◽  
pp. 466-467
Author(s):  
J.N. Chapman ◽  
P.E. Batson ◽  
E.M. Waddell ◽  
R.P. Ferrier
Keyword(s):  
Electron Microscope ◽  
Domain Wall ◽  
Transmission Electron Microscope ◽  
Domain Walls ◽  
Photographic Plate ◽  
Magnetic Domain ◽  
Direct Determination ◽  
Quantitative Information ◽  
Scanning Transmission Electron Microscope ◽  
Transmission Electron

By far the most commonly used mode of Lorentz microscopy in the examination of ferromagnetic thin films is the Fresnel or defocus mode. Use of this mode in the conventional transmission electron microscope (CTEM) is straightforward and immediately reveals the existence of all domain walls present. However, if such quantitative information as the domain wall profile is required, the technique suffers from several disadvantages. These include the inability to directly observe fine image detail on the viewing screen because of the stringent illumination coherence requirements, the difficulty of accurately translating part of a photographic plate into quantitative electron intensity data, and, perhaps most severe, the difficulty of interpreting this data. One solution to the first-named problem is to use a CTEM equipped with a field emission gun (FEG) (Inoue, Harada and Yamamoto 1977) whilst a second is to use the equivalent mode of image formation in a scanning transmission electron microscope (STEM) (Chapman, Batson, Waddell, Ferrier and Craven 1977), a technique which largely overcomes the second-named problem as well.

Numerical Analysis of a Magnetic Domain Wall in a Magnetic Nanocontact

2005 ◽  
Vol 29 (2) ◽  
pp. 116-119
Author(s):  
T. Komine ◽  
T. Takahashi ◽  
R. Sugita ◽  
T. Muranoi ◽  
Y. Hasegawa
Keyword(s):  
Numerical Analysis ◽  
Domain Wall ◽  
Magnetic Domain ◽  
Magnetic Domain Wall

scholarly journals Snell's law for spin waves at a 90° magnetic domain wall

2020 ◽  
Vol 116 (11) ◽  
pp. 112402 ◽  
Author(s):  
Tomosato Hioki ◽  
Rei Tsuboi ◽  
Tom H. Johansen ◽  
Yusuke Hashimoto ◽  
Eiji Saitoh
Keyword(s):  
Domain Wall ◽  
Spin Waves ◽  
Magnetic Domain ◽  
Magnetic Domain Wall ◽  
Snell’S Law ◽  
Snell's Law

scholarly journals Magnetic domain wall creep

2016 ◽  
Vol 19 (2) ◽  
pp. 65-66
Author(s):  
David Bradley
Keyword(s):  
Domain Wall ◽  
Magnetic Domain ◽  
Magnetic Domain Wall

scholarly journals Electric field control of magnetic domain wall motion via modulation of the Dzyaloshinskii-Moriya interaction

2018 ◽  
Vol 4 (12) ◽  
pp. eaav0265 ◽  
Author(s):  
Tomohiro Koyama ◽  
Yoshinobu Nakatani ◽  
Jun’ichi Ieda ◽  
Daichi Chiba
Keyword(s):  
Domain Wall ◽  
Electric Field ◽  
Magnetic Domain ◽  
Domain Wall Motion ◽  
Asymmetric Structure ◽  
Velocity Change ◽  
Spintronic Devices ◽  
Electrical Manipulation ◽  
Substantial Change ◽  
Moriya Interaction

We show that the electric field (EF) can control the domain wall (DW) velocity in a Pt/Co/Pd asymmetric structure. With the application of a gate voltage, a substantial change in DW velocity up to 50 m/s is observed, which is much greater than that observed in previous studies. Moreover, modulation of a DW velocity exceeding 100 m/s is demonstrated in this study. An EF-induced change in the interfacial Dzyaloshinskii-Moriya interaction (DMI) up to several percent is found to be the origin of the velocity modulation. The DMI-mediated velocity change shown here is a fundamentally different mechanism from that caused by EF-induced anisotropy modulation. Our results will pave the way for the electrical manipulation of spin structures and dynamics via DMI control, which can enhance the performance of spintronic devices.

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