scholarly journals Magnetization Switching in the GdFeCo Films with In-Plane Anisotropy via Femtosecond Laser Pulses

Molecules ◽  
2021 ◽  
Vol 26 (21) ◽  
pp. 6406
Author(s):  
Daria O. Ignatyeva ◽  
Pavel O. Kapralov ◽  
Kiran Horabail Prabhakara ◽  
Hiroki Yoshikawa ◽  
Arata Tsukamoto ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Metal Alloys ◽  
Magnetization Switching ◽  
Small Magnetic Field ◽  
Plane Anisotropy ◽  
All Optical ◽  
Out Of Plane

Ferrimagnetic rare-earth substituted metal alloys GdFeCo were shown to exhibit the phenomenon of all-optical magnetization switching via femtosecond laser pulses. All-optical magnetization switching has been comprehensively investigated in out-of-plane magnetized GdFeCo films; however, the films with the in-plane magnetic anisotropy have not yet been studied in detail. We report experimental observations of the magnetization switching of in-plane magnetized GdFeCo films by means of the femtosecond laser pulses in the presence of a small magnetic field of about 40 µT. The switching effect has a threshold both in the applied magnetic field and in the light intensity.

scholarly journals Two types of all-optical magnetization switching mechanisms using femtosecond laser pulses

2016 ◽  
Vol 94 (6) ◽  
Author(s):  
M. S. El Hadri ◽  
P. Pirro ◽  
C.-H. Lambert ◽  
S. Petit-Watelot ◽  
Y. Quessab ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Magnetization Switching ◽  
All Optical

Terahertz radiation from a shallow incidence-angle InAs emitter in a magnetic field irradiated with femtosecond laser pulses

2001 ◽  
Vol 40 (9) ◽  
pp. 1369 ◽  
Author(s):  
Shingo Ono ◽  
Takeyo Tsukamoto ◽  
Eiji Kawahata ◽  
Takayuki Yano ◽  
Hideyuki Ohtake ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Femtosecond Laser ◽  
Terahertz Radiation ◽  
Incidence Angle ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses

scholarly journals Plasmonic layer-selective all-optical switching of magnetization with nanometer resolution

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
D. O. Ignatyeva ◽  
C. S. Davies ◽  
D. A. Sylgacheva ◽  
A. Tsukamoto ◽  
H. Yoshikawa ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Magnetic Recording ◽  
Optical Switching ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
All Optical ◽  
Polarization Axis ◽  
Linearly Polarized ◽  
All Optical Switching ◽  
Better Than

Abstract All-optical magnetization reversal with femtosecond laser pulses facilitates the fastest and least dissipative magnetic recording, but writing magnetic bits with spatial resolution better than the wavelength of light has so far been seen as a major challenge. Here, we demonstrate that a single femtosecond laser pulse of wavelength 800 nm can be used to toggle the magnetization exclusively within one of two 10-nm thick magnetic nanolayers, separated by just 80 nm, without affecting the other one. The choice of the addressed layer is enabled by the excitation of a plasmon-polariton at a targeted interface of the nanostructure, and realized merely by rotating the polarization-axis of the linearly-polarized ultrashort optical pulse by 90°. Our results unveil a robust tool that can be deployed to reliably switch magnetization in targeted nanolayers of heterostructures, and paves the way to increasing the storage density of opto-magnetic recording by a factor of at least 2.

Magnetic Field-Controlled Shaping of Femtosecond Laser Pulses Reflected from Magnetoplasmonic Crystals

2013 ◽  
Author(s):  
P. P. Vabishchevich ◽  
A.Yu. Frolov ◽  
M.R. Shcherbakov ◽  
A.A. Grunin ◽  
T.V. Dolgova ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses
Sign in / Sign up

Export Citation Format

Share Document