Premium
Pulse Rise Time Dependence of Switching Field of Co/Pt Multilayer Dot
Author(s) -
Kikuchi Nobuaki,
Suyama Yoshihiro,
Okamoto Satoshi,
Kitakami Osamu
Publication year - 2013
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.11569
Subject(s) - rise time , pulse (music) , coaxial , field (mathematics) , magnetization , pulse generator , materials science , pulse duration , perpendicular , amplitude , voltage , magnetic field , electrical engineering , pulse width modulation , coaxial cable , generator (circuit theory) , nuclear magnetic resonance , optoelectronics , optics , physics , engineering , conductor , power (physics) , mathematics , geometry , laser , quantum mechanics , pure mathematics , composite material
SUMMARY A voltage pulse generator for magnetic field application was built using a coaxial cable as a capacitor. The pulse duration was fixed to 10 ns and the pulse field rise time was controlled from 70 ps to 4 ns using low‐pass filters. Magnetization switching experiments were carried out on a Co/Pt multilayer dot with diameter of 300 nm with a perpendicular pulse field. The required pulse field amplitude for magnetization switching is independent of the pulse rise time, suggesting that the thermally activated process is dominant in the perpendicular field geometry. © 2013 Wiley Periodicals, Inc. Electron Comm Jpn, 96(12): 9–14, 2013; Published online in Wiley Online Library ( wileyonlinelibrary.com ). DOI 10.1002/ecj.11569