Pulse rise time dependence of switching field of co/pt multilayer dot

Nobuaki Kikuchi, Yoshihiro Suyama, Satoshi Okamoto, Osamu Kitakami

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)9-14
Number of pages6
JournalElectronics and Communications in Japan
Issue number12
Publication statusPublished - 2013 Dec


  • magnetization dynamics
  • pulse field

ASJC Scopus subject areas

  • Signal Processing
  • Physics and Astronomy(all)
  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Applied Mathematics


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