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Triple mode-jumping in a spin torque oscillator

Conference paper
Authors Anders J. Eklund
Sohrab R. Sani
S. Majid Mohseni
Johan Persson
B. Gunnar Malm
Johan Åkerman
Published in 2013 22nd International Conference on Noise and Fluctuations, 24-28 June 2013, Montpellier, France
Pages 1-4
ISBN 978-1-4799-0668-0
Publication year 2013
Published at
Pages 1-4
Language en
Subject categories Magnetism, Other electrical engineering, electronics and photonics, Nano Technology


In a nano-contact Co/Cu/NiFe spin torque oscillator, mode-jumping between up to three frequencies within 22.5-24.0 GHz is electrically observed in the time domain. The measurements reveal toggling between two states with differing oscillation amplitude, of which the low-amplitude state is further divided into two rapidly alternating modes. Analysis of the mode dwell time statistics and the total time spent in each mode is carried out, and it is found that in both aspects the balance between the modes is greatly altered with the DC drive current.

Page Manager: Webmaster|Last update: 9/11/2012

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