Journal
EPL
Volume 87, Issue 5, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1209/0295-5075/87/57001
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Funding
- European Communities [IST-016939 TUNAMOS, MRTN-CT2006-035327]
- IWT Flanders
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We present an experimental study of the power spectrum of current-driven magnetization oscillations in MgO tunnel junctions under low bias. We find the existence of narrow spectral lines, down to 8MHz in width at a frequency of 10.7GHz, for small applied fields with clear evidence of an auto-oscillation threshold. Micromagnetics simulations indicate that the excited mode corresponds to an edge mode of the synthetic antiferromagnet. Copyright (C) EPLA, 2009
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