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Mutual phase-locking in high frequency microwave nanooscillators as function of field angle

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arxiv 0711.1770 v2 pith:ORDVQ7G6 submitted 2007-11-12 cond-mat.mtrl-sci

Mutual phase-locking in high frequency microwave nanooscillators as function of field angle

classification cond-mat.mtrl-sci
keywords anglefieldcurrentdecreasesdegreefrequencyincreasingphase-locking
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We perform a qualitative analysis of phase locking in a double point-contact spinvalve system by solving the Landau-Lifshitz-Gilbert-Slonzewski equation using a hybrid-finite-element method. We show that the phase-locking behaviour depends on the applied field angle. Starting from a low field angle, the locking-current difference between the current through contact A and B increases with increasing angle up to a maximum of 14 mA at 30 degree and it decreases thereafter until it reaches a minimum of 1 mA at 75 degree. The tunability of the phase-lock frequency with current decreases linearly with increasing out of plane angle from 45 to 21 MHz/mA.

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