28 research outputs found
Parametric oscillator based on non-linear vortex dynamics in low resistance magnetic tunnel junctions
Full text linkRadiofrequency vortex spin-transfer oscillators based on magnetic tunnel
junctions with very low resistance area product were investigated. A high power
of excitations has been obtained characterized by a power spectral density
containing a very sharp peak at the fundamental frequency and a series of
harmonics. The observed behaviour is ascribed to the combined effect of spin
transfer torque and Oersted-Amp\`ere field generated by the large applied
dc-current. We furthermore show that the synchronization of a vortex
oscillation by applying a ac bias current is mostly efficient when the external
frequency is twice the oscillator fundamental frequency. This result is
interpreted in terms of a parametric oscillator.Comment: 4 pages, 4 figure
Etude électronystagmographique du phénomène de compensation vestibulaire à l’aide de l’épreuve rotatoire pendulaire
Full text linkELECTRONYSTAGMOGRAPHIC EXAMINATION IN PENDULAR STIMULATION. TESTING AND CLINICAL INTERPRETATION
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Reponses electrophysiologiques du systeme auditif aux bruits impulsifs et fatigue auditive consecutive
Get PDFCNRS-CDST / INIST-CNRS - Institut de l'Information Scientifique et TechniqueSIGLEFRFranc
Reponses electrophysiologiques du systeme auditif aux bruits impulsifs et fatigue auditive consecutive
No full textCNRS-CDST / INIST-CNRS - Institut de l'Information Scientifique et TechniqueSIGLEFRFranc
Best compromise between tele supply and modulated rate of back scattered signal in RFID system
No full textConsiderations Sur La Signification Et Les Rapports Du Recrutement Cochleaire Et Vestibulaire
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