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Content Provider | IEEE Xplore Digital Library |
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Author | Serpico, C. Bonin, R. Bertotti, G. D'Aquino, M. Mayergoyz, I.D. |
Copyright Year | 1965 |
Abstract | We study magnetization dynamics in spin-transfer devices subject to DC and microwave injected currents. When the frequency of the injected current is sufficiently close to the self-oscillation frequency of the device, phase-locking occurs. This phenomenon is theoretically studied by using Landau-Lifshitz equation with Slonczewski spin-torque term. By exploiting separation of time scales and using averaging technique, we derive equations which are applicable to the study of phase-locking for arbitrary large magnetization motion. The stability diagram in the (detuning, ac current)-plane is determined and it is shown that phase locking is hysteretic at sufficiently large ac currents. |
Sponsorship | IEEE Magnetics Society |
Starting Page | 3441 |
Ending Page | 3444 |
Page Count | 4 |
File Size | 232333 |
File Format | |
ISSN | 00189464 |
Volume Number | 45 |
Issue Number | 10 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2009-10-01 |
Publisher Place | U.S.A. |
Access Restriction | One Nation One Subscription (ONOS) |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Injection-locked oscillators Frequency Equations Saturation magnetization Microwave devices Magnetic separation Magnetic field measurement Nanoscale devices Educational institutions Stability spin-transfer Landau-Lifshitz equation phase-locking |
Content Type | Text |
Resource Type | Article |
Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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