Capacitance effect on the oscillation and switching characteristics of spin torque oscillators

We have studied the capacitance effect on the oscillation characteristics and the switching characteristics of the spin torque oscillators (STOs). We found that when the external field is applied, the STO oscillation frequency exhibits various dependences on the capacitance for injected current rang...

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Veröffentlicht in:Nanoscale research letters 2014-11, Vol.9 (1), p.597-597, Article 597
Hauptverfasser: Zeng, Tui, Zhou, Yan, Leung, Chi Wah, Lai, Peter PT, Pong, Philip WT
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Sprache:eng
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Zusammenfassung:We have studied the capacitance effect on the oscillation characteristics and the switching characteristics of the spin torque oscillators (STOs). We found that when the external field is applied, the STO oscillation frequency exhibits various dependences on the capacitance for injected current ranging from 8 to 20 mA. The switching characteristic is featured with the emerging of the canted region; the canted region increases with the capacitance. When the external field is absent, the STO free-layer switching time exhibits different dependences on the capacitance for different injected current. These results help to establish the foundation for capacitance-involved STO modeling.
ISSN:1931-7573
1556-276X
1556-276X
DOI:10.1186/1556-276X-9-597