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

Tui Zeng; Yan Zhou; Chi Wah Leung; Peter P.T. Lai; Philip W.T. Pong

doi:10.1186/1556-276X-9-597

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

Tui Zeng, Yan Zhou, Chi Wah Leung, Peter P.T. Lai, Philip W.T. Pong

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

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.

Original language	English (US)
Article number	597
Journal	Nanoscale Research Letters
Volume	9
Issue number	1
DOIs	https://doi.org/10.1186/1556-276X-9-597
State	Published - 2014
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics

Keywords

Canted region
Capacitance effect
Oscillation frequency
Switching time

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title = "Capacitance effect on the oscillation and switching characteristics of spin torque oscillators",

abstract = "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.",

keywords = "Canted region, Capacitance effect, Oscillation frequency, Switching time",

author = "Tui Zeng and Yan Zhou and Leung, {Chi Wah} and Lai, {Peter P.T.} and Pong, {Philip W.T.}",

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T1 - Capacitance effect on the oscillation and switching characteristics of spin torque oscillators

AU - Zeng, Tui

AU - Zhou, Yan

AU - Leung, Chi Wah

AU - Lai, Peter P.T.

AU - Pong, Philip W.T.

PY - 2014

Y1 - 2014

N2 - 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.

AB - 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.

KW - Canted region

KW - Capacitance effect

KW - Oscillation frequency

KW - Switching time

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JO - Nanoscale Research Letters

JF - Nanoscale Research Letters

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

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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