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Conference Paper: Capacitance effect on microwave power spectra of spin-torque oscillator with thermal noise

TitleCapacitance effect on microwave power spectra of spin-torque oscillator with thermal noise
Authors
Zhou, YShin, FGGuan, BÅkerman, J
KeywordsMacrospin model
Spin-torque oscillator
Thermal fluctuation
Issue Date2009
PublisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=20
Citation
Ieee Transactions On Magnetics, 2009, v. 45 n. 6, p. 2773-2776 How to Cite?
DOI: http://dx.doi.org/10.1109/TMAG.2009.2020556
AbstractA macro-spin simulation has been carried out to study the thermal stability of a spin-torque oscillator (STO) connected in parallel with a capacitance. To study the impact of realistic thermal fluctuation on an STO, a stochastic magnetic field vector is added into the Landau-Lifshitz-Gilbert-Slonczewski (LLGS) equation. From the numerical solution, it is found that the addition of capacitance positively influences the thermal stability of the system, and can improve the quality factor of the microwave power spectrum even in the presence of thermal fluctuation. The results of I-V phase shift under different conditions suggest that there may exist an optimum capacitance for which the thermal stability of the system can be most enhanced. © 2009 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/160472
ISSN
0018-9464
2021 Impact Factor: 1.848
2020 SCImago Journal Rankings: 0.620
ISI Accession Number ID
WOS:000266329800114
References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorZhou, Yen_HK
dc.contributor.authorShin, FGen_HK
dc.contributor.authorGuan, Ben_HK
dc.contributor.authorÅkerman, Jen_HK
dc.date.accessioned2012-08-16T06:11:59Z-
dc.date.available2012-08-16T06:11:59Z-
dc.date.issued2009en_HK
dc.identifier.citationIeee Transactions On Magnetics, 2009, v. 45 n. 6, p. 2773-2776en_US
dc.identifier.issn0018-9464en_HK
dc.identifier.urihttp://hdl.handle.net/10722/160472-
dc.description.abstractA macro-spin simulation has been carried out to study the thermal stability of a spin-torque oscillator (STO) connected in parallel with a capacitance. To study the impact of realistic thermal fluctuation on an STO, a stochastic magnetic field vector is added into the Landau-Lifshitz-Gilbert-Slonczewski (LLGS) equation. From the numerical solution, it is found that the addition of capacitance positively influences the thermal stability of the system, and can improve the quality factor of the microwave power spectrum even in the presence of thermal fluctuation. The results of I-V phase shift under different conditions suggest that there may exist an optimum capacitance for which the thermal stability of the system can be most enhanced. © 2009 IEEE.en_HK
dc.languageengen_US
dc.publisherI E E E. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=20en_HK
dc.relation.ispartofIEEE Transactions on Magneticsen_HK
dc.subjectMacrospin modelen_HK
dc.subjectSpin-torque oscillatoren_HK
dc.subjectThermal fluctuationen_HK
dc.titleCapacitance effect on microwave power spectra of spin-torque oscillator with thermal noiseen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailZhou, Y: yanzhou@hku.hken_HK
dc.identifier.authorityZhou, Y=rp01541en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/TMAG.2009.2020556en_HK
dc.identifier.scopuseid_2-s2.0-66549096972en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-66549096972&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume45en_HK
dc.identifier.issue6en_HK
dc.identifier.spage2773en_HK
dc.identifier.epage2776en_HK
dc.identifier.isiWOS:000266329800114-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridZhou, Y=51360911500en_HK
dc.identifier.scopusauthoridShin, FG=7004422123en_HK
dc.identifier.scopusauthoridGuan, B=26641835400en_HK
dc.identifier.scopusauthoridÅkerman, J=7003585708en_HK
dc.identifier.issnl0018-9464-

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