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Article: Multiple synchronization attractors of serially connected spin-torque nanooscillators
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TitleMultiple synchronization attractors of serially connected spin-torque nanooscillators
 
AuthorsLi, D3
Zhou, Y2
Hu, B1
Åkerman, J4
Zhou, C3
 
Issue Date2012
 
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
 
CitationPhysical Review B - Condensed Matter And Materials Physics, 2012, v. 86 n. 1, article no. 014418 [How to Cite?]
DOI: http://dx.doi.org/10.1103/PhysRevB.86.014418
 
AbstractSpin-torque nanooscillators (STNOs), which have both the common properties of nanosized oscillators (small size, tunable operating frequency) and some particular ones (wide operating range, easy on-chip integration, etc.), have received a great deal of attention due to their high potential in applications. Yet synchronization of serially connected STNOs has been considered essential for applications. In this paper, we present findings concerning the following properties of synchronized serially connected STNOs: (i) multiple synchronization attractors coexist, and the attracting basins are entangled in a complicated manner; (ii) these attractors have different synchronized frequencies and output powers; and (iii) switching among these attractors can be induced by a small noise, which causes a resonance peak in the power spectra to vanish. These characteristics can be understood using saddle-node bifurcations and have direct impact on laboratory experiments and the potential applications of STNO-based devices. © 2012 American Physical Society.
 
ISSN1098-0121
2013 Impact Factor: 3.664
2013 SCImago Journal Rankings: 2.143
 
DOIhttp://dx.doi.org/10.1103/PhysRevB.86.014418
 
ReferencesReferences in Scopus
 
DC FieldValue
dc.contributor.authorLi, D
 
dc.contributor.authorZhou, Y
 
dc.contributor.authorHu, B
 
dc.contributor.authorÅkerman, J
 
dc.contributor.authorZhou, C
 
dc.date.accessioned2012-08-16T05:56:45Z
 
dc.date.available2012-08-16T05:56:45Z
 
dc.date.issued2012
 
dc.description.abstractSpin-torque nanooscillators (STNOs), which have both the common properties of nanosized oscillators (small size, tunable operating frequency) and some particular ones (wide operating range, easy on-chip integration, etc.), have received a great deal of attention due to their high potential in applications. Yet synchronization of serially connected STNOs has been considered essential for applications. In this paper, we present findings concerning the following properties of synchronized serially connected STNOs: (i) multiple synchronization attractors coexist, and the attracting basins are entangled in a complicated manner; (ii) these attractors have different synchronized frequencies and output powers; and (iii) switching among these attractors can be induced by a small noise, which causes a resonance peak in the power spectra to vanish. These characteristics can be understood using saddle-node bifurcations and have direct impact on laboratory experiments and the potential applications of STNO-based devices. © 2012 American Physical Society.
 
dc.description.naturepublished_or_final_version
 
dc.identifier.citationPhysical Review B - Condensed Matter And Materials Physics, 2012, v. 86 n. 1, article no. 014418 [How to Cite?]
DOI: http://dx.doi.org/10.1103/PhysRevB.86.014418
 
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevB.86.014418
 
dc.identifier.hkuros202148
 
dc.identifier.hkuros211027
 
dc.identifier.issn1098-0121
2013 Impact Factor: 3.664
2013 SCImago Journal Rankings: 2.143
 
dc.identifier.issue1, article no. 014418
 
dc.identifier.scopuseid_2-s2.0-84864491944
 
dc.identifier.urihttp://hdl.handle.net/10722/159802
 
dc.identifier.volume86
 
dc.languageeng
 
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
 
dc.publisher.placeUnited States
 
dc.relation.ispartofPhysical Review B - Condensed Matter and Materials Physics
 
dc.relation.referencesReferences in Scopus
 
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License
 
dc.titleMultiple synchronization attractors of serially connected spin-torque nanooscillators
 
dc.typeArticle
 
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Author Affiliations
  1. University of Houston
  2. The University of Hong Kong
  3. Hong Kong Baptist University
  4. Göteborgs Universitet