Injection locking at 2f of spin torque oscillators under influence of thermal noise
| Autor: | Ursula Ebels, Jordan A. Katine, Marie-Claire Cyrille, M. Tortarolo, D. Mauri, C. Dieudonné, B. Lacoste, A. Zeltser, Liliana D. Buda-Prejbeanu, J. Hem |
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| Přispěvatelé: | Synchrotron SOLEIL (SSOLEIL), Centre National de la Recherche Scientifique (CNRS), SPINtronique et TEchnologie des Composants (SPINTEC), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche Interdisciplinaire de Grenoble (IRIG), Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Grenoble Alpes (UGA), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Western Digital, ANR-11-NANO-0016,SPINNOVA,Dispositifs SPINtroniques inNOVAnts : des excitations collectives vers les systèmes microondes miniaturisés(2011), European Project: 317950,EC:FP7:ICT,FP7-ICT-2011-8,MOSAIC(2013), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut de Recherche Interdisciplinaire de Grenoble (IRIG) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Science
FOS: Physical sciences Applied Physics (physics.app-ph) 01 natural sciences 7. Clean energy Noise (electronics) SPINTRONIC DEVICES Article SPIN TORQUE OSCILLATORS purl.org/becyt/ford/1 [https] Laser linewidth Control theory Tunnel junction 0103 physical sciences Phase noise Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Torque TUNNEL JUNCTIONS [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat] 010306 general physics PHASE NOISE Electronic circuit 010302 applied physics Physics Multidisciplinary Condensed Matter - Mesoscale and Nanoscale Physics Biasing purl.org/becyt/ford/1.3 [https] Physics - Applied Physics Injection locking Medicine |
| Zdroj: | Scientific Reports Scientific Reports, Nature Publishing Group, 2018, 8, pp.1728. ⟨10.1038/s41598-017-18969-5⟩ Scientific Reports, Vol 8, Iss 1, Pp 1-7 (2018) Scientific Reports, 2018, 8, pp.1728. ⟨10.1038/s41598-017-18969-5⟩ CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-017-18969-5⟩ |
| Popis: | Integration of Spin Torque Nano-Oscillators STNO's in conventional microwave circuits means that the devices have to meet certain specifications. One of the most important criteria is the phase noise, being the key parameter to evaluate the performance and define possible applications. Phase locking several oscillators together has been suggested as a possible means to decrease phase noise and consequently, the linewidth. In this work we present experiments, numerical simulations and an analytic model to describe the effects of thermal noise in the injection locking of a tunnel junction based STNO. The analytics show the relation of the intrinsic parameters of the STNO with the phase noise level, opening the path to tailor the spectral characteristics by the magnetic configuration. Experiments and simulations demonstrate that in the in-plane magnetized structure, while the frequency is locked, much higher reference currents are needed to reduce the noise by phase locking. Moreover, our analysis shows that it is possible to control the phase noise by the reference microwave current (IRF) and that it can be further reduced by increasing the bias current (IDC) of the oscillator, keeping the reference current in feasible limits for applications. Fil: Tortarolo, Marina del Carmen. Comisión Nacional de Energía Atómica. Gerencia del Área de Investigaciones y Aplicaciones no Nucleares. Gerencia de Física (Centro Atómico Constituyentes); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Lacoste, B.. International Iberian Nanotechnology Laboratory; Portugal. Universite Grenoble Alpes; Francia Fil: Hem, J.. Universite Grenoble Alpes; Francia Fil: Dieudonné, C.. Universite Grenoble Alpes; Francia Fil: Cyrille, M. C.. Universite Grenoble Alpes; Francia Fil: Katine, J.A.. Hitachi Global Storage Technologies; Estados Unidos Fil: Mauri, D.. Hitachi Global Storage Technologies; Estados Unidos Fil: Zeltser, A.. Hitachi Global Storage Technologies; Estados Unidos Fil: Buda Prejbeanu, L.D.. Universite Grenoble Alpes; Francia Fil: Ebels, U.. Universite Grenoble Alpes; Francia |
| Databáze: | OpenAIRE |
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