To the top

Page Manager: Webmaster
Last update: 9/11/2012 3:13 PM

Tell a friend about this page
Print version

Multiple synchronization … - University of Gothenburg, Sweden Till startsida
Sitemap
To content Read more about how we use cookies on gu.se

Multiple synchronization attractors of serially connected spin-torque nanooscillators

Journal article
Authors D. Li
Y. Zhou
B. B. Hu
Johan Åkerman
C. S. Zhou
Published in Physical Review B
Volume 86
Issue 1
ISSN 1098-0121
Publication year 2012
Published at Department of Physics (GU)
Language en
Links dx.doi.org/10.1103/PhysRevB.86.0144...
Keywords phase synchronization, nano-oscillators, locking, driven, systems, devices
Subject categories Physical Sciences

Abstract

Spin-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.

Page Manager: Webmaster|Last update: 9/11/2012
Share:

The University of Gothenburg uses cookies to provide you with the best possible user experience. By continuing on this website, you approve of our use of cookies.  What are cookies?