Modulation of single and double spin torque oscillators
2010 (English)In: INTERNATIONAL CONFERENCE ON MAGNETIC MATERIALS (ICMM-2010), 2010, 318-321 p.Conference paper (Refereed)
We discuss modulation of metallic spin torque oscillators (STOs) based on single and double nano-contacts. The modulation behavior of both types of devices is characterized by equally spaced multiple sidebands, which can be ascribed mostly to a frequency modulation phenomenon. However, quantitative examination reveals that amplitude modulation is also present in both types of devices. We also show the feasibility of modulating the synchronized state of a double nano-contact STO. The synchronized state can be treated as a single oscillator, which is a very promising feature for future applications of STO arrays.
Place, publisher, year, edition, pages
2010. 318-321 p.
, AIP Conference Proceedings, ISSN 0094-243X ; 1347
spin torque oscillators, modulation, non-linear frequency and amplitude modulation, synchronization of spin torque oscillators
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:kth:diva-101052DOI: 10.1063/1.3601845ISI: 000302919900072ScopusID: 2-s2.0-79961047026ISBN: 978-0-7354-0903-3OAI: oai:DiVA.org:kth-101052DiVA: diva2:546339
International Conference on Magnetic Materials (ICMM), OCT 25-29, 2010, Kolkata, INDIA
QC 201208232012-08-232012-08-222012-08-23Bibliographically approved