Global Patent Index - EP 3394980 A4

EP 3394980 A4 20190731 - SYNCHRONIZATION OF MULTIPLE NANO-CONTACT SPIN TORQUE OSCILLATORS

Title (en)

SYNCHRONIZATION OF MULTIPLE NANO-CONTACT SPIN TORQUE OSCILLATORS

Title (de)

SYNCHRONISATION MEHRERER NANOKONTAKT-SPIN-TORQUE-OSZILLATOREN

Title (fr)

SYNCHRONISATION DE PLUSIEURS OSCILLATEURS À TRANSFERT DE SPIN À NANOCONTACT

Publication

EP 3394980 A4 20190731 (EN)

Application

EP 16879484 A 20161220

Priority

  • SE 1551694 A 20151221
  • SE 2016051290 W 20161220

Abstract (en)

[origin: WO2017111688A1] A spin oscillator device (NCI) comprising a first spin torque oscillator, STO (2), having an extended multilayered magnetic thin-film stack (2), wherein a nano-contact, NC, (6) is provided on said magnetic film stack (2) providing an NC-STO (2, 6) comprising a magnetic free-layer (3) and having a nanoscopic region, wherein the NC (6) is configured to focus electric current (Ide) to the nanoscopic region, configured to generate the necessary current densities needed to excite propagating spin waves (SWs) in the magnetic free layer (3), wherein a circumferential magnetic field (HOe) surrounds the NC (6), wherein an externally applied field (Hext) is configured to control the control the propagation of the spin waves (SWs) forming a spin wave beam (SW beam) to a second spin oscillator device (NCn), which is arranged in spin wave communication and synchronized to the first NCI.

IPC 8 full level

B82Y 25/00 (2011.01); H01F 10/32 (2006.01); H01L 29/82 (2006.01); H01L 43/00 (2006.01); H03B 15/00 (2006.01); H10N 50/00 (2023.01); H10N 50/10 (2023.01)

CPC (source: EP SE)

B82Y 25/00 (2013.01 - SE); H01F 10/32 (2013.01 - EP SE); H01L 29/82 (2013.01 - SE); H03B 15/006 (2013.01 - EP SE); H10N 50/00 (2023.02 - SE); B82Y 25/00 (2013.01 - EP); H10N 50/10 (2023.02 - EP)

Citation (search report)

  • [Y] US 2012075752 A1 20120329 - SATO RIE [JP], et al
  • [Y] US 7678475 B2 20100316 - SLAVIN ANDREI N [US], et al
  • [Y] US 2010308923 A1 20101209 - KAKA SHEHZAAD [US]
  • [Y] HOUSHANG A ET AL: "Effect of Excitation Fatigue on the Synchronization of Multiple Nanocontact Spin-Torque Oscillators", IEEE MAGNETICS LETTERS, vol. 5, 13 November 2014 (2014-11-13), pages 1 - 4, XP011564348, ISSN: 1949-307X, [retrieved on 20141113], DOI: 10.1109/LMAG.2014.2364157
  • [Y] HOEFER M A ET AL: "Model for a collimated spin wave beam generated by a single layer, spin torque nanocontact", ARXIV.ORG, CORNELL UNIVERSITY LIBRARY, 201 OLIN LIBRARY CORNELL UNIVERSITY ITHACA, NY 14853, 15 October 2007 (2007-10-15), XP080306608, DOI: 10.1103/PHYSREVB.77.144401
  • [Y] SUBASH B ET AL: "Enhanced synchronization in an array of spin torque nano-oscillators in the presence of oscillating external magnetic field", EUROPHYSICS LETTERS: A LETTERS JOURNAL EXPLORING THE FRONTIERS OF PHYSICS, INSTITUTE OF PHYSICS PUBLISHING, BRISTOL, FR, vol. 109, no. 1, 21 January 2015 (2015-01-21), pages 17009, XP020276173, ISSN: 0295-5075, [retrieved on 20150121], DOI: 10.1209/0295-5075/109/17009
  • See references of WO 2017111688A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2017111688 A1 20170629; EP 3394980 A1 20181031; EP 3394980 A4 20190731; SE 1551694 A1 20170622; SE 540517 C2 20180925

DOCDB simple family (application)

SE 2016051290 W 20161220; EP 16879484 A 20161220; SE 1551694 A 20151221