Title:
SPIN OSCILLATION DEVICE AND MANUFACTURING METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2013/065751
Kind Code:
A1
Abstract:
Provided is a spin oscillation device which adds noise common to a plurality of spin oscillation elements in order to synchronize phases. The present invention is provided with: a spin oscillation element group (12) comprising a plurality of spin oscillation elements (11) wherein a spacer comprising non-magnetic material is sandwiched between 2 ferromagnetic layers comprising ferromagnetic material, and by way of current supplied to the spacer and the ferromagnetic layers, spin torque is exerted in order to generate magnetization by self-oscillation; and noise addition means (13) for adding noise which is common to the plurality of spin oscillation elements (11) and which is of a higher frequency than the oscillation frequency of the spin oscillation elements (11). Furthermore, the trajectory of precession of the magnetization of the spin oscillation elements (11) is controlled by way of physical properties, current and a magnetic field so as to have inflection points such that a small curvature is achieved.
Inventors:
NAKADA KAZUKI (JP)
YAKATA SATOSHI (JP)
KIMURA TAKASHI (JP)
YAKATA SATOSHI (JP)
KIMURA TAKASHI (JP)
Application Number:
PCT/JP2012/078199
Publication Date:
May 10, 2013
Filing Date:
October 31, 2012
Export Citation:
Assignee:
UNIV KYUSHU NAT UNIV CORP (JP)
International Classes:
H03B15/00; H01L29/82; H01L43/08
Domestic Patent References:
| WO2009054182A1 | 2009-04-30 |
Foreign References:
| JP2008053915A | 2008-03-06 | |||
| JP2009135471A | 2009-06-18 | |||
| JP2009194070A | 2009-08-27 |
Other References:
YUYA NAKAO: "Phase Reduction Theory of Nonlinear Oscillators and its Applications", SYSTEM SEIGYO JOHO GAKKAISHI SYSTEM/SEIGYO/JOHO, vol. 53, no. 8, 15 August 2009 (2009-08-15), pages 12 - 18
KAZUYUKI YOSHIMURA: "Phase Reduction of Limit Cycle Oscillators Driven by Noise", IEICE TECHNICAL REPORT, vol. 110, no. 83, 11 June 2010 (2010-06-11), pages 141 - 145
KAZUYUKI YOSHIMURA: "Phase Reduction of Limit Cycle Oscillators Driven by Noise", IEICE TECHNICAL REPORT, vol. 110, no. 83, 11 June 2010 (2010-06-11), pages 141 - 145
Attorney, Agent or Firm:
HIRAI YASUO (JP)
Yasuo Hirai (JP)
Yasuo Hirai (JP)
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