Title:
SPIN WAVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/089692
Kind Code:
A1
Abstract:
Disclosed is a spin wave device which can be integrated in an LSI chip and has high design freedom for frequency characteristics. The spin wave device is provided with one input interconnect for transmitting input impulse signals, a multilayer film including an underlayer, a first magnetic layer which is provided on the multilayer film and receives the input impulse signals to thereby create spin waves and propagate the spin waves, a plurality of input electrodes which are disposed in a line on the first magnetic layer, connected to the input interconnect, and transmit the input impulse signals to the first magnetic layer, and a plurality of detection electrodes which detect the spin waves propagated in the first magnetic layer and are each provided on the first magnetic layer so that the distance from the line in which the plurality of input electrodes are disposed is different for each. If the number of detection electrodes is n (where n≥2), the distance of the i-th (where n≥i≥1) detection electrode from the line is Li, the group velocity of the spin waves is Vg, and the pulse period of the input impulse signals is t0, the distance d between an adjacent i-th (where n-1≥i≥1) detection electrode and an i+1-th detection electrode at a direction perpendicular to the line is expressed as d=Vg×t0.
Inventors:
KONDO TSUYOSHI (JP)
MORISE HIROFUMI (JP)
NAKAMURA SHIHO (JP)
MORISE HIROFUMI (JP)
NAKAMURA SHIHO (JP)
Application Number:
PCT/JP2010/050624
Publication Date:
July 28, 2011
Filing Date:
January 20, 2010
Export Citation:
Assignee:
TOSHIBA KK (JP)
KONDO TSUYOSHI (JP)
MORISE HIROFUMI (JP)
NAKAMURA SHIHO (JP)
KONDO TSUYOSHI (JP)
MORISE HIROFUMI (JP)
NAKAMURA SHIHO (JP)
International Classes:
H03B15/00; H01L29/82; H01L43/08; H03H2/00
Foreign References:
| JP2007124340A | 2007-05-17 | |||
| JP2005176318A | 2005-06-30 |
Other References:
Y.J.ATAIIYAN ET AL.: "MSSW TRANSVERSAL FILTERS BASED ON CURRENT WEIGHTING IN NARROW (10pm) TRANSDUCERS", IEEE MTT-S DIGEST, 1986, pages 575 - 578
SANG-KOOG KIM ET AL.: "A gigahertz-range spin-wave filter composed of width-modulated nanostrip magnonic-crystal waveguides", APPLIED PHYSICS LETTERS, vol. 95, no. 8, 24 August 2009 (2009-08-24), pages 082507
SANG-KOOG KIM ET AL.: "A gigahertz-range spin-wave filter composed of width-modulated nanostrip magnonic-crystal waveguides", APPLIED PHYSICS LETTERS, vol. 95, no. 8, 24 August 2009 (2009-08-24), pages 082507
Attorney, Agent or Firm:
KATSUNUMA Hirohito et al. (JP)
Katsunuma Hirohito (JP)
Katsunuma Hirohito (JP)
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Claims: