My Research and Inventions

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Dr. Vadym Zayets

Spintronics Research Center, National Institute of Advanced Industrial Science and Technology (AIST), Central 2, Room C314b,
Umezono 1-1-1, Tsukuba,
Ibaraki-ken 305-8568, Japan.


tel: +81-298-61-5426
fax: +81-298-61-3432

v.zayets (at symbol)
v.zayets (at symbol)



Site Updates


  • 2013 April

Proposed theory of TIS/TIA assemblies is here


  • 2013 Feb

Measurements data on plasmonic waveguides is here


  • 2012 September 11

I have add a page, which describes Influence of the Coulomb electron-electron interaction on spin and charge transport

I have added tables, which compare drift and diffusion currents in different materials and some descussion about basic properties of drift and diffusion currents.
  • 2012 July 30

  • 2012 July 24

The reasons for absence of diffusion spin current in semimetals is explained here
  • 2012 July 20

11 pages were added, which describe optical mode propagation in dielectric waveguide (Si wire waveguide and AlGaAs rib waveguides) and plasmons propagation in single-surface double-dielectric plasmonic waveguides.

Mainly I would like to understand properties near cutoff for plasmonic waveguides.

For dielectric waveguide, mode behavior near cutoff is very clear. To see the weakening and disappearing of optical confinement near cutoff when width of waveguide core is decreasing

and when width of waveguide core is decreasing

The cutoff conditions for plasmons is more less understood, but some additional study is required.

  • 2012 July 15

Numerical example, which demonstrates similarities between spin/charge transport in iron and silicon is here
  • 2012 July 04

Nano/micro fabrication technology of the spin-photon memory is here






















I truly appreciate your comments, feedbacks and questions

I will try to answer your questions as soon as possible


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