Single-magnon tunneling through a ferromagnetic nanochain

Автор(и)

  • E.G. Petrov N.N. Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine 14-b Metrologichna Str., Kiev 03680, Ukraine
  • V. Ostrovsky Department of Physics, Polytechnic Institute of NYU, Brooklyn, New York 11201, USA

DOI:

https://doi.org/10.1063/1.3499236

Ключові слова:

magnon, nanochain, transmission, tunneling.

Анотація

Magnon transmission between ferromagnetic contacts coupled by a linear ferromagnetic chain is studied at the condition when the chain exhibits itself as a tunnel magnon transmitter. It is shown that dependently on magnon energy at the chain, a distant intercontact magnon transmission occurs either in resonant or off-resonant tunneling regime. In the first case, a transmission function depends weakly on the number of chain sites whereas at off-resonant regime the same function manifests an exponential drop with the chain length. Change of direction of external magnetic field in one of ferromagnetic contacts blocks a tunnel transmission of magnon.

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Опубліковано

2010-08-04

Як цитувати

(1)
Petrov, E.; Ostrovsky, V. Single-Magnon Tunneling through a Ferromagnetic Nanochain. Fiz. Nizk. Temp. 2010, 36, 958-966.

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