The phase accumulation and antenna near field of microscopic propagating spin wave devices

Crosby Chang; Mikhail Kostylev; Eugene Ivanov; J. Ding; A.O. Adeyeye

doi:10.1063/1.4863078

The phase accumulation and antenna near field of microscopic propagating spin wave devices

Crosby Chang, Mikhail Kostylev, Eugene Ivanov, J. Ding, A.O. Adeyeye

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Abstract

We studied phase accumulation by the highly non-reciprocal magnetostatic surface spin waves in thin Permalloy microstripes excited and received by microscopic coplanar antennae. We find that the experimentally measured characteristic length of the near field of the antenna is smaller than the total width of the coplanar. This is confirmed by our numerical simulations. Consequently, the distance over which the spin wave accumulates its phase while travelling between the input and output antennae coincides with the distance between the antennae symmetry axes with good accuracy. © 2014 AIP Publishing LLC.

Original language	English
Article number	032408
Number of pages	4
Journal	Applied Physics Letters
Volume	104
Issue number	3
DOIs	https://doi.org/10.1063/1.4863078
Publication status	Published - 20 Jan 2014

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Copyright (2014) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Appl. Phys. Lett. 104, 032408 (2014); and may be found at http://dx.doi.org/10.1063/1.4863078.
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title = "The phase accumulation and antenna near field of microscopic propagating spin wave devices",

abstract = "We studied phase accumulation by the highly non-reciprocal magnetostatic surface spin waves in thin Permalloy microstripes excited and received by microscopic coplanar antennae. We find that the experimentally measured characteristic length of the near field of the antenna is smaller than the total width of the coplanar. This is confirmed by our numerical simulations. Consequently, the distance over which the spin wave accumulates its phase while travelling between the input and output antennae coincides with the distance between the antennae symmetry axes with good accuracy. {\textcopyright} 2014 AIP Publishing LLC.",

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AU - Chang, Crosby

AU - Kostylev, Mikhail

AU - Ivanov, Eugene

AU - Ding, J.

AU - Adeyeye, A.O.

PY - 2014/1/20

Y1 - 2014/1/20

N2 - We studied phase accumulation by the highly non-reciprocal magnetostatic surface spin waves in thin Permalloy microstripes excited and received by microscopic coplanar antennae. We find that the experimentally measured characteristic length of the near field of the antenna is smaller than the total width of the coplanar. This is confirmed by our numerical simulations. Consequently, the distance over which the spin wave accumulates its phase while travelling between the input and output antennae coincides with the distance between the antennae symmetry axes with good accuracy. © 2014 AIP Publishing LLC.

AB - We studied phase accumulation by the highly non-reciprocal magnetostatic surface spin waves in thin Permalloy microstripes excited and received by microscopic coplanar antennae. We find that the experimentally measured characteristic length of the near field of the antenna is smaller than the total width of the coplanar. This is confirmed by our numerical simulations. Consequently, the distance over which the spin wave accumulates its phase while travelling between the input and output antennae coincides with the distance between the antennae symmetry axes with good accuracy. © 2014 AIP Publishing LLC.

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The phase accumulation and antenna near field of microscopic propagating spin wave devices

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