Spin-Orbit Induced Dynamics in Multilayer Nanostructures

Andrii Korostil; Mykola Krupa

doi:doi:10.11648/j.ajn.20160202.11

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Spin-Orbit Induced Dynamics in Multilayer Nanostructures

Andrii Korostil, Mykola Krupa

Published in American Journal of Nanosciences (Volume 2, Issue 2)

Received: 17 September 2016 Accepted: 17 October 2016 Published: 28 October 2016

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Abstract

Features of the current spin-orbit induced magnetic dynamics in multilayer nanostructures with nonmagnetic heavy metal layers possessing by a strong spin-orbit interaction are studied. These structures include ferromagnetic (F) (antiferromagnetic AF)/normal metal (N) nanostructures based on both conductive and insulating magneticsand heavy normal metals (e. g., FeCoB/Ta, YIG/Pt, Nio/Pt). The spin Hall effect of the conversion of an incoming charge current into a transverse (with respect to the charge current) spin current induces a spin-transfer torque and magnetic dynamics including a magnetic precession and switching. The magneto-dynamic effect of a spin current pumping generation together with the inverse spin Hall effect of conversion of the spin current into the incoming charge current provide the influence of the magnetic dynamics on the incoming charge current. These feedforward and feedback between the incoming charge current and the magnetic dynamics can be the basis for the spin-orbit driven self-sustained auto-oscillations of a magnetic order in the nanostructures. It is shown that the considered magnetic nanostructures possess by properties of controlled microwave radiation attaining tens THz in the antiferromagnetic case. Magnetic-induced changes of the electric resistance in the mentioned nanostructure are considered.

Published in	American Journal of Nanosciences (Volume 2, Issue 2)
DOI	10.11648/j.ajn.20160202.11
Page(s)	8-20
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2016. Published by Science Publishing Group

Keywords

Magnetic Nanostructures, Magnetic Dynamics, Spin Currents, Spin Hall Effects, Feedback, Nano-Oscillations

References

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APA Style

Andrii Korostil, Mykola Krupa. (2016). Spin-Orbit Induced Dynamics in Multilayer Nanostructures. American Journal of Nanosciences, 2(2), 8-20. https://doi.org/10.11648/j.ajn.20160202.11

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ACS Style

Andrii Korostil; Mykola Krupa. Spin-Orbit Induced Dynamics in Multilayer Nanostructures. Am. J. Nanosci. 2016, 2(2), 8-20. doi: 10.11648/j.ajn.20160202.11

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AMA Style

Andrii Korostil, Mykola Krupa. Spin-Orbit Induced Dynamics in Multilayer Nanostructures. Am J Nanosci. 2016;2(2):8-20. doi: 10.11648/j.ajn.20160202.11

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@article{10.11648/j.ajn.20160202.11,
  author = {Andrii Korostil and Mykola Krupa},
  title = {Spin-Orbit Induced Dynamics in Multilayer Nanostructures},
  journal = {American Journal of Nanosciences},
  volume = {2},
  number = {2},
  pages = {8-20},
  doi = {10.11648/j.ajn.20160202.11},
  url = {https://doi.org/10.11648/j.ajn.20160202.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajn.20160202.11},
  abstract = {Features of the current spin-orbit induced magnetic dynamics in multilayer nanostructures with nonmagnetic heavy metal layers possessing by a strong spin-orbit interaction are studied. These structures include ferromagnetic (F) (antiferromagnetic AF)/normal metal (N) nanostructures based on both conductive and insulating magneticsand heavy normal metals (e. g., FeCoB/Ta, YIG/Pt, Nio/Pt). The spin Hall effect of the conversion of an incoming charge current into a transverse (with respect to the charge current) spin current induces a spin-transfer torque and magnetic dynamics including a magnetic precession and switching. The magneto-dynamic effect of a spin current pumping generation together with the inverse spin Hall effect of conversion of the spin current into the incoming charge current provide the influence of the magnetic dynamics on the incoming charge current. These feedforward and feedback between the incoming charge current and the magnetic dynamics can be the basis for the spin-orbit driven self-sustained auto-oscillations of a magnetic order in the nanostructures. It is shown that the considered magnetic nanostructures possess by properties of controlled microwave radiation attaining tens THz in the antiferromagnetic case. Magnetic-induced changes of the electric resistance in the mentioned nanostructure are considered.},
 year = {2016}
}

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TY  - JOUR
T1  - Spin-Orbit Induced Dynamics in Multilayer Nanostructures
AU  - Andrii Korostil
AU  - Mykola Krupa
Y1  - 2016/10/28
PY  - 2016
N1  - https://doi.org/10.11648/j.ajn.20160202.11
DO  - 10.11648/j.ajn.20160202.11
T2  - American Journal of Nanosciences
JF  - American Journal of Nanosciences
JO  - American Journal of Nanosciences
SP  - 8
EP  - 20
PB  - Science Publishing Group
SN  - 2575-4858
UR  - https://doi.org/10.11648/j.ajn.20160202.11
AB  - Features of the current spin-orbit induced magnetic dynamics in multilayer nanostructures with nonmagnetic heavy metal layers possessing by a strong spin-orbit interaction are studied. These structures include ferromagnetic (F) (antiferromagnetic AF)/normal metal (N) nanostructures based on both conductive and insulating magneticsand heavy normal metals (e. g., FeCoB/Ta, YIG/Pt, Nio/Pt). The spin Hall effect of the conversion of an incoming charge current into a transverse (with respect to the charge current) spin current induces a spin-transfer torque and magnetic dynamics including a magnetic precession and switching. The magneto-dynamic effect of a spin current pumping generation together with the inverse spin Hall effect of conversion of the spin current into the incoming charge current provide the influence of the magnetic dynamics on the incoming charge current. These feedforward and feedback between the incoming charge current and the magnetic dynamics can be the basis for the spin-orbit driven self-sustained auto-oscillations of a magnetic order in the nanostructures. It is shown that the considered magnetic nanostructures possess by properties of controlled microwave radiation attaining tens THz in the antiferromagnetic case. Magnetic-induced changes of the electric resistance in the mentioned nanostructure are considered.
VL  - 2
IS  - 2
ER  -

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Author Information

Andrii Korostil

Institute of Magnetism of National Academy of Sciences of Ukraine, Kyiv, Ukraine
Mykola Krupa

Institute of Magnetism of National Academy of Sciences of Ukraine, Kyiv, Ukraine

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APA Style

Andrii Korostil, Mykola Krupa. (2016). Spin-Orbit Induced Dynamics in Multilayer Nanostructures. American Journal of Nanosciences, 2(2), 8-20. https://doi.org/10.11648/j.ajn.20160202.11

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ACS Style

Andrii Korostil; Mykola Krupa. Spin-Orbit Induced Dynamics in Multilayer Nanostructures. Am. J. Nanosci. 2016, 2(2), 8-20. doi: 10.11648/j.ajn.20160202.11

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AMA Style

Andrii Korostil, Mykola Krupa. Spin-Orbit Induced Dynamics in Multilayer Nanostructures. Am J Nanosci. 2016;2(2):8-20. doi: 10.11648/j.ajn.20160202.11

Copy | Download

@article{10.11648/j.ajn.20160202.11,
  author = {Andrii Korostil and Mykola Krupa},
  title = {Spin-Orbit Induced Dynamics in Multilayer Nanostructures},
  journal = {American Journal of Nanosciences},
  volume = {2},
  number = {2},
  pages = {8-20},
  doi = {10.11648/j.ajn.20160202.11},
  url = {https://doi.org/10.11648/j.ajn.20160202.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajn.20160202.11},
  abstract = {Features of the current spin-orbit induced magnetic dynamics in multilayer nanostructures with nonmagnetic heavy metal layers possessing by a strong spin-orbit interaction are studied. These structures include ferromagnetic (F) (antiferromagnetic AF)/normal metal (N) nanostructures based on both conductive and insulating magneticsand heavy normal metals (e. g., FeCoB/Ta, YIG/Pt, Nio/Pt). The spin Hall effect of the conversion of an incoming charge current into a transverse (with respect to the charge current) spin current induces a spin-transfer torque and magnetic dynamics including a magnetic precession and switching. The magneto-dynamic effect of a spin current pumping generation together with the inverse spin Hall effect of conversion of the spin current into the incoming charge current provide the influence of the magnetic dynamics on the incoming charge current. These feedforward and feedback between the incoming charge current and the magnetic dynamics can be the basis for the spin-orbit driven self-sustained auto-oscillations of a magnetic order in the nanostructures. It is shown that the considered magnetic nanostructures possess by properties of controlled microwave radiation attaining tens THz in the antiferromagnetic case. Magnetic-induced changes of the electric resistance in the mentioned nanostructure are considered.},
 year = {2016}
}

Copy | Download

TY  - JOUR
T1  - Spin-Orbit Induced Dynamics in Multilayer Nanostructures
AU  - Andrii Korostil
AU  - Mykola Krupa
Y1  - 2016/10/28
PY  - 2016
N1  - https://doi.org/10.11648/j.ajn.20160202.11
DO  - 10.11648/j.ajn.20160202.11
T2  - American Journal of Nanosciences
JF  - American Journal of Nanosciences
JO  - American Journal of Nanosciences
SP  - 8
EP  - 20
PB  - Science Publishing Group
SN  - 2575-4858
UR  - https://doi.org/10.11648/j.ajn.20160202.11
AB  - Features of the current spin-orbit induced magnetic dynamics in multilayer nanostructures with nonmagnetic heavy metal layers possessing by a strong spin-orbit interaction are studied. These structures include ferromagnetic (F) (antiferromagnetic AF)/normal metal (N) nanostructures based on both conductive and insulating magneticsand heavy normal metals (e. g., FeCoB/Ta, YIG/Pt, Nio/Pt). The spin Hall effect of the conversion of an incoming charge current into a transverse (with respect to the charge current) spin current induces a spin-transfer torque and magnetic dynamics including a magnetic precession and switching. The magneto-dynamic effect of a spin current pumping generation together with the inverse spin Hall effect of conversion of the spin current into the incoming charge current provide the influence of the magnetic dynamics on the incoming charge current. These feedforward and feedback between the incoming charge current and the magnetic dynamics can be the basis for the spin-orbit driven self-sustained auto-oscillations of a magnetic order in the nanostructures. It is shown that the considered magnetic nanostructures possess by properties of controlled microwave radiation attaining tens THz in the antiferromagnetic case. Magnetic-induced changes of the electric resistance in the mentioned nanostructure are considered.
VL  - 2
IS  - 2
ER  -

Copy | Download