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Title: Localization of magnon modes in a curved magnetic nanowire

Abstract

Spin waves in magnetic nanowires can be bound by a local bending of the wire. The eigenfrequency of a truly local magnon mode is determined by the curvature: a general analytical expression is established for any infinitesimally weak localized curvature of the wire. In conclusion, the interaction of the local mode with spin waves, propagating through the bend, results in scattering features, which is well confirmed by spin-lattice simulations.

Authors:
 [1];  [2];  [3];  [4]; ORCiD logo [5];  [4];  [6]
  1. Bogolyubov Institute for Theoretical Physics, Kyiv (Ukraine)
  2. Bogolyubov Institute for Theoretical Physics, Kyiv (Ukraine); IFW Dresden, Dresden (Germany)
  3. Univ. of Bayreuth, Bayreuth (Germany)
  4. Taras Shevchenko National Univ. of Kyiv, Kyiv (Ukraine)
  5. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  6. Helmholtz-Zentrum Dresden-Rossendorf e. V., Dresden (Germany)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1481975
Report Number(s):
LA-UR-18-20270
Journal ID: ISSN 1063-777X
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Low Temperature Physics
Additional Journal Information:
Journal Volume: 44; Journal Issue: 7; Journal ID: ISSN 1063-777X
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; Material Science

Citation Formats

Gaididei, Yuri, Kravchuk, Volodymyr P., Mertens, Franz G., Pylypovskyi, Oleksandr V., Saxena, Avadh, Sheka, Denis D., and Volkov, Oleksii M. Localization of magnon modes in a curved magnetic nanowire. United States: N. p., 2018. Web. doi:10.1063/1.5041428.
Gaididei, Yuri, Kravchuk, Volodymyr P., Mertens, Franz G., Pylypovskyi, Oleksandr V., Saxena, Avadh, Sheka, Denis D., & Volkov, Oleksii M. Localization of magnon modes in a curved magnetic nanowire. United States. doi:https://doi.org/10.1063/1.5041428
Gaididei, Yuri, Kravchuk, Volodymyr P., Mertens, Franz G., Pylypovskyi, Oleksandr V., Saxena, Avadh, Sheka, Denis D., and Volkov, Oleksii M. Fri . "Localization of magnon modes in a curved magnetic nanowire". United States. doi:https://doi.org/10.1063/1.5041428. https://www.osti.gov/servlets/purl/1481975.
@article{osti_1481975,
title = {Localization of magnon modes in a curved magnetic nanowire},
author = {Gaididei, Yuri and Kravchuk, Volodymyr P. and Mertens, Franz G. and Pylypovskyi, Oleksandr V. and Saxena, Avadh and Sheka, Denis D. and Volkov, Oleksii M.},
abstractNote = {Spin waves in magnetic nanowires can be bound by a local bending of the wire. The eigenfrequency of a truly local magnon mode is determined by the curvature: a general analytical expression is established for any infinitesimally weak localized curvature of the wire. In conclusion, the interaction of the local mode with spin waves, propagating through the bend, results in scattering features, which is well confirmed by spin-lattice simulations.},
doi = {10.1063/1.5041428},
journal = {Low Temperature Physics},
number = 7,
volume = 44,
place = {United States},
year = {2018},
month = {7}
}

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