Exact intrinsic localized excitation of an anisotropic ferromagnetic spin chain in external magnetic field with Gilbert damping, spin current and -symmetry
Abstract
In this work, we obtain the exact one-spin intrinsic localized excitation in an anisotropic Heisenberg ferromagnetic spin chain in a constant/variable external magnetic field with Gilbert damping included. We also point out how an appropriate magnitude spin current term in a spin transfer nano-oscillator (STNO) can stabilize the tendency towards damping. Further, we show how this excitation can be sustained in a recently suggested -symmetric magnetic nanostructure. We also briefly consider more general spin excitations.
- Authors:
-
- Bharathidasan Univ., Tiruchirapalli (India). Centre for Nonlinear Dynamics
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Laboratory Directed Research and Development (LDRD) Program; National Academy of Sciences India (NASI); Ministry of Science and Technology (India); Council of Scientific and Industrial Research (CSIR) (India); National Board for Higher Mathematics (NBHM) (India)
- OSTI Identifier:
- 1440439
- Alternate Identifier(s):
- OSTI ID: 1544437
- Report Number(s):
- LA-UR-17-28815
Journal ID: ISSN 0375-9601; TRN: US1900733
- Grant/Contract Number:
- AC52-06NA25396; 69/5/2016-17; SERB/F/6717/2017-18; 03/1331/15/EMR-II; 2/48(5)/2015/NBHM(R.P.)/R&D II/14127
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics Letters. A
- Additional Journal Information:
- Journal Volume: 382; Journal Issue: 28; Journal ID: ISSN 0375-9601
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; Mathematics
Citation Formats
Lakshmanan, Muthusamy, and Saxena, Avadh. Exact intrinsic localized excitation of an anisotropic ferromagnetic spin chain in external magnetic field with Gilbert damping, spin current and PT -symmetry. United States: N. p., 2018.
Web. doi:10.1016/j.physleta.2018.04.054.
Lakshmanan, Muthusamy, & Saxena, Avadh. Exact intrinsic localized excitation of an anisotropic ferromagnetic spin chain in external magnetic field with Gilbert damping, spin current and PT -symmetry. United States. https://doi.org/10.1016/j.physleta.2018.04.054
Lakshmanan, Muthusamy, and Saxena, Avadh. Fri .
"Exact intrinsic localized excitation of an anisotropic ferromagnetic spin chain in external magnetic field with Gilbert damping, spin current and PT -symmetry". United States. https://doi.org/10.1016/j.physleta.2018.04.054. https://www.osti.gov/servlets/purl/1440439.
@article{osti_1440439,
title = {Exact intrinsic localized excitation of an anisotropic ferromagnetic spin chain in external magnetic field with Gilbert damping, spin current and PT -symmetry},
author = {Lakshmanan, Muthusamy and Saxena, Avadh},
abstractNote = {In this work, we obtain the exact one-spin intrinsic localized excitation in an anisotropic Heisenberg ferromagnetic spin chain in a constant/variable external magnetic field with Gilbert damping included. We also point out how an appropriate magnitude spin current term in a spin transfer nano-oscillator (STNO) can stabilize the tendency towards damping. Further, we show how this excitation can be sustained in a recently suggested PT -symmetric magnetic nanostructure. We also briefly consider more general spin excitations.},
doi = {10.1016/j.physleta.2018.04.054},
journal = {Physics Letters. A},
number = 28,
volume = 382,
place = {United States},
year = {Fri Apr 27 00:00:00 EDT 2018},
month = {Fri Apr 27 00:00:00 EDT 2018}
}
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Cited by: 4 works
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Figures / Tables:
Fig. 1.: Damped spin excitation: one-spin excitation (Eqs. (24)–(26)) showing the three spin components for the damped cases (α = 0.005).
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Figures / Tables found in this record:
Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.