Search Menu
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information
Search Scholarly Publications

Title: Exact intrinsic localized excitation of an anisotropic ferromagnetic spin chain in external magnetic field with Gilbert damping, spin current and PT -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 PT -symmetric magnetic nanostructure. We also briefly consider more general spin excitations.

Authors:
 [1]; ORCiD logo [2]
+ Show Author Affiliations
  1. Bharathidasan Univ., Tiruchirapalli (India). Centre for Nonlinear Dynamics
  2. 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.
Copy to clipboard
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
Copy to clipboard
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.
Copy to clipboard
@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}
}
Copy to clipboard
Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1016/j.physleta.2018.04.054
Copyright Statement
Other availability
Search WorldCat Search WorldCat to find libraries that may hold this journal
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

Figures / Tables:

Fig. 1. Fig. 1.: Damped spin excitation: one-spin excitation (Eqs. (24)–(26)) showing the three spin components for the damped cases (α = 0.005).
All figures and tables (4 total)
Save / Share:
Export Metadata
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.

Works referenced in this record:

The fascinating world of the Landau–Lifshitz–Gilbert equation: an overview
journal, March 2011

  • Lakshmanan, M.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 369, Issue 1939
  • DOI: 10.1098/rsta.2010.0319

Continuum spin system as an exactly solvable dynamical system
journal, April 1977

Gauge equivalence between one-dimensional Heisenberg ferromagnets with single-site anisotropy and nonlinear Schrodinger equations
journal, September 1982

Multi-Vortex Solutions of a Two-Dimensional Nonlinear Wave Equation
journal, July 1984

  • Ishimori, Yuji
  • Progress of Theoretical Physics, Vol. 72, Issue 1
  • DOI: 10.1143/PTP.72.33

Dynamic and static excitations of a classical discrete anisotropic Heisenberg ferromagnetic spin chain
journal, June 2008

Intrinsic localized modes of a classical discrete anisotropic Heisenberg ferromagnetic spin chain
journal, March 2014

Impact of the electrical connection of spin transfer nano-oscillators on their synchronization: an analytical study
journal, June 2008

  • Georges, B.; Grollier, J.; Cros, V.
  • Applied Physics Letters, Vol. 92, Issue 23
  • DOI: 10.1063/1.2945636

Synchronization of an array of spin torque nano oscillators in periodic applied external magnetic field
journal, April 2013

Gluing bifurcations in coupled spin torque nano-oscillators
journal, March 2013

  • Turtle, James; Beauvais, Katherine; Shaffer, Richard
  • Journal of Applied Physics, Vol. 113, Issue 11
  • DOI: 10.1063/1.4795266

Current-driven excitation of magnetic multilayers
journal, June 1996

    Sort by:
    [ × clear filter / sort ]

    Figures / Tables found in this record:

    Fig. 1. (p. 4)figure
    Fig. 2. (p. 4)figure
    Fig. 3. (p. 5)figure
    Fig. 4. (p. 6)figure
      [ × clear filter / sort ]
      Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

      Similar Records in DOE PAGES and OSTI.GOV collections: