Calculation of the coherent transport properties of a symmetric spin nanocontact

B. Bourahla, A. Khater, R. Tigrine

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A theoretical study is presented for the coherent transport properties of a magnetic nanocontact. In particular, we study a symmetric nanocontact between two identical waveguides composed of semi-infinite spin ordered ferromagnetic chains. The coherent transmission and reflection scattering cross sections via the nanocontact, for spin waves incident from the bulk waveguide, are calculated with the use of the matching method. The inter-atomic magnetic exchange on the nanocontact is allowed to vary to investigate the consequences of magnetic softening and hardening for the calculated spectra. Transmission spectra underline the filtering properties of the nanocontact. The localized spin density of states in the nanocontact domain is also calculated, and analyzed. The results yield an understanding of the relationship between coherent conductance and the structural configuration of the nanocontact.

Original languageEnglish
Pages (from-to)6857-6861
Number of pages5
JournalThin Solid Films
Volume517
Issue number24
DOIs
Publication statusPublished - 30 Oct 2009
Externally publishedYes

Fingerprint

Transport properties
Waveguides
transport properties
waveguides
Spin waves
coherent radiation
hardening
scattering cross sections
softening
magnons
Hardening
Scattering
configurations

Keywords

  • Conductance
  • Fano resonances
  • Magnetic properties
  • Magnon

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Calculation of the coherent transport properties of a symmetric spin nanocontact. / Bourahla, B.; Khater, A.; Tigrine, R.

In: Thin Solid Films, Vol. 517, No. 24, 30.10.2009, p. 6857-6861.

Research output: Contribution to journalArticle

Bourahla, B. ; Khater, A. ; Tigrine, R. / Calculation of the coherent transport properties of a symmetric spin nanocontact. In: Thin Solid Films. 2009 ; Vol. 517, No. 24. pp. 6857-6861.
@article{a6b6c751489f4052b9a68207daa7926e,
title = "Calculation of the coherent transport properties of a symmetric spin nanocontact",
abstract = "A theoretical study is presented for the coherent transport properties of a magnetic nanocontact. In particular, we study a symmetric nanocontact between two identical waveguides composed of semi-infinite spin ordered ferromagnetic chains. The coherent transmission and reflection scattering cross sections via the nanocontact, for spin waves incident from the bulk waveguide, are calculated with the use of the matching method. The inter-atomic magnetic exchange on the nanocontact is allowed to vary to investigate the consequences of magnetic softening and hardening for the calculated spectra. Transmission spectra underline the filtering properties of the nanocontact. The localized spin density of states in the nanocontact domain is also calculated, and analyzed. The results yield an understanding of the relationship between coherent conductance and the structural configuration of the nanocontact.",
keywords = "Conductance, Fano resonances, Magnetic properties, Magnon",
author = "B. Bourahla and A. Khater and R. Tigrine",
year = "2009",
month = "10",
day = "30",
doi = "10.1016/j.tsf.2009.05.060",
language = "English",
volume = "517",
pages = "6857--6861",
journal = "Thin Solid Films",
issn = "0040-6090",
publisher = "Elsevier",
number = "24",

}

TY - JOUR

T1 - Calculation of the coherent transport properties of a symmetric spin nanocontact

AU - Bourahla, B.

AU - Khater, A.

AU - Tigrine, R.

PY - 2009/10/30

Y1 - 2009/10/30

N2 - A theoretical study is presented for the coherent transport properties of a magnetic nanocontact. In particular, we study a symmetric nanocontact between two identical waveguides composed of semi-infinite spin ordered ferromagnetic chains. The coherent transmission and reflection scattering cross sections via the nanocontact, for spin waves incident from the bulk waveguide, are calculated with the use of the matching method. The inter-atomic magnetic exchange on the nanocontact is allowed to vary to investigate the consequences of magnetic softening and hardening for the calculated spectra. Transmission spectra underline the filtering properties of the nanocontact. The localized spin density of states in the nanocontact domain is also calculated, and analyzed. The results yield an understanding of the relationship between coherent conductance and the structural configuration of the nanocontact.

AB - A theoretical study is presented for the coherent transport properties of a magnetic nanocontact. In particular, we study a symmetric nanocontact between two identical waveguides composed of semi-infinite spin ordered ferromagnetic chains. The coherent transmission and reflection scattering cross sections via the nanocontact, for spin waves incident from the bulk waveguide, are calculated with the use of the matching method. The inter-atomic magnetic exchange on the nanocontact is allowed to vary to investigate the consequences of magnetic softening and hardening for the calculated spectra. Transmission spectra underline the filtering properties of the nanocontact. The localized spin density of states in the nanocontact domain is also calculated, and analyzed. The results yield an understanding of the relationship between coherent conductance and the structural configuration of the nanocontact.

KW - Conductance

KW - Fano resonances

KW - Magnetic properties

KW - Magnon

UR - http://www.scopus.com/inward/record.url?scp=71749109252&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=71749109252&partnerID=8YFLogxK

U2 - 10.1016/j.tsf.2009.05.060

DO - 10.1016/j.tsf.2009.05.060

M3 - Article

VL - 517

SP - 6857

EP - 6861

JO - Thin Solid Films

JF - Thin Solid Films

SN - 0040-6090

IS - 24

ER -