Magnetic excitation localized near the interface between two ultrathin ferromagnets films

Ouahiba Nafa, Boualem Bourahla, Antoine Khater

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper describes spinwaves localized states and the coherent magnon transport via magnetic interface between two different Heisenberg ultrathin ferromagnets films A/B and the inverse B/A. The model system consists of two semi-infinite ferromagnetically ordered slabs A and B, with different structures and the same thickness, joined together. The crystalline thin films A and B have, respectively, simple cubic and hexagonal meshes. The transmission ofmagnons, scattering coherently atthe interface boundary and localized spin states are calculated and analyzed for the both films A/B and B/A. The theoretical calculations are carried out using the matching method. Transmission and reflection scattering cross sections are determined from elements of a Landauer type scattering matrix. The results highlight the localized spin states on the interface domain and their interactions with incident magnons. The results demonstrate also the magnetic properties of thin films at a microscopic scale. The calculated properties are presented for all accessible frequencies in the propagating bands, and for the interatomic magnetic exchange of the A and B films, and their spin intensity, with no externally applied magnetic field. The magnons modes associated with interface domain, in layered structures, interact with propagating modes of the perfect films, located on both sides, leading to interesting magnetic behaviors.

Original languageEnglish
Pages (from-to)282-289
Number of pages8
JournalThin Solid Films
Volume540
DOIs
Publication statusPublished - 1 Jul 2013
Externally publishedYes

Fingerprint

Ultrathin films
Scattering
magnons
excitation
Thin films
Magnetic properties
S matrix theory
thin films
scattering cross sections
Magnetic fields
Crystalline materials
mesh
slabs
magnetic properties
scattering
magnetic fields
interactions

Keywords

  • Dynamic properties of thin films
  • Localized spin states
  • Magnetic interface
  • Magnon transmission

ASJC Scopus subject areas

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

Cite this

Magnetic excitation localized near the interface between two ultrathin ferromagnets films. / Nafa, Ouahiba; Bourahla, Boualem; Khater, Antoine.

In: Thin Solid Films, Vol. 540, 01.07.2013, p. 282-289.

Research output: Contribution to journalArticle

Nafa, Ouahiba ; Bourahla, Boualem ; Khater, Antoine. / Magnetic excitation localized near the interface between two ultrathin ferromagnets films. In: Thin Solid Films. 2013 ; Vol. 540. pp. 282-289.
@article{111b8e5a33fa4e318fc2fe39277809f9,
title = "Magnetic excitation localized near the interface between two ultrathin ferromagnets films",
abstract = "This paper describes spinwaves localized states and the coherent magnon transport via magnetic interface between two different Heisenberg ultrathin ferromagnets films A/B and the inverse B/A. The model system consists of two semi-infinite ferromagnetically ordered slabs A and B, with different structures and the same thickness, joined together. The crystalline thin films A and B have, respectively, simple cubic and hexagonal meshes. The transmission ofmagnons, scattering coherently atthe interface boundary and localized spin states are calculated and analyzed for the both films A/B and B/A. The theoretical calculations are carried out using the matching method. Transmission and reflection scattering cross sections are determined from elements of a Landauer type scattering matrix. The results highlight the localized spin states on the interface domain and their interactions with incident magnons. The results demonstrate also the magnetic properties of thin films at a microscopic scale. The calculated properties are presented for all accessible frequencies in the propagating bands, and for the interatomic magnetic exchange of the A and B films, and their spin intensity, with no externally applied magnetic field. The magnons modes associated with interface domain, in layered structures, interact with propagating modes of the perfect films, located on both sides, leading to interesting magnetic behaviors.",
keywords = "Dynamic properties of thin films, Localized spin states, Magnetic interface, Magnon transmission",
author = "Ouahiba Nafa and Boualem Bourahla and Antoine Khater",
year = "2013",
month = "7",
day = "1",
doi = "10.1016/j.tsf.2013.06.011",
language = "English",
volume = "540",
pages = "282--289",
journal = "Thin Solid Films",
issn = "0040-6090",
publisher = "Elsevier",

}

TY - JOUR

T1 - Magnetic excitation localized near the interface between two ultrathin ferromagnets films

AU - Nafa, Ouahiba

AU - Bourahla, Boualem

AU - Khater, Antoine

PY - 2013/7/1

Y1 - 2013/7/1

N2 - This paper describes spinwaves localized states and the coherent magnon transport via magnetic interface between two different Heisenberg ultrathin ferromagnets films A/B and the inverse B/A. The model system consists of two semi-infinite ferromagnetically ordered slabs A and B, with different structures and the same thickness, joined together. The crystalline thin films A and B have, respectively, simple cubic and hexagonal meshes. The transmission ofmagnons, scattering coherently atthe interface boundary and localized spin states are calculated and analyzed for the both films A/B and B/A. The theoretical calculations are carried out using the matching method. Transmission and reflection scattering cross sections are determined from elements of a Landauer type scattering matrix. The results highlight the localized spin states on the interface domain and their interactions with incident magnons. The results demonstrate also the magnetic properties of thin films at a microscopic scale. The calculated properties are presented for all accessible frequencies in the propagating bands, and for the interatomic magnetic exchange of the A and B films, and their spin intensity, with no externally applied magnetic field. The magnons modes associated with interface domain, in layered structures, interact with propagating modes of the perfect films, located on both sides, leading to interesting magnetic behaviors.

AB - This paper describes spinwaves localized states and the coherent magnon transport via magnetic interface between two different Heisenberg ultrathin ferromagnets films A/B and the inverse B/A. The model system consists of two semi-infinite ferromagnetically ordered slabs A and B, with different structures and the same thickness, joined together. The crystalline thin films A and B have, respectively, simple cubic and hexagonal meshes. The transmission ofmagnons, scattering coherently atthe interface boundary and localized spin states are calculated and analyzed for the both films A/B and B/A. The theoretical calculations are carried out using the matching method. Transmission and reflection scattering cross sections are determined from elements of a Landauer type scattering matrix. The results highlight the localized spin states on the interface domain and their interactions with incident magnons. The results demonstrate also the magnetic properties of thin films at a microscopic scale. The calculated properties are presented for all accessible frequencies in the propagating bands, and for the interatomic magnetic exchange of the A and B films, and their spin intensity, with no externally applied magnetic field. The magnons modes associated with interface domain, in layered structures, interact with propagating modes of the perfect films, located on both sides, leading to interesting magnetic behaviors.

KW - Dynamic properties of thin films

KW - Localized spin states

KW - Magnetic interface

KW - Magnon transmission

UR - http://www.scopus.com/inward/record.url?scp=84901848077&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84901848077&partnerID=8YFLogxK

U2 - 10.1016/j.tsf.2013.06.011

DO - 10.1016/j.tsf.2013.06.011

M3 - Article

VL - 540

SP - 282

EP - 289

JO - Thin Solid Films

JF - Thin Solid Films

SN - 0040-6090

ER -