All-optical characterisation of the spintronic Heusler compound Co2Mn0.6Fe0.4Si

Thomas Sebastian; Yuki Kawada; Björn Obry; Thomas Brächer; Philipp Pirro; Dmytro A. Bozhko; Alexander A. Serga; Hiroshi Naganuma; Mikihiko Oogane; Yasuo Ando; Burkard Hillebrands

doi:10.1088/0022-3727/48/16/164015

All-optical characterisation of the spintronic Heusler compound Co₂Mn_0.6Fe_0.4Si

Thomas Sebastian, Yuki Kawada, Björn Obry, Thomas Brächer, Philipp Pirro, Dmytro A. Bozhko, Alexander A. Serga, Hiroshi Naganuma, Mikihiko Oogane, Yasuo Ando, Burkard Hillebrands

ENG - Applied Physics

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

This article is devoted to the evaluation of the material parameters of the Heusler compound Co2Mn0.6Fe0.4Si via Brillouin light scattering spectroscopy. Recently, cobalt-based Heusler compounds and, in particular, the compound Co2Mn0.6Fe0.4Si have attracted huge interest in the fields of spintronics and magnon spintronics. Thus, evaluation of the material parameters that govern spin dynamics in the gigahertz regime is essential to develop and understand advanced experimental scenarios as well as potential technical applications. We demonstrate the evaluation of these parameters based on wavevector as well as time-resolved Brillouin light scattering spectroscopy. The focus of our study is the determination of the spin-wave damping in an individual microstructure as wells as of the exchange constant of Co2Mn0.6Fe0.4Si - parameters, that are difficult to estimate with alternative techniques.

Original language	English
Article number	164015
Journal	Journal of Physics D: Applied Physics
Volume	48
Issue number	16
DOIs	https://doi.org/10.1088/0022-3727/48/16/164015
Publication status	Published - 2015 Apr 29

Keywords

Brillouin light scattering
magnonics
spin waves

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Acoustics and Ultrasonics
Surfaces, Coatings and Films

Access to Document

10.1088/0022-3727/48/16/164015

Cite this

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title = "All-optical characterisation of the spintronic Heusler compound Co2Mn0.6Fe0.4Si",

abstract = "This article is devoted to the evaluation of the material parameters of the Heusler compound Co2Mn0.6Fe0.4Si via Brillouin light scattering spectroscopy. Recently, cobalt-based Heusler compounds and, in particular, the compound Co2Mn0.6Fe0.4Si have attracted huge interest in the fields of spintronics and magnon spintronics. Thus, evaluation of the material parameters that govern spin dynamics in the gigahertz regime is essential to develop and understand advanced experimental scenarios as well as potential technical applications. We demonstrate the evaluation of these parameters based on wavevector as well as time-resolved Brillouin light scattering spectroscopy. The focus of our study is the determination of the spin-wave damping in an individual microstructure as wells as of the exchange constant of Co2Mn0.6Fe0.4Si - parameters, that are difficult to estimate with alternative techniques.",

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AU - Sebastian, Thomas

AU - Kawada, Yuki

AU - Obry, Björn

AU - Brächer, Thomas

AU - Pirro, Philipp

AU - Bozhko, Dmytro A.

AU - Serga, Alexander A.

AU - Naganuma, Hiroshi

AU - Oogane, Mikihiko

AU - Ando, Yasuo

AU - Hillebrands, Burkard

PY - 2015/4/29

Y1 - 2015/4/29

N2 - This article is devoted to the evaluation of the material parameters of the Heusler compound Co2Mn0.6Fe0.4Si via Brillouin light scattering spectroscopy. Recently, cobalt-based Heusler compounds and, in particular, the compound Co2Mn0.6Fe0.4Si have attracted huge interest in the fields of spintronics and magnon spintronics. Thus, evaluation of the material parameters that govern spin dynamics in the gigahertz regime is essential to develop and understand advanced experimental scenarios as well as potential technical applications. We demonstrate the evaluation of these parameters based on wavevector as well as time-resolved Brillouin light scattering spectroscopy. The focus of our study is the determination of the spin-wave damping in an individual microstructure as wells as of the exchange constant of Co2Mn0.6Fe0.4Si - parameters, that are difficult to estimate with alternative techniques.

AB - This article is devoted to the evaluation of the material parameters of the Heusler compound Co2Mn0.6Fe0.4Si via Brillouin light scattering spectroscopy. Recently, cobalt-based Heusler compounds and, in particular, the compound Co2Mn0.6Fe0.4Si have attracted huge interest in the fields of spintronics and magnon spintronics. Thus, evaluation of the material parameters that govern spin dynamics in the gigahertz regime is essential to develop and understand advanced experimental scenarios as well as potential technical applications. We demonstrate the evaluation of these parameters based on wavevector as well as time-resolved Brillouin light scattering spectroscopy. The focus of our study is the determination of the spin-wave damping in an individual microstructure as wells as of the exchange constant of Co2Mn0.6Fe0.4Si - parameters, that are difficult to estimate with alternative techniques.

KW - Brillouin light scattering

KW - magnonics

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