High propagating velocity of spin waves and temperature dependent damping in a CoFeB thin film

Haiming Yu; R. Huber; T. Schwarze; F. Brandl; T. Rapp; P. Berberich; G. Duerr; D. Grundler

doi:10.1063/1.4731273

High propagating velocity of spin waves and temperature dependent damping in a CoFeB thin film

Haiming Yu^*
, R. Huber
, T. Schwarze
, F. Brandl
, T. Rapp
, P. Berberich
, G. Duerr
, D. Grundler

^*Corresponding author for this work

Technical University of Munich

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

85 Scopus citations

Abstract

Spin wave propagation in a magnetron-sputtered CoFeB thin film is investigated. We apply both in-plane and out-of-plane magnetic fields. At room temperature, we find velocities of up to 25 and 3.5 km/s, respectively. These values are much larger compared to a thin permalloy film. Analyzing the resonance linewidth, we obtain an intrinsic Gilbert damping parameter of about 0.007 at room temperature. It increases to 0.023 at 5 K. CoFeB is a promising material for magnonic devices supporting fast propagating spin waves.

Original language	English
Article number	262412
Journal	Applied Physics Letters
Volume	100
Issue number	26
DOIs	https://doi.org/10.1063/1.4731273
State	Published - 25 Jun 2012
Externally published	Yes

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title = "High propagating velocity of spin waves and temperature dependent damping in a CoFeB thin film",

abstract = "Spin wave propagation in a magnetron-sputtered CoFeB thin film is investigated. We apply both in-plane and out-of-plane magnetic fields. At room temperature, we find velocities of up to 25 and 3.5 km/s, respectively. These values are much larger compared to a thin permalloy film. Analyzing the resonance linewidth, we obtain an intrinsic Gilbert damping parameter of about 0.007 at room temperature. It increases to 0.023 at 5 K. CoFeB is a promising material for magnonic devices supporting fast propagating spin waves.",

author = "Haiming Yu and R. Huber and T. Schwarze and F. Brandl and T. Rapp and P. Berberich and G. Duerr and D. Grundler",

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T1 - High propagating velocity of spin waves and temperature dependent damping in a CoFeB thin film

AU - Yu, Haiming

AU - Huber, R.

AU - Schwarze, T.

AU - Brandl, F.

AU - Rapp, T.

AU - Berberich, P.

AU - Duerr, G.

AU - Grundler, D.

PY - 2012/6/25

Y1 - 2012/6/25

N2 - Spin wave propagation in a magnetron-sputtered CoFeB thin film is investigated. We apply both in-plane and out-of-plane magnetic fields. At room temperature, we find velocities of up to 25 and 3.5 km/s, respectively. These values are much larger compared to a thin permalloy film. Analyzing the resonance linewidth, we obtain an intrinsic Gilbert damping parameter of about 0.007 at room temperature. It increases to 0.023 at 5 K. CoFeB is a promising material for magnonic devices supporting fast propagating spin waves.

AB - Spin wave propagation in a magnetron-sputtered CoFeB thin film is investigated. We apply both in-plane and out-of-plane magnetic fields. At room temperature, we find velocities of up to 25 and 3.5 km/s, respectively. These values are much larger compared to a thin permalloy film. Analyzing the resonance linewidth, we obtain an intrinsic Gilbert damping parameter of about 0.007 at room temperature. It increases to 0.023 at 5 K. CoFeB is a promising material for magnonic devices supporting fast propagating spin waves.

UR - https://www.scopus.com/pages/publications/84863324788

U2 - 10.1063/1.4731273

DO - 10.1063/1.4731273

M3 - 文章

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SN - 0003-6951

VL - 100

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 26

M1 - 262412

ER -

High propagating velocity of spin waves and temperature dependent damping in a CoFeB thin film

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