Low magnetic damping constant in half-metallic Co2FeAl Heusler alloy thin films grown by molecular beam epitaxy-Reference-Cited by-同舟云学术

Low magnetic damping constant in half-metallic Co2FeAl Heusler alloy thin films grown by molecular beam epitaxy

Published:2023-02-01 Issue:2 Volume:13 Page:
ISSN:2158-3226
Container-title:AIP Advances
language:en
Short-container-title:

Author:

Hojo Takayuki¹^ORCID,Tezuka Nobuki²,Nakano Takafumi¹^ORCID,Tsunoda Masakiyo³^ORCID,Oogane Mikihiko¹⁴^ORCID

Affiliation:

1. Department of Applied Physics, Graduate School of Engineering, Tohoku University 1 , Sendai 980-8579, Japan

2. Department of Metallurgy Science and Materials Processing, Graduate School of Engineering, Tohoku University 2 , Sendai 980-8579, Japan

3. Department of Electronic Engineering, Graduate School of Engineering, Tohoku University 3 , Sendai 980-8579, Japan

4. Center for Science and Innovation in Spintronics (Core Research Cluster), Organization for Advanced Studies, Tohoku University 4 , Sendai 980-8577, Japan

Abstract

Half-metallic Co2FeAl Heusler alloy thin films with various thickness were prepared by MBE method and its magnetic and crystalline properties were investigated. At the thickness of 20 nm and above, good magnetic properties and high B2-order parameter was obtained. In addition, magnetic damping constant was evaluated from peak-to-peak linewidth measured by FMR and ultra-low magnetic damping constant below 0.001 was obtained at the film thickness of 30 nm. These results are thanks to the excellent half-metallicity in the Co2FeAl films prepared by MBE.

Funder

New Energy and Industrial Technology Development Organization

the GP-Spin Program at Tohoku University

the Center for Science and Innovation in Spintronics

JST Spring

Publisher

AIP Publishing

Subject

General Physics and Astronomy

Link

https://pubs.aip.org/aip/adv/article-pdf/doi/10.1063/9.0000419/16758235/025204_1_online.pdf

Reference23 articles.