Half-metallic nature of the low-temperature grown Co2MnSi films on SrTiO3

K. Kudo; S. Yamada; M. Yafuso; T. Kimura; V. K. Lazarov; K. Hamaya

doi:10.1016/j.jallcom.2020.155571

Half-metallic nature of the low-temperature grown Co₂MnSi films on SrTiO₃

K. Kudo, S. Yamada, M. Yafuso, T. Kimura, V. K. Lazarov, K. Hamaya

Condensed Matter Physics

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

Abstract

We experimentally show that half-metallic Co₂MnSi films can be grown on SrTiO₃(001) at around 350 °C by molecular beam epitaxy. Despite relatively low-temperature grown Co₂MnSi films, L2₁-ordered structures, high saturation magnetic moments of ∼5.0 μ_B/f.u., and the negative sign of the anisotropic magnetoresistance (AMR) indicating half-metallic nature are obtained. For the 350°C-grown Co₂MnSi films, a low Gilbert damping constant of ∼0.0035, implying the high spin polarization, is evaluated. This study will open a way for developing novel spintronic applications consisting of Co₂MnSi and perovskite oxides such as high-performance interfacial multiferroic systems and efficient spin-to-charge conversion systems.

Original language	English
Article number	155571
Journal	Journal of Alloys and Compounds
Volume	854
DOIs	https://doi.org/10.1016/j.jallcom.2020.155571
Publication status	Published - Feb 15 2021

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2020.155571

Fingerprint Dive into the research topics of 'Half-metallic nature of the low-temperature grown Co<sub>2</sub>MnSi films on SrTiO<sub>3</sub>'. Together they form a unique fingerprint.

Cite this

@article{e4ddf0b2b7814891bbae3554c676accf,

title = "Half-metallic nature of the low-temperature grown Co2MnSi films on SrTiO3",

abstract = "We experimentally show that half-metallic Co2MnSi films can be grown on SrTiO3(001) at around 350 °C by molecular beam epitaxy. Despite relatively low-temperature grown Co2MnSi films, L21-ordered structures, high saturation magnetic moments of ∼5.0 μB/f.u., and the negative sign of the anisotropic magnetoresistance (AMR) indicating half-metallic nature are obtained. For the 350°C-grown Co2MnSi films, a low Gilbert damping constant of ∼0.0035, implying the high spin polarization, is evaluated. This study will open a way for developing novel spintronic applications consisting of Co2MnSi and perovskite oxides such as high-performance interfacial multiferroic systems and efficient spin-to-charge conversion systems.",

author = "K. Kudo and S. Yamada and M. Yafuso and T. Kimura and Lazarov, {V. K.} and K. Hamaya",

note = "Funding Information: The authors would like to thank Mr. Seo Hyun Ho of Daegu Gyeongbuk Institute of Science and Technology and Mr. S. Obinata and Mr. Y. Takayama of Kyushu University for supporting the growth of Co2MnSi films and for supporting FMR measurements, respectively. This work was partly supported by JST CREST Grant Number JPMJCR18J1 and JSPS KAKENHI Grant Number 18KK0111. Funding Information: The authors would like to thank Mr. Seo Hyun Ho of Daegu Gyeongbuk Institute of Science and Technology and Mr. S. Obinata and Mr. Y. Takayama of Kyushu University for supporting the growth of Co 2 MnSi films and for supporting FMR measurements, respectively. This work was partly supported by JST CREST Grant Number JPMJCR18J1 and JSPS KAKENHI Grant Number 18KK0111 . Publisher Copyright: {\textcopyright} 2020 Elsevier B.V. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

year = "2021",

month = feb,

day = "15",

doi = "10.1016/j.jallcom.2020.155571",

language = "English",

volume = "854",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Half-metallic nature of the low-temperature grown Co2MnSi films on SrTiO3

AU - Kudo, K.

AU - Yamada, S.

AU - Yafuso, M.

AU - Kimura, T.

AU - Lazarov, V. K.

AU - Hamaya, K.

N1 - Funding Information: The authors would like to thank Mr. Seo Hyun Ho of Daegu Gyeongbuk Institute of Science and Technology and Mr. S. Obinata and Mr. Y. Takayama of Kyushu University for supporting the growth of Co2MnSi films and for supporting FMR measurements, respectively. This work was partly supported by JST CREST Grant Number JPMJCR18J1 and JSPS KAKENHI Grant Number 18KK0111. Funding Information: The authors would like to thank Mr. Seo Hyun Ho of Daegu Gyeongbuk Institute of Science and Technology and Mr. S. Obinata and Mr. Y. Takayama of Kyushu University for supporting the growth of Co 2 MnSi films and for supporting FMR measurements, respectively. This work was partly supported by JST CREST Grant Number JPMJCR18J1 and JSPS KAKENHI Grant Number 18KK0111 . Publisher Copyright: © 2020 Elsevier B.V. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2021/2/15

Y1 - 2021/2/15

N2 - We experimentally show that half-metallic Co2MnSi films can be grown on SrTiO3(001) at around 350 °C by molecular beam epitaxy. Despite relatively low-temperature grown Co2MnSi films, L21-ordered structures, high saturation magnetic moments of ∼5.0 μB/f.u., and the negative sign of the anisotropic magnetoresistance (AMR) indicating half-metallic nature are obtained. For the 350°C-grown Co2MnSi films, a low Gilbert damping constant of ∼0.0035, implying the high spin polarization, is evaluated. This study will open a way for developing novel spintronic applications consisting of Co2MnSi and perovskite oxides such as high-performance interfacial multiferroic systems and efficient spin-to-charge conversion systems.

AB - We experimentally show that half-metallic Co2MnSi films can be grown on SrTiO3(001) at around 350 °C by molecular beam epitaxy. Despite relatively low-temperature grown Co2MnSi films, L21-ordered structures, high saturation magnetic moments of ∼5.0 μB/f.u., and the negative sign of the anisotropic magnetoresistance (AMR) indicating half-metallic nature are obtained. For the 350°C-grown Co2MnSi films, a low Gilbert damping constant of ∼0.0035, implying the high spin polarization, is evaluated. This study will open a way for developing novel spintronic applications consisting of Co2MnSi and perovskite oxides such as high-performance interfacial multiferroic systems and efficient spin-to-charge conversion systems.

UR - http://www.scopus.com/inward/record.url?scp=85091658940&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85091658940&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2020.155571

DO - 10.1016/j.jallcom.2020.155571

M3 - Article

AN - SCOPUS:85091658940

VL - 854

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

M1 - 155571