Interfacial exchange coupling-modulated magnetism in the insulating heterostructure of CoOx/yttrium iron garnet

Po Chun Chang; Venkata Ramana Mudinepalli; Shi Yu Liu; Hung Lin Lin; Chuan Che Hsu; Yu Tso Liao; Sora Obinata; Takashi Kimura; Ming Yau Chern; Fang Yuh Lo; Wen Chin Lin

doi:10.1016/j.jallcom.2021.159948

Interfacial exchange coupling-modulated magnetism in the insulating heterostructure of CoO_x/yttrium iron garnet

Po Chun Chang, Venkata Ramana Mudinepalli, Shi Yu Liu, Hung Lin Lin, Chuan Che Hsu, Yu Tso Liao, Sora Obinata, Takashi Kimura, Ming Yau Chern, Fang Yuh Lo, Wen Chin Lin

物性物理学

研究成果: ジャーナルへの寄稿 › 学術誌 › 査読

1 被引用数 (Scopus)

抄録

The combination of yttrium iron garnet (Y₃Fe₂(FeO₄)₃, YIG) and ferromagnetic materials or antiferromagnetic materials has attracted much attention because of its potential in applications such as spin pumping. In this study, a high-temperature and oxygen-poor environment was used to deposit a CoO_x top layer on YIG for the observation of magnetic modulation. The temperature- and saturation-field-dependent bias shift of the YIG hysteresis loop was observed. The complex modulation of the magnetic behavior originated from the magnetic coupling of the antiferromagnetic CoO and an additional interfacial coupling of the ferromagnetic CoO_x. Depth-profiling X-ray photoemission spectroscopy revealed the nonuniform stoichiometric distribution in the 20-nm CoO_x layer, which confirmed the origin of the various magnetic coupling effects on the bottom YIG layer. The comparative ferromagnetic resonance measurements also demonstrated the considerable magnetic coupling effect on the dynamic magnetism of the YIG.

本文言語	英語
論文番号	159948
ジャーナル	Journal of Alloys and Compounds
巻	875
DOI	https://doi.org/10.1016/j.jallcom.2021.159948
出版ステータス	出版済み - 9月 15 2021

!!!All Science Journal Classification (ASJC) codes

材料力学
機械工学
金属および合金
材料化学

文献へのアクセス

10.1016/j.jallcom.2021.159948

他のファイルとリンク

引用スタイル

@article{eed25f8ef0bb4f5a8fe8d28b24f0dbbc,

title = "Interfacial exchange coupling-modulated magnetism in the insulating heterostructure of CoOx/yttrium iron garnet",

abstract = "The combination of yttrium iron garnet (Y3Fe2(FeO4)3, YIG) and ferromagnetic materials or antiferromagnetic materials has attracted much attention because of its potential in applications such as spin pumping. In this study, a high-temperature and oxygen-poor environment was used to deposit a CoOx top layer on YIG for the observation of magnetic modulation. The temperature- and saturation-field-dependent bias shift of the YIG hysteresis loop was observed. The complex modulation of the magnetic behavior originated from the magnetic coupling of the antiferromagnetic CoO and an additional interfacial coupling of the ferromagnetic CoOx. Depth-profiling X-ray photoemission spectroscopy revealed the nonuniform stoichiometric distribution in the 20-nm CoOx layer, which confirmed the origin of the various magnetic coupling effects on the bottom YIG layer. The comparative ferromagnetic resonance measurements also demonstrated the considerable magnetic coupling effect on the dynamic magnetism of the YIG.",

author = "Chang, {Po Chun} and Mudinepalli, {Venkata Ramana} and Liu, {Shi Yu} and Lin, {Hung Lin} and Hsu, {Chuan Che} and Liao, {Yu Tso} and Sora Obinata and Takashi Kimura and Chern, {Ming Yau} and Lo, {Fang Yuh} and Lin, {Wen Chin}",

note = "Funding Information: This study was financially sponsored by Ministry of Science and Technology of Taiwan under Grant No. MOST 108–2112-M-003–011-MY2 and JST CREST under Grant No. JPMJCR18J1 . The data that support the findings of this study are available from the corresponding author upon reasonable request. Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = sep,

day = "15",

doi = "10.1016/j.jallcom.2021.159948",

language = "English",

volume = "875",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

}

TY - JOUR

T1 - Interfacial exchange coupling-modulated magnetism in the insulating heterostructure of CoOx/yttrium iron garnet

AU - Chang, Po Chun

AU - Mudinepalli, Venkata Ramana

AU - Liu, Shi Yu

AU - Lin, Hung Lin

AU - Hsu, Chuan Che

AU - Liao, Yu Tso

AU - Obinata, Sora

AU - Kimura, Takashi

AU - Chern, Ming Yau

AU - Lo, Fang Yuh

AU - Lin, Wen Chin

N1 - Funding Information: This study was financially sponsored by Ministry of Science and Technology of Taiwan under Grant No. MOST 108–2112-M-003–011-MY2 and JST CREST under Grant No. JPMJCR18J1 . The data that support the findings of this study are available from the corresponding author upon reasonable request. Publisher Copyright: © 2021 Elsevier B.V.

PY - 2021/9/15

Y1 - 2021/9/15

N2 - The combination of yttrium iron garnet (Y3Fe2(FeO4)3, YIG) and ferromagnetic materials or antiferromagnetic materials has attracted much attention because of its potential in applications such as spin pumping. In this study, a high-temperature and oxygen-poor environment was used to deposit a CoOx top layer on YIG for the observation of magnetic modulation. The temperature- and saturation-field-dependent bias shift of the YIG hysteresis loop was observed. The complex modulation of the magnetic behavior originated from the magnetic coupling of the antiferromagnetic CoO and an additional interfacial coupling of the ferromagnetic CoOx. Depth-profiling X-ray photoemission spectroscopy revealed the nonuniform stoichiometric distribution in the 20-nm CoOx layer, which confirmed the origin of the various magnetic coupling effects on the bottom YIG layer. The comparative ferromagnetic resonance measurements also demonstrated the considerable magnetic coupling effect on the dynamic magnetism of the YIG.

AB - The combination of yttrium iron garnet (Y3Fe2(FeO4)3, YIG) and ferromagnetic materials or antiferromagnetic materials has attracted much attention because of its potential in applications such as spin pumping. In this study, a high-temperature and oxygen-poor environment was used to deposit a CoOx top layer on YIG for the observation of magnetic modulation. The temperature- and saturation-field-dependent bias shift of the YIG hysteresis loop was observed. The complex modulation of the magnetic behavior originated from the magnetic coupling of the antiferromagnetic CoO and an additional interfacial coupling of the ferromagnetic CoOx. Depth-profiling X-ray photoemission spectroscopy revealed the nonuniform stoichiometric distribution in the 20-nm CoOx layer, which confirmed the origin of the various magnetic coupling effects on the bottom YIG layer. The comparative ferromagnetic resonance measurements also demonstrated the considerable magnetic coupling effect on the dynamic magnetism of the YIG.

UR - http://www.scopus.com/inward/record.url?scp=85105830378&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85105830378&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2021.159948

DO - 10.1016/j.jallcom.2021.159948

M3 - Article

AN - SCOPUS:85105830378

SN - 0925-8388

VL - 875

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 159948

ER -