Carrier mobility of iron oxide nanoparticles supported on ferroelectrics studied by Mössbauer spectroscopy

T. Okamoto; J. Kano; S. Nakamura; A. Fuwa; T. Otoyama; Y. Nakazaki; H. Hashimoto; J. Takada; M. Ito; N. Ikeda

doi:10.1007/s10751-012-0687-3

Carrier mobility of iron oxide nanoparticles supported on ferroelectrics studied by Mössbauer spectroscopy

T. Okamoto^*, J. Kano, S. Nakamura, A. Fuwa, T. Otoyama, Y. Nakazaki, H. Hashimoto, J. Takada, M. Ito, N. Ikeda

^*この研究の対応する著者

研究成果: Article › 査読

3 被引用数 (Scopus)

抄録

⁵⁷Fe Mössbauer spectroscopy was performed on two types of Fe oxide nanoparticles supported on a typical ferroelectric, BaTiO3. It was found that the valence state of FeO nanoparticles changed to a mixed 2+/3+ state at high temperature where BaTiO₃ shows paraelectric behaviour. We attribute this phenomenon to the fluctuation of electric dipoles which realizes carrier injection into the Fe oxides. This is the first report which discusses a dynamical valence state of transition metal oxides supported on ferroelectrics.

本文言語	English
ページ（範囲）	147-152
ページ数	6
ジャーナル	Hyperfine Interactions
巻	219
号	1-3
DOI	https://doi.org/10.1007/s10751-012-0687-3
出版ステータス	Published - 2013

ASJC Scopus subject areas

凝縮系物理学
核物理学および高エネルギー物理学
原子分子物理学および光学
物理化学および理論化学

文献へのアクセス

10.1007/s10751-012-0687-3

他のファイルとリンク

引用スタイル

@article{d7fd2d428a1841b5855ee0e677c2f66a,

title = "Carrier mobility of iron oxide nanoparticles supported on ferroelectrics studied by M{\"o}ssbauer spectroscopy",

abstract = "57Fe M{\"o}ssbauer spectroscopy was performed on two types of Fe oxide nanoparticles supported on a typical ferroelectric, BaTiO3. It was found that the valence state of FeO nanoparticles changed to a mixed 2+/3+ state at high temperature where BaTiO3 shows paraelectric behaviour. We attribute this phenomenon to the fluctuation of electric dipoles which realizes carrier injection into the Fe oxides. This is the first report which discusses a dynamical valence state of transition metal oxides supported on ferroelectrics.",

keywords = "Electric dipole, Ferroelectric, M{\"o}ssbauer spectroscopy, Nanoparticles",

author = "T. Okamoto and J. Kano and S. Nakamura and A. Fuwa and T. Otoyama and Y. Nakazaki and H. Hashimoto and J. Takada and M. Ito and N. Ikeda",

year = "2013",

doi = "10.1007/s10751-012-0687-3",

language = "English",

volume = "219",

pages = "147--152",

journal = "Hyperfine Interaction",

issn = "0304-3843",

publisher = "Springer Netherlands",

number = "1-3",

}

TY - JOUR

T1 - Carrier mobility of iron oxide nanoparticles supported on ferroelectrics studied by Mössbauer spectroscopy

AU - Okamoto, T.

AU - Kano, J.

AU - Nakamura, S.

AU - Fuwa, A.

AU - Otoyama, T.

AU - Nakazaki, Y.

AU - Hashimoto, H.

AU - Takada, J.

AU - Ito, M.

AU - Ikeda, N.

PY - 2013

Y1 - 2013

N2 - 57Fe Mössbauer spectroscopy was performed on two types of Fe oxide nanoparticles supported on a typical ferroelectric, BaTiO3. It was found that the valence state of FeO nanoparticles changed to a mixed 2+/3+ state at high temperature where BaTiO3 shows paraelectric behaviour. We attribute this phenomenon to the fluctuation of electric dipoles which realizes carrier injection into the Fe oxides. This is the first report which discusses a dynamical valence state of transition metal oxides supported on ferroelectrics.

AB - 57Fe Mössbauer spectroscopy was performed on two types of Fe oxide nanoparticles supported on a typical ferroelectric, BaTiO3. It was found that the valence state of FeO nanoparticles changed to a mixed 2+/3+ state at high temperature where BaTiO3 shows paraelectric behaviour. We attribute this phenomenon to the fluctuation of electric dipoles which realizes carrier injection into the Fe oxides. This is the first report which discusses a dynamical valence state of transition metal oxides supported on ferroelectrics.

KW - Electric dipole

KW - Ferroelectric

KW - Mössbauer spectroscopy

KW - Nanoparticles

UR - http://www.scopus.com/inward/record.url?scp=84876170824&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84876170824&partnerID=8YFLogxK

U2 - 10.1007/s10751-012-0687-3

DO - 10.1007/s10751-012-0687-3

M3 - Article

AN - SCOPUS:84876170824

SN - 0304-3843

VL - 219

SP - 147

EP - 152

JO - Hyperfine Interaction

JF - Hyperfine Interaction

IS - 1-3

ER -

Carrier mobility of iron oxide nanoparticles supported on ferroelectrics studied by Mössbauer spectroscopy

抄録

ASJC Scopus subject areas

文献へのアクセス

他のファイルとリンク

フィンガープリント

引用スタイル