Magnetic and electronic properties of double perovskite Sr 2-xLaxVMoO6

Hiroyuki Matsushima; Hirotaka Gotoh; Yoichi Takeda; Kenji Ueda; Hidefumi Asano

doi:10.1143/JJAP.50.103004

Magnetic and electronic properties of double perovskite Sr _2-xLa_xVMoO₆

Hiroyuki Matsushima, Hirotaka Gotoh, Yoichi Takeda, Kenji Ueda^*, Hidefumi Asano

^*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

The magnetic and electronic properties of double perovskite Sr _2-xLa_xVMoO₆ (x = 0:9-1:2) polycrystalline bulk samples have been investigated. Magnetization and electrical resistivity measurements indicate that Sr_2-xLa_xVMoO₆ is an antiferromagnetic metal with an antiferromagnetic transition temperature in the range 123-146 K. X-ray photoemission spectroscopy measurements reveal that Mo has a tetravalent state (Mo⁴⁺) and V has a trivalent state (V ³⁺) in SrLaVMoO₆. These results indicate that V ³⁺ (3d²) ions are antiferromagnetically coupled with Mo⁴⁺ (4d²) ions. Electron-doping effects of Sr _2+xLa_xVMoO₆ by La substitution differed from those of half-metallic Sr_2-xLa_xFeMoO₆. This can be qualitatively explained by considering the different electron-doped orbitals and ordering ratios of B-site ions between Sr_2-xLa _xVMoO₆ and Sr_2-xLa_xFeMoO₆ (Mo/V or Mo/Fe).

Original language	English
Journal	Japanese journal of applied physics
Volume	50
Issue number	10 PART 1
DOIs	https://doi.org/10.1143/JJAP.50.103004
Publication status	Published - 2011 Oct
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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title = "Magnetic and electronic properties of double perovskite Sr 2-xLaxVMoO6",

abstract = "The magnetic and electronic properties of double perovskite Sr 2-xLaxVMoO6 (x = 0:9-1:2) polycrystalline bulk samples have been investigated. Magnetization and electrical resistivity measurements indicate that Sr2-xLaxVMoO6 is an antiferromagnetic metal with an antiferromagnetic transition temperature in the range 123-146 K. X-ray photoemission spectroscopy measurements reveal that Mo has a tetravalent state (Mo4+) and V has a trivalent state (V 3+) in SrLaVMoO6. These results indicate that V 3+ (3d2) ions are antiferromagnetically coupled with Mo4+ (4d2) ions. Electron-doping effects of Sr 2+xLaxVMoO6 by La substitution differed from those of half-metallic Sr2-xLaxFeMoO6. This can be qualitatively explained by considering the different electron-doped orbitals and ordering ratios of B-site ions between Sr2-xLa xVMoO6 and Sr2-xLaxFeMoO6 (Mo/V or Mo/Fe).",

author = "Hiroyuki Matsushima and Hirotaka Gotoh and Yoichi Takeda and Kenji Ueda and Hidefumi Asano",

year = "2011",

month = oct,

doi = "10.1143/JJAP.50.103004",

language = "English",

volume = "50",

journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",

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publisher = "Japan Society of Applied Physics",

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T1 - Magnetic and electronic properties of double perovskite Sr 2-xLaxVMoO6

AU - Matsushima, Hiroyuki

AU - Gotoh, Hirotaka

AU - Takeda, Yoichi

AU - Ueda, Kenji

AU - Asano, Hidefumi

PY - 2011/10

Y1 - 2011/10

N2 - The magnetic and electronic properties of double perovskite Sr 2-xLaxVMoO6 (x = 0:9-1:2) polycrystalline bulk samples have been investigated. Magnetization and electrical resistivity measurements indicate that Sr2-xLaxVMoO6 is an antiferromagnetic metal with an antiferromagnetic transition temperature in the range 123-146 K. X-ray photoemission spectroscopy measurements reveal that Mo has a tetravalent state (Mo4+) and V has a trivalent state (V 3+) in SrLaVMoO6. These results indicate that V 3+ (3d2) ions are antiferromagnetically coupled with Mo4+ (4d2) ions. Electron-doping effects of Sr 2+xLaxVMoO6 by La substitution differed from those of half-metallic Sr2-xLaxFeMoO6. This can be qualitatively explained by considering the different electron-doped orbitals and ordering ratios of B-site ions between Sr2-xLa xVMoO6 and Sr2-xLaxFeMoO6 (Mo/V or Mo/Fe).

AB - The magnetic and electronic properties of double perovskite Sr 2-xLaxVMoO6 (x = 0:9-1:2) polycrystalline bulk samples have been investigated. Magnetization and electrical resistivity measurements indicate that Sr2-xLaxVMoO6 is an antiferromagnetic metal with an antiferromagnetic transition temperature in the range 123-146 K. X-ray photoemission spectroscopy measurements reveal that Mo has a tetravalent state (Mo4+) and V has a trivalent state (V 3+) in SrLaVMoO6. These results indicate that V 3+ (3d2) ions are antiferromagnetically coupled with Mo4+ (4d2) ions. Electron-doping effects of Sr 2+xLaxVMoO6 by La substitution differed from those of half-metallic Sr2-xLaxFeMoO6. This can be qualitatively explained by considering the different electron-doped orbitals and ordering ratios of B-site ions between Sr2-xLa xVMoO6 and Sr2-xLaxFeMoO6 (Mo/V or Mo/Fe).

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Magnetic and electronic properties of double perovskite Sr _2-xLa_xVMoO₆

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