Mixed valence state and electrical conductivity of La1-xSrxCrO3

Xiaomei Liu; Wenhui Su; Zhe Lu; Jiang Liu; Li Pei; Wei Liu; Lanying He

doi:10.1016/S0925-8388(00)00735-0

Mixed valence state and electrical conductivity of La_1-xSr_xCrO₃

Xiaomei Liu
, Wenhui Su
, Zhe Lu
, Jiang Liu
, Li Pei
, Wei Liu
, Lanying He

Jilin University
CAS - International Center for Material Physics
China Center of Advanced Science and Technology World Laboratory

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

74 Scopus citations

Abstract

La_1-xSr_xCrO₃ (x = 0.0 to approximately 0.5) samples were prepared by the sol-gel method. The crystal structures of La_1-xSr_xCrO₃ at room temperature all are of the othorhombic perovskite GdFeO₃-type. XPS analysis indicates that chromium ions are in mixed valence state. The introduction of Sr²⁺ into the lattice is compensated by the oxidation from Cr³⁺ to Cr⁶⁺. With x increasing, the amount of Cr⁶⁺ increases. The presence of the Cr⁶⁺ is one of the key factors that affect the electric conductivity of La_1-xSr_xCrO₃.

Original language	English
Pages (from-to)	21-23
Number of pages	3
Journal	Journal of Alloys and Compounds
Volume	305
Issue number	1-2
DOIs	https://doi.org/10.1016/S0925-8388(00)00735-0
State	Published - 6 Jun 2000
Externally published	Yes

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title = "Mixed valence state and electrical conductivity of La1-xSrxCrO3",

abstract = "La1-xSrxCrO3 (x = 0.0 to approximately 0.5) samples were prepared by the sol-gel method. The crystal structures of La1-xSrxCrO3 at room temperature all are of the othorhombic perovskite GdFeO3-type. XPS analysis indicates that chromium ions are in mixed valence state. The introduction of Sr2+ into the lattice is compensated by the oxidation from Cr3+ to Cr6+. With x increasing, the amount of Cr6+ increases. The presence of the Cr6+ is one of the key factors that affect the electric conductivity of La1-xSrxCrO3.",

author = "Xiaomei Liu and Wenhui Su and Zhe Lu and Jiang Liu and Li Pei and Wei Liu and Lanying He",

year = "2000",

month = jun,

day = "6",

doi = "10.1016/S0925-8388(00)00735-0",

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TY - JOUR

T1 - Mixed valence state and electrical conductivity of La1-xSrxCrO3

AU - Liu, Xiaomei

AU - Su, Wenhui

AU - Lu, Zhe

AU - Liu, Jiang

AU - Pei, Li

AU - Liu, Wei

AU - He, Lanying

PY - 2000/6/6

Y1 - 2000/6/6

N2 - La1-xSrxCrO3 (x = 0.0 to approximately 0.5) samples were prepared by the sol-gel method. The crystal structures of La1-xSrxCrO3 at room temperature all are of the othorhombic perovskite GdFeO3-type. XPS analysis indicates that chromium ions are in mixed valence state. The introduction of Sr2+ into the lattice is compensated by the oxidation from Cr3+ to Cr6+. With x increasing, the amount of Cr6+ increases. The presence of the Cr6+ is one of the key factors that affect the electric conductivity of La1-xSrxCrO3.

AB - La1-xSrxCrO3 (x = 0.0 to approximately 0.5) samples were prepared by the sol-gel method. The crystal structures of La1-xSrxCrO3 at room temperature all are of the othorhombic perovskite GdFeO3-type. XPS analysis indicates that chromium ions are in mixed valence state. The introduction of Sr2+ into the lattice is compensated by the oxidation from Cr3+ to Cr6+. With x increasing, the amount of Cr6+ increases. The presence of the Cr6+ is one of the key factors that affect the electric conductivity of La1-xSrxCrO3.

UR - https://www.scopus.com/pages/publications/0033743095

U2 - 10.1016/S0925-8388(00)00735-0

DO - 10.1016/S0925-8388(00)00735-0

M3 - 文章

AN - SCOPUS:0033743095

SN - 0925-8388

VL - 305

SP - 21

EP - 23

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Mixed valence state and electrical conductivity of La_1-xSr_xCrO₃

Abstract

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