Charge ordering in low-doping rate A1-xBxMnO3 (A: La, Pr; B: Sr, Ca)

T. Inami; O. Hino; S. Nohdo; R. Kanao; N. Ikeda; Y. Yamada; S. Katano

doi:10.1016/S0921-4526(97)00611-X

Charge ordering in low-doping rate A_1-xB_xMnO₃ (A: La, Pr; B: Sr, Ca)

T. Inami, O. Hino, S. Nohdo, R. Kanao, N. Ikeda, Y. Yamada, S. Katano

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

4 Citations (Scopus)

Abstract

We have found charge ordering in perovskite-type manganese oxides at low-carrier-doping region in neutron diffraction experiments. In La_1-xSr_xMnO₃ (x = 0.1 and 0.15), we observed superlattice reflections at commensurate positions and the onset temperature T_p of the superlattice structure coincides with the low-temperature metal-toinsulator transition point. Pr_1-xCa_xMnO₃ compounds are also studied at the stoichiometric concentration of x = 0.25. We observed diffuse satellite peaks indicating the existence of new charge-ordered state at this concentration.

Original language	English
Pages (from-to)	433-435
Number of pages	3
Journal	Physica B: Condensed Matter
Volume	241-243
DOIs	https://doi.org/10.1016/S0921-4526(97)00611-X
Publication status	Published - 1997
Externally published	Yes

Keywords

(LaSr)MnO
Charge order
Jahn-Teller distortion
Metal-to-insulator transition

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1016/S0921-4526(97)00611-X

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title = "Charge ordering in low-doping rate A1-xBxMnO3 (A: La, Pr; B: Sr, Ca)",

abstract = "We have found charge ordering in perovskite-type manganese oxides at low-carrier-doping region in neutron diffraction experiments. In La1-xSrxMnO3 (x = 0.1 and 0.15), we observed superlattice reflections at commensurate positions and the onset temperature Tp of the superlattice structure coincides with the low-temperature metal-toinsulator transition point. Pr1-xCaxMnO3 compounds are also studied at the stoichiometric concentration of x = 0.25. We observed diffuse satellite peaks indicating the existence of new charge-ordered state at this concentration.",

keywords = "(LaSr)MnO, Charge order, Jahn-Teller distortion, Metal-to-insulator transition",

author = "T. Inami and O. Hino and S. Nohdo and R. Kanao and N. Ikeda and Y. Yamada and S. Katano",

year = "1997",

doi = "10.1016/S0921-4526(97)00611-X",

language = "English",

volume = "241-243",

pages = "433--435",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

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}

TY - JOUR

T1 - Charge ordering in low-doping rate A1-xBxMnO3 (A

T2 - La, Pr; B: Sr, Ca)

AU - Inami, T.

AU - Hino, O.

AU - Nohdo, S.

AU - Kanao, R.

AU - Ikeda, N.

AU - Yamada, Y.

AU - Katano, S.

PY - 1997

Y1 - 1997

N2 - We have found charge ordering in perovskite-type manganese oxides at low-carrier-doping region in neutron diffraction experiments. In La1-xSrxMnO3 (x = 0.1 and 0.15), we observed superlattice reflections at commensurate positions and the onset temperature Tp of the superlattice structure coincides with the low-temperature metal-toinsulator transition point. Pr1-xCaxMnO3 compounds are also studied at the stoichiometric concentration of x = 0.25. We observed diffuse satellite peaks indicating the existence of new charge-ordered state at this concentration.

AB - We have found charge ordering in perovskite-type manganese oxides at low-carrier-doping region in neutron diffraction experiments. In La1-xSrxMnO3 (x = 0.1 and 0.15), we observed superlattice reflections at commensurate positions and the onset temperature Tp of the superlattice structure coincides with the low-temperature metal-toinsulator transition point. Pr1-xCaxMnO3 compounds are also studied at the stoichiometric concentration of x = 0.25. We observed diffuse satellite peaks indicating the existence of new charge-ordered state at this concentration.

KW - (LaSr)MnO

KW - Charge order

KW - Jahn-Teller distortion

KW - Metal-to-insulator transition

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JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

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