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

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 - Jan 1 1997

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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

Cite this

Inami, T., Hino, O., Nohdo, S., Kanao, R., Ikeda, N., Yamada, Y., & Katano, S. (1997). Charge ordering in low-doping rate A_1-xB_xMnO₃ (A: La, Pr; B: Sr, Ca). Physica B: Condensed Matter, 241-243, 433-435. https://doi.org/10.1016/S0921-4526(97)00611-X

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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",

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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 - 1997/1/1

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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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10.1016/S0921-4526(97)00611-X