Possible presence of a charge-orbital density wave in layered manganites Nd1-xCa1+xMnO4

T. Nagai; T. Kimura; A. Yamazaki; Y. Tomioka; K. Kimoto; Y. Tokura; Y. Matsui

doi:10.1103/PhysRevB.68.092405

Possible presence of a charge-orbital density wave in layered manganites Nd_1-xCa_1+xMnO₄

T. Nagai, T. Kimura, A. Yamazaki, Y. Tomioka, K. Kimoto, Y. Tokura, Y. Matsui

School of Creative Science and Engineering

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

19 Citations (Scopus)

Abstract

We have studied the structural modifications related to the charge-orbital ordering for single-layered manganites Nd_1-xCa_1+xMnO₄ with both commensurate and incommensurate doping levels (0.55≦x≦0.75). High-resolution electron microscopy (HREM) revealed transverse and sinusoidal structural modulations with a doping-level-dependent period of d_s=a/(1-x) in the charge-orbital ordered phases. We discuss the possibility of an orbital-density wave as well as a charge-density wave based on the HREM observation of the single-layered manganites.

Original language	English
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	68
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.68.092405
Publication status	Published - 2003 Jan 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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T1 - Possible presence of a charge-orbital density wave in layered manganites Nd1-xCa1+xMnO4

AU - Nagai, T.

AU - Kimura, T.

AU - Yamazaki, A.

AU - Tomioka, Y.

AU - Kimoto, K.

AU - Tokura, Y.

AU - Matsui, Y.

PY - 2003/1/1

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N2 - We have studied the structural modifications related to the charge-orbital ordering for single-layered manganites Nd1-xCa1+xMnO4 with both commensurate and incommensurate doping levels (0.55≦x≦0.75). High-resolution electron microscopy (HREM) revealed transverse and sinusoidal structural modulations with a doping-level-dependent period of ds=a/(1-x) in the charge-orbital ordered phases. We discuss the possibility of an orbital-density wave as well as a charge-density wave based on the HREM observation of the single-layered manganites.

AB - We have studied the structural modifications related to the charge-orbital ordering for single-layered manganites Nd1-xCa1+xMnO4 with both commensurate and incommensurate doping levels (0.55≦x≦0.75). High-resolution electron microscopy (HREM) revealed transverse and sinusoidal structural modulations with a doping-level-dependent period of ds=a/(1-x) in the charge-orbital ordered phases. We discuss the possibility of an orbital-density wave as well as a charge-density wave based on the HREM observation of the single-layered manganites.

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Possible presence of a charge-orbital density wave in layered manganites Nd_1-xCa_1+xMnO₄

Abstract

ASJC Scopus subject areas

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