Stability of electronic states in the layered perovskite Sr2-xNdxMnO4

Wataru Norimatsu; Yasumasa Koyama

doi:10.1016/j.physc.2007.05.016

Stability of electronic states in the layered perovskite Sr_2-xNd_xMnO₄

Wataru Norimatsu^*, Yasumasa Koyama

^*Corresponding author for this work

School of Fundamental Science and Engineering

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

8 Citations (Scopus)

Abstract

The electronic system in the layered perovskite Sr_2-xNd_xMnO₄ is characterized as a two-dimensional e_g-electron system. In order to understand the stability of electronic states in the Nd-content region of 0 ≤ x ≤ 0.50, the crystallographic features of this manganite have been investigated by transmission electron microscopy. The increase in the Nd-content led to the orbital ordered state in 0.10 ≤ x ≤ 0.25 and the charge and orbital ordered state in 0.25 ≤ x < 0.45. In particular, it was found that the orbital ordering accompanied the C-type antiferromagnetic ordering at lower temperatures, and that the transition to the charge and orbital ordered states was strongly suppressed in x > 0.35.

Original language	English
Pages (from-to)	115-119
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	463-465
Issue number	SUPPL.
DOIs	https://doi.org/10.1016/j.physc.2007.05.016
Publication status	Published - 2007 Oct 1

Keywords

Charge and orbital ordering
Manganite
Orbital ordering
Structural phase transition
Transmission electron microscopy

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/j.physc.2007.05.016

Cite this

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title = "Stability of electronic states in the layered perovskite Sr2-xNdxMnO4",

abstract = "The electronic system in the layered perovskite Sr2-xNdxMnO4 is characterized as a two-dimensional eg-electron system. In order to understand the stability of electronic states in the Nd-content region of 0 ≤ x ≤ 0.50, the crystallographic features of this manganite have been investigated by transmission electron microscopy. The increase in the Nd-content led to the orbital ordered state in 0.10 ≤ x ≤ 0.25 and the charge and orbital ordered state in 0.25 ≤ x < 0.45. In particular, it was found that the orbital ordering accompanied the C-type antiferromagnetic ordering at lower temperatures, and that the transition to the charge and orbital ordered states was strongly suppressed in x > 0.35.",

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author = "Wataru Norimatsu and Yasumasa Koyama",

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N2 - The electronic system in the layered perovskite Sr2-xNdxMnO4 is characterized as a two-dimensional eg-electron system. In order to understand the stability of electronic states in the Nd-content region of 0 ≤ x ≤ 0.50, the crystallographic features of this manganite have been investigated by transmission electron microscopy. The increase in the Nd-content led to the orbital ordered state in 0.10 ≤ x ≤ 0.25 and the charge and orbital ordered state in 0.25 ≤ x < 0.45. In particular, it was found that the orbital ordering accompanied the C-type antiferromagnetic ordering at lower temperatures, and that the transition to the charge and orbital ordered states was strongly suppressed in x > 0.35.

AB - The electronic system in the layered perovskite Sr2-xNdxMnO4 is characterized as a two-dimensional eg-electron system. In order to understand the stability of electronic states in the Nd-content region of 0 ≤ x ≤ 0.50, the crystallographic features of this manganite have been investigated by transmission electron microscopy. The increase in the Nd-content led to the orbital ordered state in 0.10 ≤ x ≤ 0.25 and the charge and orbital ordered state in 0.25 ≤ x < 0.45. In particular, it was found that the orbital ordering accompanied the C-type antiferromagnetic ordering at lower temperatures, and that the transition to the charge and orbital ordered states was strongly suppressed in x > 0.35.

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