Crystallographic features of electronic states in the highly-correlated electronic system Sr1-xSmxMnO3 around x = 0.50

Misato Yamagata*, Yasuhide Inoue, Yasumasa Koyama

*この研究の対応する著者

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

The highly-correlated electron system Sr1-xSmxMnO3 (SSMO) with the simple-perovskite structure has been found to exhibit fascinating electronic states accompanying antiferromagnetic and ferromagnetic orderings. It was, in particular, reported that the electronic state for 0.46 ≤ x ≤ 0.54 was characterized by the coexistence state consisting of the A-type antiferromagnetic and ferromagnetic states. However, the features of the coexistence state in this Sm-content range have not been understood yet. We have thus investigated the crystallographic features of prepared SSMO samples with 0.46 ≤ x ≤ 0.55, mainly by transmission electron microscopy. As a result, all prepared SSMO samples were first confirmed to have the orthorhombic-Pnma structure at 300 K. When the temperature was lowered from 300 K, in the case of x=0.47, the disordered-Pnma state was found to be transformed into an orbital-modulated (OM) state accompanying an incommensurate modulation. The notable feature of the OM state is that the state becomes unstable with increasing Sm contents at 100 K. In other words, the OM state was never changed into the CE-type state with the orbital and charge modulations. In addition, no orbital-ordered state for the A-type antiferromagnetic ordering was also found for 0.46 ≤ x ≤ 0.55.

本文言語English
ホスト出版物のタイトルTHERMEC 2016
編集者Christof Sommitsch, Mihail Ionescu, Brajendra Mishra, Brajendra Mishra, Ernst Kozeschnik, T. Chandra
出版社Trans Tech Publications Ltd
ページ2158-2163
ページ数6
ISBN(印刷版)9783035711295
DOI
出版ステータスPublished - 2017
イベント9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016 - Graz, Austria
継続期間: 2016 5 292016 6 3

出版物シリーズ

名前Materials Science Forum
879
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Other

Other9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016
国/地域Austria
CityGraz
Period16/5/2916/6/3

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

フィンガープリント

「Crystallographic features of electronic states in the highly-correlated electronic system Sr<sub>1-x</sub>Sm<sub>x</sub>MnO<sub>3</sub> around x = 0.50」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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