Characteristic features of low-temperature structural phase transitions in La2-xSrxCuO4

Y. Inoue*, Y. Horibe, Y. Koyama

*この研究の対応する著者

研究成果: Article査読

5 被引用数 (Scopus)

抄録

Features of low-temperature structural phase transitions in La2-xSrxCuO4 with x=0.115 and 0.15 have been examined by transmission electron microscopy. There are 100-type forbidden spots due to the Pccn/LTT phase as well as fundamental spots due to the LTO phase in the electron-diffraction patterns of La2-xSrxCuO4 with x=0.115 and 0.15 at 12 K. As for 100-type forbidden dark field images at 12 K, a bright-line contrast due to the Pccn/LTT phase exists only along the twin boundary in the LTO phase for x=0.15. In the case of x=0.115, a bright-spot contrast due to the Pccn/LTT phase also appears partially inside the LTO domains, in addition to the bright-line contrast along the twin boundary. That is, the low-temperature transition in X=0.115 is characterized by the appearance of the Pccn/LTT phase with the spotty shape inside the LTO domain.

本文言語English
ページ(範囲)361-366
ページ数6
ジャーナルJournal of Superconductivity
10
4
DOI
出版ステータスPublished - 1997 8

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 物理学および天文学(その他)

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「Characteristic features of low-temperature structural phase transitions in La<sub>2</sub>-<sub>x</sub>Sr<sub>x</sub>CuO<sub>4</sub>」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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