Crystallographic features of a low-temperature- tetragonal structure in La2-xBaxCuO4

Y. Inoue*, Y. Wakabayashi, K. Ito, Y. Koyama

*この研究の対応する著者

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Crystallographic features of both a low-temperature-tetragonal (LTT) structure and a related structural transition in La1.875Ba0.125CuO4 have been examined by means of electron diffraction in a temperature range between room temperature and about 15 K. There exist two types of diffraction spots in electron diffraction patterns taken from La1.875Ba0.125CuO4 at 16 K. One is a 100-type forbidden spot which shows that the oxide has the LTT structure. The other is a superlattice spot located at h 2 k 20, the X point. From a calculated band structure [Krakauer et al., Phys. Rev. B47, 1002(1993)], it seems that the superlattice spot is an indication of the appearance of a charge density wave in the LTT structure.

本文言語English
ページ(範囲)835-836
ページ数2
ジャーナルPhysica C: Superconductivity and its applications
235-240
PART 2
DOI
出版ステータスPublished - 1994 12月

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
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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