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

Y. Inoue; Y. Wakabayashi; K. Ito; Y. Koyama

doi:10.1016/0921-4534(94)91642-X

Crystallographic features of a low-temperature- tetragonal structure in La_2-xBa_xCuO₄

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

^*Corresponding author for this work

School of Fundamental Science and Engineering

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

3 Citations (Scopus)

Abstract

Crystallographic features of both a low-temperature-tetragonal (LTT) structure and a related structural transition in La_1.875Ba_0.125CuO₄ 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 La_1.875Ba_0.125CuO₄ 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.

Original language	English
Pages (from-to)	835-836
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	235-240
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4534(94)91642-X
Publication status	Published - 1994 Dec

ASJC Scopus subject areas

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

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10.1016/0921-4534(94)91642-X

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title = "Crystallographic features of a low-temperature- tetragonal structure in La2-xBaxCuO4",

abstract = "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.",

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T1 - Crystallographic features of a low-temperature- tetragonal structure in La2-xBaxCuO4

AU - Inoue, Y.

AU - Wakabayashi, Y.

AU - Ito, K.

AU - Koyama, Y.

PY - 1994/12

Y1 - 1994/12

N2 - 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.

AB - 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.

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Crystallographic features of a low-temperature- tetragonal structure in La_2-xBa_xCuO₄

Abstract

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