Atomic image of a CuO2 plane in the STM image of a Bi2Sr2CaCu2O8+δ cleaved surface

S. Sugita; T. Watanabe; A. Matsuda

doi:10.1103/PhysRevB.62.8715

Atomic image of a CuO₂ plane in the STM image of a Bi₂Sr₂CaCu₂O_8+δ cleaved surface

S. Sugita^*, T. Watanabe, A. Matsuda

^*Corresponding author for this work

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

17 Citations (Scopus)

Abstract

Clear atomic images of a Bi₂Sr₂CaCu₂O_8+δ (BSCCO) cleaved surface were obtained at room temperature by scanning tunneling microscopy (STM). The features of some observed images vary between two extreme cases, that is, the Bi-O plane image and the CuO₂ plane image. And we have succeeded in obtaining a clear STM image of a CuO₂ plane. From the CuO₂ plane image, we found that this plane had two superstructures, one along the a axis and the other along the b axis. The periodicity of the superstructure along the b axis is (4-5)b, the same as that in the Bi-O plane, and the periodicity along the a axis is 2a. To explain these superstructures, we propose a lattice distortion model for the CuO₂ plane of BSCCO.

Original language	English
Pages (from-to)	8715-8718
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	62
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.62.8715
Publication status	Published - 2000 Oct 1
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.62.8715

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title = "Atomic image of a CuO2 plane in the STM image of a Bi2Sr2CaCu2O8+δ cleaved surface",

abstract = "Clear atomic images of a Bi2Sr2CaCu2O8+δ (BSCCO) cleaved surface were obtained at room temperature by scanning tunneling microscopy (STM). The features of some observed images vary between two extreme cases, that is, the Bi-O plane image and the CuO2 plane image. And we have succeeded in obtaining a clear STM image of a CuO2 plane. From the CuO2 plane image, we found that this plane had two superstructures, one along the a axis and the other along the b axis. The periodicity of the superstructure along the b axis is (4-5)b, the same as that in the Bi-O plane, and the periodicity along the a axis is 2a. To explain these superstructures, we propose a lattice distortion model for the CuO2 plane of BSCCO.",

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AU - Sugita, S.

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AU - Matsuda, A.

PY - 2000/10/1

Y1 - 2000/10/1

N2 - Clear atomic images of a Bi2Sr2CaCu2O8+δ (BSCCO) cleaved surface were obtained at room temperature by scanning tunneling microscopy (STM). The features of some observed images vary between two extreme cases, that is, the Bi-O plane image and the CuO2 plane image. And we have succeeded in obtaining a clear STM image of a CuO2 plane. From the CuO2 plane image, we found that this plane had two superstructures, one along the a axis and the other along the b axis. The periodicity of the superstructure along the b axis is (4-5)b, the same as that in the Bi-O plane, and the periodicity along the a axis is 2a. To explain these superstructures, we propose a lattice distortion model for the CuO2 plane of BSCCO.

AB - Clear atomic images of a Bi2Sr2CaCu2O8+δ (BSCCO) cleaved surface were obtained at room temperature by scanning tunneling microscopy (STM). The features of some observed images vary between two extreme cases, that is, the Bi-O plane image and the CuO2 plane image. And we have succeeded in obtaining a clear STM image of a CuO2 plane. From the CuO2 plane image, we found that this plane had two superstructures, one along the a axis and the other along the b axis. The periodicity of the superstructure along the b axis is (4-5)b, the same as that in the Bi-O plane, and the periodicity along the a axis is 2a. To explain these superstructures, we propose a lattice distortion model for the CuO2 plane of BSCCO.

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Atomic image of a CuO₂ plane in the STM image of a Bi₂Sr₂CaCu₂O_8+δ cleaved surface

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