Theory of Cu 2p X-ray emission spectroscopy in high-Tc superconductors

Satoshi Tanaka; Kozo Okada; Akio Kotani

doi:10.1016/0921-4534(91)90871-U

Theory of Cu 2p X-ray emission spectroscopy in high-T_c superconductors

Satoshi Tanaka, Kozo Okada, Akio Kotani

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

4 Citations (Scopus)

Abstract

We investigate theoretically Cu 2p-XES for La₂CuO₄ and CuO on the basis of the formula of the second order optical process with the impurity Anderson model. According to Cu 2p-XES experiments so far made, a shoulder structure appears on the high energy side of the main peak in La₂CuO₄ and also in high-T_c superconductors, but it is absent in CuO. It is shown that the appearance of the shoulder structure originates from the stronger hybridization for the a_lg symmetry states in La₂CuO₄ than in CuO due to the existence of the apical oxygen.

Original language	English
Pages (from-to)	1489-1490
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	185-189
Issue number	PART 3
DOIs	https://doi.org/10.1016/0921-4534(91)90871-U
Publication status	Published - Dec 1 1991
Externally published	Yes

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(91)90871-U

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title = "Theory of Cu 2p X-ray emission spectroscopy in high-Tc superconductors",

abstract = "We investigate theoretically Cu 2p-XES for La2CuO4 and CuO on the basis of the formula of the second order optical process with the impurity Anderson model. According to Cu 2p-XES experiments so far made, a shoulder structure appears on the high energy side of the main peak in La2CuO4 and also in high-Tc superconductors, but it is absent in CuO. It is shown that the appearance of the shoulder structure originates from the stronger hybridization for the alg symmetry states in La2CuO4 than in CuO due to the existence of the apical oxygen.",

author = "Satoshi Tanaka and Kozo Okada and Akio Kotani",

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T1 - Theory of Cu 2p X-ray emission spectroscopy in high-Tc superconductors

AU - Tanaka, Satoshi

AU - Okada, Kozo

AU - Kotani, Akio

PY - 1991/12/1

Y1 - 1991/12/1

N2 - We investigate theoretically Cu 2p-XES for La2CuO4 and CuO on the basis of the formula of the second order optical process with the impurity Anderson model. According to Cu 2p-XES experiments so far made, a shoulder structure appears on the high energy side of the main peak in La2CuO4 and also in high-Tc superconductors, but it is absent in CuO. It is shown that the appearance of the shoulder structure originates from the stronger hybridization for the alg symmetry states in La2CuO4 than in CuO due to the existence of the apical oxygen.

AB - We investigate theoretically Cu 2p-XES for La2CuO4 and CuO on the basis of the formula of the second order optical process with the impurity Anderson model. According to Cu 2p-XES experiments so far made, a shoulder structure appears on the high energy side of the main peak in La2CuO4 and also in high-Tc superconductors, but it is absent in CuO. It is shown that the appearance of the shoulder structure originates from the stronger hybridization for the alg symmetry states in La2CuO4 than in CuO due to the existence of the apical oxygen.

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JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

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ER -

Theory of Cu 2p X-ray emission spectroscopy in high-T_c superconductors

Abstract

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