Theory of Cu 2p X-ray emission spectroscopy in CuO and La 2CuO4

Satoshi Tanaka, Kozo Okada, Akio Kotani

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Soft X-ray emission spectroscopy due to the Cu 3d → 2p electronic transition (Cu 2p-XES) is one of the powerful tools for investigating the local nature of the Cu 3d state in high-Tc superconductors. We theoretically investigate Cu 2p-XES for CuO and La2 CuO4 based upon the impurity Anderson model and the formula of the second order optical process. Justification for this model is given by that available experimental data of Cu 2p-XES, 2p-XPS, 2p-XAS and 3d-XPS are satisfactorily reproduced in a unified way. According to Cu 2p-XES experiments so far made, a shoulder structure appears on the high energy side of the main peak in La 2CuO4 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 a1g symmetry states in La2Cuo4 than in CuO due to the existence of the apical oxygen.

Original languageEnglish
Pages (from-to)3893-3903
Number of pages11
JournalJournal of the Physical Society of Japan
Volume60
Issue number11
Publication statusPublished - Nov 1991
Externally publishedYes

Fingerprint

shoulders
spectroscopy
x rays
impurities
symmetry
oxygen
electronics
energy

Keywords

  • CuO
  • High-Ta superconductors
  • LaCuO, high energy specL troscopy
  • X-ray emission

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Theory of Cu 2p X-ray emission spectroscopy in CuO and La 2CuO4. / Tanaka, Satoshi; Okada, Kozo; Kotani, Akio.

In: Journal of the Physical Society of Japan, Vol. 60, No. 11, 11.1991, p. 3893-3903.

Research output: Contribution to journalArticle

Tanaka, Satoshi ; Okada, Kozo ; Kotani, Akio. / Theory of Cu 2p X-ray emission spectroscopy in CuO and La 2CuO4. In: Journal of the Physical Society of Japan. 1991 ; Vol. 60, No. 11. pp. 3893-3903.
@article{9635cb13b67b459a96d5c034d17251bc,
title = "Theory of Cu 2p X-ray emission spectroscopy in CuO and La 2CuO4",
abstract = "Soft X-ray emission spectroscopy due to the Cu 3d → 2p electronic transition (Cu 2p-XES) is one of the powerful tools for investigating the local nature of the Cu 3d state in high-Tc superconductors. We theoretically investigate Cu 2p-XES for CuO and La2 CuO4 based upon the impurity Anderson model and the formula of the second order optical process. Justification for this model is given by that available experimental data of Cu 2p-XES, 2p-XPS, 2p-XAS and 3d-XPS are satisfactorily reproduced in a unified way. According to Cu 2p-XES experiments so far made, a shoulder structure appears on the high energy side of the main peak in La 2CuO4 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 a1g symmetry states in La2Cuo4 than in CuO due to the existence of the apical oxygen.",
keywords = "CuO, High-Ta superconductors, LaCuO, high energy specL troscopy, X-ray emission",
author = "Satoshi Tanaka and Kozo Okada and Akio Kotani",
year = "1991",
month = "11",
language = "English",
volume = "60",
pages = "3893--3903",
journal = "Journal of the Physical Society of Japan",
issn = "0031-9015",
publisher = "Physical Society of Japan",
number = "11",

}

TY - JOUR

T1 - Theory of Cu 2p X-ray emission spectroscopy in CuO and La 2CuO4

AU - Tanaka, Satoshi

AU - Okada, Kozo

AU - Kotani, Akio

PY - 1991/11

Y1 - 1991/11

N2 - Soft X-ray emission spectroscopy due to the Cu 3d → 2p electronic transition (Cu 2p-XES) is one of the powerful tools for investigating the local nature of the Cu 3d state in high-Tc superconductors. We theoretically investigate Cu 2p-XES for CuO and La2 CuO4 based upon the impurity Anderson model and the formula of the second order optical process. Justification for this model is given by that available experimental data of Cu 2p-XES, 2p-XPS, 2p-XAS and 3d-XPS are satisfactorily reproduced in a unified way. According to Cu 2p-XES experiments so far made, a shoulder structure appears on the high energy side of the main peak in La 2CuO4 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 a1g symmetry states in La2Cuo4 than in CuO due to the existence of the apical oxygen.

AB - Soft X-ray emission spectroscopy due to the Cu 3d → 2p electronic transition (Cu 2p-XES) is one of the powerful tools for investigating the local nature of the Cu 3d state in high-Tc superconductors. We theoretically investigate Cu 2p-XES for CuO and La2 CuO4 based upon the impurity Anderson model and the formula of the second order optical process. Justification for this model is given by that available experimental data of Cu 2p-XES, 2p-XPS, 2p-XAS and 3d-XPS are satisfactorily reproduced in a unified way. According to Cu 2p-XES experiments so far made, a shoulder structure appears on the high energy side of the main peak in La 2CuO4 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 a1g symmetry states in La2Cuo4 than in CuO due to the existence of the apical oxygen.

KW - CuO

KW - High-Ta superconductors

KW - LaCuO, high energy specL troscopy

KW - X-ray emission

UR - http://www.scopus.com/inward/record.url?scp=0000492914&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0000492914&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0000492914

VL - 60

SP - 3893

EP - 3903

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

SN - 0031-9015

IS - 11

ER -