X-ray absorption study on PbBaSrYCu3O7+Δ and PbBaSr(Y,Ca)Cu3Cu3O7+Δ

Hirotaka Yamaguchi, Hiroyukio Yanagi, Ayako Yamamoto, Yasuhiko Shono

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

X-ray absorption fine structure on the Cu K and the Pb L3-edges of PbBaSrY1-xCaxCu3O7+Δ has been measured. The Cu K-near-edge spectra evidence the existence of Cu1+ comprised in O-CuO linear chains in the oxygendeficient phase with Δ=0. The Cu K-edge position shifts to higher energy retaining the Cu1+ feature by substitution of Y3+ with Ca2+ for in the oxygen-deficient phase, indicating that holes are supplied to the CuC>2 basal planes of the pyramids. The Pb valence is found to be mixed states of 2+ and 4+ in the oxygen-rich phase with Δ>1 and the average Pb valence is estimated as 3.3+.

Original languageEnglish
Pages (from-to)191-196
Number of pages6
JournalFerroelectrics
Volume128
Issue number1
DOIs
Publication statusPublished - 1992
Externally publishedYes

Fingerprint

X ray absorption
Oxygen
valence
x rays
Substitution reactions
oxygen
retaining
pyramids
fine structure
substitutes
shift
energy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

X-ray absorption study on PbBaSrYCu3O7+Δ and PbBaSr(Y,Ca)Cu3Cu3O7+Δ. / Yamaguchi, Hirotaka; Yanagi, Hiroyukio; Yamamoto, Ayako; Shono, Yasuhiko.

In: Ferroelectrics, Vol. 128, No. 1, 1992, p. 191-196.

Research output: Contribution to journalArticle

Yamaguchi, Hirotaka ; Yanagi, Hiroyukio ; Yamamoto, Ayako ; Shono, Yasuhiko. / X-ray absorption study on PbBaSrYCu3O7+Δ and PbBaSr(Y,Ca)Cu3Cu3O7+Δ. In: Ferroelectrics. 1992 ; Vol. 128, No. 1. pp. 191-196.
@article{8de7262f256549e989c26d79b4c70276,
title = "X-ray absorption study on PbBaSrYCu3O7+Δ and PbBaSr(Y,Ca)Cu3Cu3O7+Δ",
abstract = "X-ray absorption fine structure on the Cu K and the Pb L3-edges of PbBaSrY1-xCaxCu3O7+Δ has been measured. The Cu K-near-edge spectra evidence the existence of Cu1+ comprised in O-CuO linear chains in the oxygendeficient phase with Δ=0. The Cu K-edge position shifts to higher energy retaining the Cu1+ feature by substitution of Y3+ with Ca2+ for in the oxygen-deficient phase, indicating that holes are supplied to the CuC>2 basal planes of the pyramids. The Pb valence is found to be mixed states of 2+ and 4+ in the oxygen-rich phase with Δ>1 and the average Pb valence is estimated as 3.3+.",
author = "Hirotaka Yamaguchi and Hiroyukio Yanagi and Ayako Yamamoto and Yasuhiko Shono",
year = "1992",
doi = "10.1080/00150199208015090",
language = "English",
volume = "128",
pages = "191--196",
journal = "Ferroelectrics",
issn = "0015-0193",
publisher = "Taylor and Francis Ltd.",
number = "1",

}

TY - JOUR

T1 - X-ray absorption study on PbBaSrYCu3O7+Δ and PbBaSr(Y,Ca)Cu3Cu3O7+Δ

AU - Yamaguchi, Hirotaka

AU - Yanagi, Hiroyukio

AU - Yamamoto, Ayako

AU - Shono, Yasuhiko

PY - 1992

Y1 - 1992

N2 - X-ray absorption fine structure on the Cu K and the Pb L3-edges of PbBaSrY1-xCaxCu3O7+Δ has been measured. The Cu K-near-edge spectra evidence the existence of Cu1+ comprised in O-CuO linear chains in the oxygendeficient phase with Δ=0. The Cu K-edge position shifts to higher energy retaining the Cu1+ feature by substitution of Y3+ with Ca2+ for in the oxygen-deficient phase, indicating that holes are supplied to the CuC>2 basal planes of the pyramids. The Pb valence is found to be mixed states of 2+ and 4+ in the oxygen-rich phase with Δ>1 and the average Pb valence is estimated as 3.3+.

AB - X-ray absorption fine structure on the Cu K and the Pb L3-edges of PbBaSrY1-xCaxCu3O7+Δ has been measured. The Cu K-near-edge spectra evidence the existence of Cu1+ comprised in O-CuO linear chains in the oxygendeficient phase with Δ=0. The Cu K-edge position shifts to higher energy retaining the Cu1+ feature by substitution of Y3+ with Ca2+ for in the oxygen-deficient phase, indicating that holes are supplied to the CuC>2 basal planes of the pyramids. The Pb valence is found to be mixed states of 2+ and 4+ in the oxygen-rich phase with Δ>1 and the average Pb valence is estimated as 3.3+.

UR - http://www.scopus.com/inward/record.url?scp=0027040503&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027040503&partnerID=8YFLogxK

U2 - 10.1080/00150199208015090

DO - 10.1080/00150199208015090

M3 - Article

VL - 128

SP - 191

EP - 196

JO - Ferroelectrics

JF - Ferroelectrics

SN - 0015-0193

IS - 1

ER -