X-ray photoemission study of the effect of γ-irradiation on fluorinated (Tl0.5Pb0.5)Sr1.6Ba0.4Ca2Cu3Oy high-TC superconductor

N. M. Hamdan; M. Faiz

doi:10.1016/S0368-2048(00)00283-8

X-ray photoemission study of the effect of γ-irradiation on fluorinated (Tl_0.5Pb_0.5)Sr_1.6Ba_0.4Ca₂Cu₃O_y high-T_C superconductor

N. M. Hamdan^*, M. Faiz

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

X-ray photoemission spectroscopy (XPS) has been used to investigate the effect of γ-irradiation on F1s, Cu2p_3/2 and Sr3p_3/2 binding energies of fluorinated (Tl_0.5Pb_0.5)Sr_1.6Ba_0.4Ca₂Cu₃O_y superconductor. The F1s peak of this material started to disappear as γ-dose was increased, indicating that γ-irradiation creates vacancies in F and hence O sites (as F partially replaces O). The Cu2p_3/2 satellite, that is typical of Cu²⁺, disappears and a low energy shoulder, that is a signature of Cu¹⁺, develops as γ-dose increases. Also the binding energy of Cu2p_3/2 was decreased with increasing γ-irradiation, indicating a decrease in the average Cu valency. On the other hand, the binding energy of Sr3p_3/2 increases with increasing γ-dose up to 30 Mrad. This also indicates a decrease in the hole concentration in the Cu-O planes of the fluorinated Tl-1223 because of removal of F/O from the Cu-O planes. As the irradiation dose is increased to 50 Mrad, the binding energy of Sr3p_3/2 decreases. This may be due to additional F/O removal from the Sr/Ba-O planes.

Original language	English
Pages (from-to)	291-294
Number of pages	4
Journal	Journal of Electron Spectroscopy and Related Phenomena
Volume	114-116
DOIs	https://doi.org/10.1016/S0368-2048(00)00283-8
State	Published - Mar 2001

Bibliographical note

Funding Information:
The authors would like to acknowledge the support provided by the Physics Department, King Fahd University of Petroleum and Minerals for this study. Special thanks are due to A. Bulut and S. Marzoug for their assistance in sample irradiation.

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Radiation
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Spectroscopy
Physical and Theoretical Chemistry

Access to Document

10.1016/S0368-2048(00)00283-8

Cite this

@article{6da1fbed26634b2490d88576316ef9dc,

title = "X-ray photoemission study of the effect of γ-irradiation on fluorinated (Tl0.5Pb0.5)Sr1.6Ba0.4Ca2Cu3Oy high-TC superconductor",

abstract = "X-ray photoemission spectroscopy (XPS) has been used to investigate the effect of γ-irradiation on F1s, Cu2p3/2 and Sr3p3/2 binding energies of fluorinated (Tl0.5Pb0.5)Sr1.6Ba0.4Ca2Cu3Oy superconductor. The F1s peak of this material started to disappear as γ-dose was increased, indicating that γ-irradiation creates vacancies in F and hence O sites (as F partially replaces O). The Cu2p3/2 satellite, that is typical of Cu2+, disappears and a low energy shoulder, that is a signature of Cu1+, develops as γ-dose increases. Also the binding energy of Cu2p3/2 was decreased with increasing γ-irradiation, indicating a decrease in the average Cu valency. On the other hand, the binding energy of Sr3p3/2 increases with increasing γ-dose up to 30 Mrad. This also indicates a decrease in the hole concentration in the Cu-O planes of the fluorinated Tl-1223 because of removal of F/O from the Cu-O planes. As the irradiation dose is increased to 50 Mrad, the binding energy of Sr3p3/2 decreases. This may be due to additional F/O removal from the Sr/Ba-O planes.",

author = "Hamdan, \{N. M.\} and M. Faiz",

note = "Funding Information: The authors would like to acknowledge the support provided by the Physics Department, King Fahd University of Petroleum and Minerals for this study. Special thanks are due to A. Bulut and S. Marzoug for their assistance in sample irradiation.",

year = "2001",

month = mar,

doi = "10.1016/S0368-2048(00)00283-8",

language = "English",

volume = "114-116",

pages = "291--294",

journal = "Journal of Electron Spectroscopy and Related Phenomena",

issn = "0368-2048",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - X-ray photoemission study of the effect of γ-irradiation on fluorinated (Tl0.5Pb0.5)Sr1.6Ba0.4Ca2Cu3Oy high-TC superconductor

AU - Hamdan, N. M.

AU - Faiz, M.

N1 - Funding Information: The authors would like to acknowledge the support provided by the Physics Department, King Fahd University of Petroleum and Minerals for this study. Special thanks are due to A. Bulut and S. Marzoug for their assistance in sample irradiation.

PY - 2001/3

Y1 - 2001/3

N2 - X-ray photoemission spectroscopy (XPS) has been used to investigate the effect of γ-irradiation on F1s, Cu2p3/2 and Sr3p3/2 binding energies of fluorinated (Tl0.5Pb0.5)Sr1.6Ba0.4Ca2Cu3Oy superconductor. The F1s peak of this material started to disappear as γ-dose was increased, indicating that γ-irradiation creates vacancies in F and hence O sites (as F partially replaces O). The Cu2p3/2 satellite, that is typical of Cu2+, disappears and a low energy shoulder, that is a signature of Cu1+, develops as γ-dose increases. Also the binding energy of Cu2p3/2 was decreased with increasing γ-irradiation, indicating a decrease in the average Cu valency. On the other hand, the binding energy of Sr3p3/2 increases with increasing γ-dose up to 30 Mrad. This also indicates a decrease in the hole concentration in the Cu-O planes of the fluorinated Tl-1223 because of removal of F/O from the Cu-O planes. As the irradiation dose is increased to 50 Mrad, the binding energy of Sr3p3/2 decreases. This may be due to additional F/O removal from the Sr/Ba-O planes.

AB - X-ray photoemission spectroscopy (XPS) has been used to investigate the effect of γ-irradiation on F1s, Cu2p3/2 and Sr3p3/2 binding energies of fluorinated (Tl0.5Pb0.5)Sr1.6Ba0.4Ca2Cu3Oy superconductor. The F1s peak of this material started to disappear as γ-dose was increased, indicating that γ-irradiation creates vacancies in F and hence O sites (as F partially replaces O). The Cu2p3/2 satellite, that is typical of Cu2+, disappears and a low energy shoulder, that is a signature of Cu1+, develops as γ-dose increases. Also the binding energy of Cu2p3/2 was decreased with increasing γ-irradiation, indicating a decrease in the average Cu valency. On the other hand, the binding energy of Sr3p3/2 increases with increasing γ-dose up to 30 Mrad. This also indicates a decrease in the hole concentration in the Cu-O planes of the fluorinated Tl-1223 because of removal of F/O from the Cu-O planes. As the irradiation dose is increased to 50 Mrad, the binding energy of Sr3p3/2 decreases. This may be due to additional F/O removal from the Sr/Ba-O planes.

UR - https://www.scopus.com/pages/publications/0035277330

U2 - 10.1016/S0368-2048(00)00283-8

DO - 10.1016/S0368-2048(00)00283-8

M3 - Conference article

AN - SCOPUS:0035277330

SN - 0368-2048

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JO - Journal of Electron Spectroscopy and Related Phenomena

JF - Journal of Electron Spectroscopy and Related Phenomena

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