Magnetic properties of praseodymium ions in Na2O-Pr2O3-SiO2 glasses

A. Mekki; Kh A. Ziq; D. Holland; C. F. McConville

doi:10.1016/S0304-8853(02)00568-1

Magnetic properties of praseodymium ions in Na₂O-Pr₂O₃-SiO₂ glasses

A. Mekki^*, Kh A. Ziq, D. Holland, C. F. McConville

^*Corresponding author for this work

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

72 Scopus citations

Abstract

Sodium praseodymium silicate glasses of nominal composition 0.3Na₂O xPr₂O₃ (0.7-x)SiO₂, where 0 ≤ x ≤ 0.10, have been studied by magnetisation and X-ray photoelectron spectroscopy (XPS). The magnetisation data fail to collapse to a single curve in the M versus H/T representation for all values of x and the spread increases with x, indicating an increase in the magnetic exchange interaction. The M versus H data acquired at different temperatures have been fitted with a Brillouin function by refining the number of Pr³⁺ ions in each glass sample. It was found that most of the Pr ions are in Pr³⁺ valence state and only a small fraction (≤ 5%) in the Pr⁴⁺ state. Analysis of the XPS line shape indicates only the presence of Pr³⁺ ions in these glasses.

Original language	English
Pages (from-to)	60-69
Number of pages	10
Journal	Journal of Magnetism and Magnetic Materials
Volume	260
Issue number	1-2
DOIs	https://doi.org/10.1016/S0304-8853(02)00568-1
State	Published - Mar 2003

Bibliographical note

Funding Information:
Two of the authors (A.M. and K.A.Z.) would like to acknowledge the support of King Fahd University of Petroleum and Minerals.

Keywords

Glass
Magnetisation
PrO
X-ray photoelectron spectroscopy

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/S0304-8853(02)00568-1

Cite this

@article{4447fa64eed548479ec240044711ffb3,

title = "Magnetic properties of praseodymium ions in Na2O-Pr2O3-SiO2 glasses",

abstract = "Sodium praseodymium silicate glasses of nominal composition 0.3Na2O xPr2O3 (0.7-x)SiO2, where 0 ≤ x ≤ 0.10, have been studied by magnetisation and X-ray photoelectron spectroscopy (XPS). The magnetisation data fail to collapse to a single curve in the M versus H/T representation for all values of x and the spread increases with x, indicating an increase in the magnetic exchange interaction. The M versus H data acquired at different temperatures have been fitted with a Brillouin function by refining the number of Pr3+ ions in each glass sample. It was found that most of the Pr ions are in Pr3+ valence state and only a small fraction (≤ 5\%) in the Pr4+ state. Analysis of the XPS line shape indicates only the presence of Pr3+ ions in these glasses.",

keywords = "Glass, Magnetisation, PrO, X-ray photoelectron spectroscopy",

author = "A. Mekki and Ziq, \{Kh A.\} and D. Holland and McConville, \{C. F.\}",

note = "Funding Information: Two of the authors (A.M. and K.A.Z.) would like to acknowledge the support of King Fahd University of Petroleum and Minerals.",

year = "2003",

month = mar,

doi = "10.1016/S0304-8853(02)00568-1",

language = "English",

volume = "260",

pages = "60--69",

journal = "Journal of Magnetism and Magnetic Materials",

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TY - JOUR

T1 - Magnetic properties of praseodymium ions in Na2O-Pr2O3-SiO2 glasses

AU - Mekki, A.

AU - Ziq, Kh A.

AU - Holland, D.

AU - McConville, C. F.

N1 - Funding Information: Two of the authors (A.M. and K.A.Z.) would like to acknowledge the support of King Fahd University of Petroleum and Minerals.

PY - 2003/3

Y1 - 2003/3

N2 - Sodium praseodymium silicate glasses of nominal composition 0.3Na2O xPr2O3 (0.7-x)SiO2, where 0 ≤ x ≤ 0.10, have been studied by magnetisation and X-ray photoelectron spectroscopy (XPS). The magnetisation data fail to collapse to a single curve in the M versus H/T representation for all values of x and the spread increases with x, indicating an increase in the magnetic exchange interaction. The M versus H data acquired at different temperatures have been fitted with a Brillouin function by refining the number of Pr3+ ions in each glass sample. It was found that most of the Pr ions are in Pr3+ valence state and only a small fraction (≤ 5%) in the Pr4+ state. Analysis of the XPS line shape indicates only the presence of Pr3+ ions in these glasses.

AB - Sodium praseodymium silicate glasses of nominal composition 0.3Na2O xPr2O3 (0.7-x)SiO2, where 0 ≤ x ≤ 0.10, have been studied by magnetisation and X-ray photoelectron spectroscopy (XPS). The magnetisation data fail to collapse to a single curve in the M versus H/T representation for all values of x and the spread increases with x, indicating an increase in the magnetic exchange interaction. The M versus H data acquired at different temperatures have been fitted with a Brillouin function by refining the number of Pr3+ ions in each glass sample. It was found that most of the Pr ions are in Pr3+ valence state and only a small fraction (≤ 5%) in the Pr4+ state. Analysis of the XPS line shape indicates only the presence of Pr3+ ions in these glasses.

KW - Glass

KW - Magnetisation

KW - PrO

KW - X-ray photoelectron spectroscopy

UR - https://www.scopus.com/pages/publications/0037338194

U2 - 10.1016/S0304-8853(02)00568-1

DO - 10.1016/S0304-8853(02)00568-1

M3 - Article

AN - SCOPUS:0037338194

SN - 0304-8853

VL - 260

SP - 60

EP - 69

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 1-2

ER -