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Title: Magnetic properties and homogeneous distribution of Gd{sup 3+} ions in gadolinium molybdenum borate glass with high Gd{sub 2}O{sub 3} content

Abstract

Highlights: ► The magnetic susceptibility of Gd{sub 2}O{sub 3}–MoO{sub 3}–B{sub 2}O{sub 3} glass was examined in T = 1.8–300 K. ► The effective magnetic moment was μ{sub eff} = 7.87 μ{sub B}. ► The Weiss constant was θ = −0.7 K. ► Gd{sup 3+} ions are distributed homogeneously as paramagnetic ions down to T = 1.8 K. -- Abstract: The magnetic susceptibility and specific heat of 21.25Gd{sub 2}O{sub 3}–63.75MoO{sub 3}–15B{sub 2}O{sub 3} (mol%) glass showing the crystallization of ferroelastic β′-Gd{sub 2}(MoO{sub 4}){sub 3} crystals are examined in the temperature range of T = 1.8–300 K to clarify magnetic and distribution states of Gd{sup 3+} ions. The magnetic susceptibility obeys the Curie–Weiss law, giving the effective magnetic moment of μ{sub eff} = 7.87 μ{sub B} and the Weiss constant of θ = −0.7 K. Any peak such as λ-type anomaly is not observed in the temperature dependence of specific heat in T = 1.8–5 K. It is suggested that Gd{sup 3+} ions in the glass with a high Gd{sub 2}O{sub 3} content of 21.25 mol% are distributed homogeneously and randomly as paramagnetic ions down to T = 1.8 K without inducing any strong magnetic interaction. The present study suggests that glassesmore » based on the MoO{sub 3}–B{sub 2}O{sub 3} system are good hosts for the homogeneous solubility of a large amount of rare-earth oxides.« less

Authors:
;  [1]; ;  [2];  [1]
  1. Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka 940-2188 (Japan)
  2. Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo 060-0810 (Japan)
Publication Date:
OSTI Identifier:
22215579
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 47; Journal Issue: 11; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CRYSTALLIZATION; CRYSTALS; GADOLINIUM; GADOLINIUM IONS; GADOLINIUM OXIDES; INTERACTIONS; MAGNETIC MOMENTS; MAGNETIC SUSCEPTIBILITY; MOLYBDATES; MOLYBDENUM; SPECIFIC HEAT; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE

Citation Formats

Suzuki, F., Honma, T., Doi, Y., Hinatsu, Y., and Komatsu, T., E-mail: komatsu@mst.nagaokaut.ac.jp. Magnetic properties and homogeneous distribution of Gd{sup 3+} ions in gadolinium molybdenum borate glass with high Gd{sub 2}O{sub 3} content. United States: N. p., 2012. Web. doi:10.1016/J.MATERRESBULL.2012.07.015.
Suzuki, F., Honma, T., Doi, Y., Hinatsu, Y., & Komatsu, T., E-mail: komatsu@mst.nagaokaut.ac.jp. Magnetic properties and homogeneous distribution of Gd{sup 3+} ions in gadolinium molybdenum borate glass with high Gd{sub 2}O{sub 3} content. United States. doi:10.1016/J.MATERRESBULL.2012.07.015.
Suzuki, F., Honma, T., Doi, Y., Hinatsu, Y., and Komatsu, T., E-mail: komatsu@mst.nagaokaut.ac.jp. Thu . "Magnetic properties and homogeneous distribution of Gd{sup 3+} ions in gadolinium molybdenum borate glass with high Gd{sub 2}O{sub 3} content". United States. doi:10.1016/J.MATERRESBULL.2012.07.015.
@article{osti_22215579,
title = {Magnetic properties and homogeneous distribution of Gd{sup 3+} ions in gadolinium molybdenum borate glass with high Gd{sub 2}O{sub 3} content},
author = {Suzuki, F. and Honma, T. and Doi, Y. and Hinatsu, Y. and Komatsu, T., E-mail: komatsu@mst.nagaokaut.ac.jp},
abstractNote = {Highlights: ► The magnetic susceptibility of Gd{sub 2}O{sub 3}–MoO{sub 3}–B{sub 2}O{sub 3} glass was examined in T = 1.8–300 K. ► The effective magnetic moment was μ{sub eff} = 7.87 μ{sub B}. ► The Weiss constant was θ = −0.7 K. ► Gd{sup 3+} ions are distributed homogeneously as paramagnetic ions down to T = 1.8 K. -- Abstract: The magnetic susceptibility and specific heat of 21.25Gd{sub 2}O{sub 3}–63.75MoO{sub 3}–15B{sub 2}O{sub 3} (mol%) glass showing the crystallization of ferroelastic β′-Gd{sub 2}(MoO{sub 4}){sub 3} crystals are examined in the temperature range of T = 1.8–300 K to clarify magnetic and distribution states of Gd{sup 3+} ions. The magnetic susceptibility obeys the Curie–Weiss law, giving the effective magnetic moment of μ{sub eff} = 7.87 μ{sub B} and the Weiss constant of θ = −0.7 K. Any peak such as λ-type anomaly is not observed in the temperature dependence of specific heat in T = 1.8–5 K. It is suggested that Gd{sup 3+} ions in the glass with a high Gd{sub 2}O{sub 3} content of 21.25 mol% are distributed homogeneously and randomly as paramagnetic ions down to T = 1.8 K without inducing any strong magnetic interaction. The present study suggests that glasses based on the MoO{sub 3}–B{sub 2}O{sub 3} system are good hosts for the homogeneous solubility of a large amount of rare-earth oxides.},
doi = {10.1016/J.MATERRESBULL.2012.07.015},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 47,
place = {United States},
year = {2012},
month = {11}
}