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Title: Magnetic and structural properties of yellow europium oxide compound and Eu(OH){sub 3}

Abstract

A new material based on a yellow europium oxide compound was prepared from europium oxide in a high vacuum environment. The structural and magnetic properties of the material were investigated. Owing to the absence of a crystal structure, the material exhibited a disordered magnetic behavior. In a reaction with deionized (DI) water without applied heat, the compound assumed a white color as soon as the DI water reached the powder, and the structure became polycrystalline Eu(OH){sub 3}. The magnetic properties, such as the thermal hysteresis, disappeared after the reaction with DI water, and the magnetic susceptibility of the yellow oxide compound weakened. The magnetic properties of Eu(OH){sub 3} were also examined. Although Eu{sup 3+} is present in Eu(OH){sub 3}, a high magnetic moment due to the crystal field effect was observed. - Graphical abstract: (top left) Optical image of the yellow europium oxide compound. (top right) Optical image of the product of DI water and yellow europium oxide. (bottom) Magnetization curves as a function of temperature measured in various magnetic field. - Highlights: • We prepared a new material based on a yellow europium oxide compound from europium oxide. • We characterized the magnetic properties of the material which exhibitsmore » a disordered magnetic behavior such as thermal hysteresis. • The compound turned white (Eu(OH){sub 3}) as soon as the DI water reached the powder. • The thermal hysteresis disappeared after the reaction with DI water and the magnetic susceptibility of the yellow oxide compound weakened.« less

Authors:
 [1];  [2];  [3];  [1]
  1. Cavendish Laboratory, University of Cambridge, J. J Thomson Av., Cambridge CB3 0HE (United Kingdom)
  2. Department of Physics and IPAP, Yonsei University, Seoul 120-749 (Korea, Republic of)
  3. Laboratorio de Cerámicos y Nanomateriales, Facultad de Ciencias Físicas, Universidad Nacional Mayor de San Marcos, Ap. Postal 14-0149, Lima, Perú (Peru)
Publication Date:
OSTI Identifier:
22486729
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 228; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CRYSTAL FIELD; CRYSTAL STRUCTURE; EUROPIUM HYDROXIDES; EUROPIUM IONS; EUROPIUM OXIDES; HYSTERESIS; MAGNETIC FIELDS; MAGNETIC MOMENTS; MAGNETIC SUSCEPTIBILITY; MAGNETISM; MAGNETIZATION; POLYCRYSTALS; POWDERS; TEMPERATURE DEPENDENCE

Citation Formats

Lee, Dongwook, Seo, Jiwon, Valladares, Luis de los Santos, Avalos Quispe, O., and Barnes, Crispin H.W. Magnetic and structural properties of yellow europium oxide compound and Eu(OH){sub 3}. United States: N. p., 2015. Web. doi:10.1016/J.JSSC.2015.04.018.
Lee, Dongwook, Seo, Jiwon, Valladares, Luis de los Santos, Avalos Quispe, O., & Barnes, Crispin H.W. Magnetic and structural properties of yellow europium oxide compound and Eu(OH){sub 3}. United States. https://doi.org/10.1016/J.JSSC.2015.04.018
Lee, Dongwook, Seo, Jiwon, Valladares, Luis de los Santos, Avalos Quispe, O., and Barnes, Crispin H.W. 2015. "Magnetic and structural properties of yellow europium oxide compound and Eu(OH){sub 3}". United States. https://doi.org/10.1016/J.JSSC.2015.04.018.
@article{osti_22486729,
title = {Magnetic and structural properties of yellow europium oxide compound and Eu(OH){sub 3}},
author = {Lee, Dongwook and Seo, Jiwon and Valladares, Luis de los Santos and Avalos Quispe, O. and Barnes, Crispin H.W.},
abstractNote = {A new material based on a yellow europium oxide compound was prepared from europium oxide in a high vacuum environment. The structural and magnetic properties of the material were investigated. Owing to the absence of a crystal structure, the material exhibited a disordered magnetic behavior. In a reaction with deionized (DI) water without applied heat, the compound assumed a white color as soon as the DI water reached the powder, and the structure became polycrystalline Eu(OH){sub 3}. The magnetic properties, such as the thermal hysteresis, disappeared after the reaction with DI water, and the magnetic susceptibility of the yellow oxide compound weakened. The magnetic properties of Eu(OH){sub 3} were also examined. Although Eu{sup 3+} is present in Eu(OH){sub 3}, a high magnetic moment due to the crystal field effect was observed. - Graphical abstract: (top left) Optical image of the yellow europium oxide compound. (top right) Optical image of the product of DI water and yellow europium oxide. (bottom) Magnetization curves as a function of temperature measured in various magnetic field. - Highlights: • We prepared a new material based on a yellow europium oxide compound from europium oxide. • We characterized the magnetic properties of the material which exhibits a disordered magnetic behavior such as thermal hysteresis. • The compound turned white (Eu(OH){sub 3}) as soon as the DI water reached the powder. • The thermal hysteresis disappeared after the reaction with DI water and the magnetic susceptibility of the yellow oxide compound weakened.},
doi = {10.1016/J.JSSC.2015.04.018},
url = {https://www.osti.gov/biblio/22486729}, journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = ,
volume = 228,
place = {United States},
year = {Sat Aug 15 00:00:00 EDT 2015},
month = {Sat Aug 15 00:00:00 EDT 2015}
}