HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Science / Faculty of Science >
Peer-reviewed Journal Articles, etc >

Studies on phase transitions of rare earth tantalates (Sm(1-x)Ln(x))(3)TaO7 (Ln = Nd, Eu) with fluorite-related structure

This item is licensed under:Creative Commons Attribution-NoDerivatives 4.0 International

Files in This Item:

The file(s) associated with this item can be obtained from the following URL:

Title: Studies on phase transitions of rare earth tantalates (Sm(1-x)Ln(x))(3)TaO7 (Ln = Nd, Eu) with fluorite-related structure
Authors: Hinatsu, Yukio Browse this author
Doi, Yoshihiro Browse this author →KAKEN DB
Keywords: Phase transition
Fluorite-related structure
Issue Date: May-2019
Publisher: 社団法人 日本セラミックス協会
Journal Title: Journal of the Ceramic Society of Japan
Volume: 127
Issue: 5
Start Page: 273
End Page: 278
Publisher DOI: 10.2109/jcersj2.18219
Abstract: The phase transition of Sm3TaO7 with orthorhombic fluorite-related structure was investigated. Solid solutions (Sm1-xNdx)(3)TaO7 and (Sm1-xEux)(3)TaO7 were prepared, and their structures at room temperature are well described with the space group C222(1). The phase transition temperature for (Sm1-xNdx)(3)TaO7 decreases from 1340 K with increasing Nd concentration, while that for (Sm1-xEux)(3)TaO7 increases with Eu concentration. However, both of these solid solutions show the same trend, i.e., with decreasing average rare earth radii, the phase transition temperature of (Sm(1-x)Ln(x))(3)TaO7 (Ln = Nd, Eu) increases. This trend is the same as that observed for Ln(3)MO(7) (M = Mo, Ru, Re, Os, or Ir). That is, the phase transition occurs with lattice contraction. Above the transition temperature, crystal structures for (Sm(1-x)Ln(x))(3)TaO7 (Ln = Nd, Eu) are well described with space group Pnma. (C) 2019 The Ceramic Society of Japan. All rights reserved.
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 - Hokkaido University