High-Pressure Synthesis, Crystal Structures, and Properties of ScRhO3 and InRhO3 Perovskites

被引：13

作者：

Belik, Alexei A. ^{[1
]}

Matsushita, Yoshitaka ^{[2
]}

Tanaka, Masahiko ^{[2
]}

Takayama-Muromachi, Eiji ^{[3
]}

机构：

[1] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton WPI MANA, Tsukuba, Ibaraki 3050044, Japan

[2] NIMS, SPring Off 8, Sayo, Hyogo 6795148, Japan

[3] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

来源：

INORGANIC CHEMISTRY | 2013年 / 52卷 / 20期

基金：

日本学术振兴会;

关键词：

MAGNETIC-PROPERTIES; TEMPERATURE; OXIDES; TRANSITIONS; PROGRAM; TA;

D O I：

10.1021/ic401760m

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

ScRhO3 and InRhO3 perovskites were synthesized at a high pressure of 6 GPa and a high temperature of 1500 K. Crystal structures of ScRhO3 and InRhO3 were studied with synchrotron X-ray powder diffraction at 293 and 134 K. ScRhO3 and InRhO3 have a rarely observed monoclinic superstructure of the GdFeO3-type structure (space group P2(1)/n, a = 7.45660 angstrom, b = 7.43524 angstrom, c = 7.52191 angstrom, and beta = 93.2930 degrees for ScRhO3 and a = 7.59020 angstrom, b = 7.58377 angstrom, c = 7.59010 angstrom, and beta = 91.4154 degrees for InRhO3 at 293 K). InRhO3 has pseudo-orthorhombic lattice parameters of a = 10.8658 angstrom, b = 7.5837 angstrom, and c = 10.6006 angstrom. ScRhO3 and InRhO3 are nonmagnetic, and no phase transitions were detected between 2 and 873 K. Crystallographic trends and distortions of ScRhO3, InRhO3, and RRhO3 (R = rare earths, Y, and Bi) are discussed.

引用

页码：12005 / 12011

页数：7

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