Synthesis and High-Pressure Study of Corundum-Type In2O3

被引：23

作者：

Garcia-Domene, B. ^{[1
]}

Sans, J. A. ^{[2
]}

Manjon, F. J. ^{[2
]}

Ovsyannikov, Sergey V. ^{[3
]}

Dubroyinsky, L. S. ^{[3
]}

Martinez-Garcia, D. ^{[1
]}

Gomis, O. ^{[4
]}

Errandonea, D. ^{[1
]}

Moutaabbid, H. ^{[5
]}

Le Godec, Y. ^{[5
]}

Ortiz, H. M. ^{[2
]}

Munoz, A. ^{[6
]}

Rodriguez-Hernandez, P. ^{[6
]}

Popescu, C. ^{[7
]}

机构：

[1] Univ Valencia, MALTA Consolider Team, Dept Fis Aplicada ICMUV, E-46100 Valencia, Spain

[2] Univ Politecn Valencia, MALTA Consolider Team, Inst Diseno Fabricac & Prod Automatizada, E-46022 Valencia, Spain

[3] Univ Bayreuth, Bayer Geoinst, D-95447 Bayreuth, Germany

[4] Univ Politecn Valencia, MALTA Consolider Team, Ctr Tecnol Fis Acust Mat & Astrofis, E-46022 Valencia, Spain

[5] Univ Paris 06, Sorbonne Univ, UMR CNRS 7590, Museum Natl Hist Nat,IMPMC,IRD UMR 206, F-75005 Paris, France

[6] CINVESTAV, Unidad Queretaro, Dept Nanociencia & Nanotecnol, Queretaro 76230, Mexico

[7] CELLS ALBA Synchrotron, E-08290 Barcelona, Spain

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2015年 / 119卷 / 52期

关键词：

CRYSTAL-STRUCTURE; PHASE-TRANSITION; HYDROSTATIC COMPRESSION; RHOMBOHEDRAL IN2O3; RUBY; OXIDES; NANOCRYSTALS; DIFFRACTION; PARAMETERS; DEVICES;

D O I：

10.1021/acs.jpcc.5b06939

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This work reports the high-pressure and high-temperature (HP-HT) synthesis of pure rhombohedral (corundum-type) phase of indium oxide (In2O3) from its most stable polymorph, cubic bixb-yite-type In2O3, using a multianvil press. Structural and vibrational properties of corundum-type In2O3 (rh-In2O3) have been characterized by means of angle-dispersive powder X-ray diffraction and Raman scattering measurements at high pressures which have been compared to structural and lattice dynamics ab initio calculations. The equation of state and the pressure dependence of the Raman-active modes of the corundum-type phase are reported and compared to those of corundum (alpha-Al2O3). It can be concluded that rh-In2O3 is stable under compression up to 14 GPa and it gradually transforms to the orthorhombic Rh2O3-III structure with Pbca space group (N. 61) between 14 and 26 GPa. The bulk modulus, axial compressibilities, and the pressure range of stability of the corundum-type phase in group IIIA sesquioxides A(2)O(3) (A = Al, Ga, and In) are discussed.

引用

页码：29076 / 29087

页数：12

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