High pressure antiferrodistortive phase transition in mixed crystals of EuTiO3 and SrTiO3

被引：4

作者：

Parisiades, Paraskevas ^{[1
,2
]}

Saltarelli, Francesco ^{[3
]}

Liarokapis, Efthymios ^{[4
]}

Koehler, Juergen ^{[5
]}

Bussmann-Holder, Annette ^{[5
]}

机构：

[1] Univ Paris 07, CNRS, UMR 7162, Lab Mat & Phenomenes Quant, Paris 13, France

[2] European Synchrotron Radiat Facil, Beamline ID27, 71 Ave Martyrs, F-38000 Grenoble, France

[3] Sapienza Univ Rome, Dept Phys, Piazzale Aldo Moro 5, I-00185 Rome, Italy

[4] Natl Tech Univ Athens, Dept Phys, GR-15780 Athens, Greece

[5] Max Planck Inst Solid State Res, Heisenbergstr 1, D-70569 Stuttgart, Germany

来源：

AIP ADVANCES | 2016年 / 6卷 / 06期

关键词：

110 DEGREES K; POWDER DIFFRACTION; MAGNETIC-STRUCTURE;

D O I：

10.1063/1.4954819

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report a detailed high pressure study on Eu1-xSrxTiO3 polycrystalline samples using synchrotron x-ray diffraction. We have observed a second-order antiferrodistortive phase transition for all doping levels which corresponds to the transition that has been previously explored as a function of temperature. The analysis of the compression mechanism by calculating the lattice parameters, spontaneous strains and tilt angles of the TiO6 octahedra leads to a high pressure phase diagram for Eu1-xSrxTiO3. (C) 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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