Dynamic spectral response of solid solutions of the bismuth-strontium ferrite Bi1-x Sr x FeO3-δ in the frequency range 0.3-200 THz

被引：5

作者：

Anokhin, A. S. ^{[1
,5
]}

Razumnaya, A. G. ^{[1
]}

Torgashev, V. I. ^{[1
]}

Trotsenko, V. G. ^{[1
]}

Yuzyuk, Yu I. ^{[1
]}

Bush, A. A. ^{[2
]}

Shkuratov, V. Ya ^{[2
]}

Gorshunov, B. P. ^{[3
,4
]}

Zhukova, E. S. ^{[3
,4
]}

Kadyrov, L. S. ^{[3
,4
]}

Komandin, G. A. ^{[3
]}

机构：

[1] Southern Fed Univ, Rostov Na Donu 344006, Russia

[2] Moscow State Tech Univ Radioengn Elect & Automat, Moscow 117454, Russia

[3] Russian Acad Sci, Prokhorov Gen Phys Inst, Moscow 119991, Russia

[4] State Univ, Moscow Inst Phys & Technol, Dolgoprudny City 141700, Moscow Region, Russia

[5] Russian Acad Sci, Southern Sci Ctr, Rostov Na Donu 344006, Russia

来源：

PHYSICS OF THE SOLID STATE | 2013年 / 55卷 / 07期

基金：

俄罗斯基础研究基金会;

关键词：

NEUTRON-DIFFRACTION; PHASE-TRANSITIONS; BIFEO3; CERAMICS; SINGLE-PHASE; SYSTEM; MOSSBAUER; MULTIFERROICITY; CRYSTAL; STATE; RAY;

D O I：

10.1134/S1063783413070032

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Ceramic samples of Bi1 - x Sr (x) FeO3 - delta have been investigated using X-ray diffraction analysis, Raman spectroscopy, and infrared spectroscopy. It has been shown that the spectra of these solid solutions should be considered as a superposition of resonant phonon responses of the cubic perovskite and a relaxation response. No relaxators are observed in the pure compounds BiFeO3 and SrFeO3 - delta. It has been found that two concentration phase transitions occurs with the symmetry changes in the range 0.1 < x < 0.2 and in the range 0.8 < x < 1.0.

引用

页码：1417 / 1430

页数：14

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