Correlation of structure and spin-phonon coupling in (La, Nd) doped BiFeO3 films

被引：8
|
作者：
Ahlawat, Anju [1 ]
Satapathy, S. [1 ]
Maan, Satish [2 ]
Sathe, V. G. [2 ]
Gupta, P. K. [1 ]
机构：
[1] Raja Ramanna Ctr Adv Technol, Laser Mat Dev & Devices Div, Indore 452013, Madhya Pradesh, India
[2] UGC DAE Consortium Sci Res, Indore 452017, Madhya Pradesh, India
来源：
JOURNAL OF RAMAN SPECTROSCOPY | 2014年 / 45卷 / 10期
关键词：
BiFeO3; thin films; Raman spectra; phonon; multiferroics; TEMPERATURE-DEPENDENT RAMAN; CERAMICS; CRYSTALS;
D O I：
10.1002/jrs.4573
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
We studied the effect of structural change on the spin-phonon coupling in doped BiFeO3 (BFO) films (Bi0.8La0.1Nd0.1FeO3) grown on SrTiO3 (001) substrate. The temperature-dependent Raman studies show phonon anomalies in the vicinity of magnetic ordering temperature T-N owing to the spin-phonon coupling. Doped films exhibit strong anomalies in the line widths of Raman bands around T-N revealing the presence of strong spin-lattice coupling. The modification in structure as a result of A-site doping in BFO films plays an important role in controlling the nature of spin-phonon coupling. Copyright (c) 2014 John Wiley & Sons, Ltd.
引用
收藏
页码：958 / 962
页数：5
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