Correlation of structure and spin–phonon coupling in (La, Nd) doped BiFeO3 films. (25th August 2014)

• Record Type: Journal Article
• Authors: Ahlawat, Anju; Satapathy, S.; Maan, Satish; Sathe, V. G.; Gupta, P. K.
• Is Part Of: Journal of Raman spectroscopy. Volume 45:Number 10(2014:Oct.)
• Page Start: 958
• Page End: 962
• Publication Date: 2014-08-25
• Subjects: Raman spectroscopy -- Periodicals; 535.846
• DOI: 10.1002/jrs.4573
• Languages: English
• ISSNs: 0377-0486

Abstract

<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <p>We studied the effect of structural change on the spin–phonon coupling in doped BiFeO₃ (BFO) films (Bi_0.8La_0.1Nd_0.1FeO₃) 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 © 2014 John Wiley &amp; Sons, Ltd.</p> </abstract>