Correlation of structure and spin–phonon coupling in (La, Nd) doped BiFeO 3  films | Zendy

Ahlawat Anju | Zendy; Satapathy S. | Zendy; Maan Satish | Zendy; Sathe V. G. | Zendy; Gupta P. K. | Zendy

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Correlation of structure and spin–phonon coupling in (La, Nd) doped BiFeO 3 films

Author(s) -

Ahlawat Anju,

Satapathy S.,

Maan Satish,

Sathe V. G.,

Gupta P. K.

Publication year - 2014

Publication title -

journal of raman spectroscopy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.748

H-Index - 110

eISSN - 1097-4555

pISSN - 0377-0486

DOI - 10.1002/jrs.4573

Subject(s) - raman spectroscopy , condensed matter physics , phonon , doping , materials science , coupling (piping) , spin (aerodynamics) , nuclear magnetic resonance , physics , optics , metallurgy , thermodynamics

We studied the effect of structural change on the spin–phonon coupling in doped BiFeO 3 (BFO) films (Bi 0.8 La 0.1 Nd 0.1 FeO 3 ) grown on SrTiO 3 (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 & Sons, Ltd.

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