Strong magnetoelectric and spin phonon coupling in SmFeO{sub 3}/PMN-PT composite

Journal Article · Mon Aug 22 04:00:00 EDT 2016 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4961581· OSTI ID:22590527

Ahlawat, Anju; Satapathy, S.; Gupta, P. K. ^[1]; Sathe, V. G.; Choudhary, R. J. ^[2]

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1. Nano Functional Materials Laboratory, Laser Materials Development and Devices Division, Raja Ramanna Centre for Advanced Technology, Indore 452013 (India)
2. UGC-DAE Consortium for Scientific Research, Indore 452017 (India)

We have investigated spin phonon coupling in the strain coupled magnetoelectric SmFeO{sub 3}/0.65Pb(Mg{sub 1/3}Nb{sub 2/3})O{sub 3}–0.35PbTiO{sub 3} (PMN-PT) composite in the temperature range of 300–650 K by Raman spectroscopy and magnetic measurements. The SmFeO{sub 3}/PMN-PT composite shows sharp rise in magnetic moment across ferroelectric transition temperature (T{sub c}) of PMN-PT. Around this transition temperature (T{sub c} of PMN-PT), the temperature evolution of Raman spectra of the composite also shows anomalies in the phonon frequencies and line width corresponding to the SmFeO{sub 3} phase which indicate structural modifications in the SmFeO{sub 3} phase around T{sub c} of PMN-PT. The observed structural, magnetic, and phonon anomalies of SmFeO{sub 3} around T{sub c} of PMN-PT in SmFeO{sub 3}/PMN-PT are attributed to spin-phonon coupling providing evidence of strong strain mediated magnetoelectric effects.

• OSTI ID: 22590527
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 8 Vol. 109; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COUPLING
ELECTRICAL PROPERTIES
FERROELECTRIC MATERIALS
LINE WIDTHS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
PHONONS
RAMAN SPECTRA
RAMAN SPECTROSCOPY
SPIN
STRAINS
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
TRANSITION TEMPERATURE