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Title: Magnetic, ferroelectric, and spin phonon coupling studies of Sr{sub 3}Co{sub 2}Fe{sub 24}O{sub 41} multiferroic Z-type hexaferrite

Abstract

The magnetic, Raman, ferroelectric, and in-field {sup 57}Fe Mössbauer studies of polycrystalline multiferroic Sr{sub 3}Co{sub 2}Fe{sub 24}O{sub 41} are reported in this paper. From the magnetization studies, it is observed that the sample is soft magnetic in nature with low temperature magnetic spin transitions like longitudinal to transverse conical structure around 130 K and change in magnetic crystalline anisotropy from conical to planar structure at 250 K. Ferroelectric studies of the sample exhibit the spontaneous polarization at low temperature. Strong spin phonon and spin lattice coupling is observed through low temperature Raman spectroscopy. From the in-field {sup 57}Fe Mössbauer spectroscopy, spin up and spin down site occupations of Fe ions are calculated in the unit cell.

Authors:
; ; ; ; ;  [1]; ;  [2]
  1. Department of Physics, Osmania University, Hyderabad-500007 (India)
  2. UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore-452001 (India)
Publication Date:
OSTI Identifier:
22597736
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 120; Journal Issue: 5; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANISOTROPY; COUPLING; FERRITES; FERROELECTRIC MATERIALS; IRON 57; IRON IONS; MAGNETIZATION; PHONONS; POLARIZATION; POLYCRYSTALS; RAMAN SPECTROSCOPY; SPIN; STRONTIUM COMPOUNDS; TEMPERATURE RANGE 0065-0273 K

Citation Formats

Raju, N., Shravan Kumar Reddy, S., Ramesh, J., Gopal Reddy, Ch., Yadagiri Reddy, P., E-mail: yadagirireddy@yahoo.com, Rama Reddy, K., Sathe, V. G., and Raghavendra Reddy, V. Magnetic, ferroelectric, and spin phonon coupling studies of Sr{sub 3}Co{sub 2}Fe{sub 24}O{sub 41} multiferroic Z-type hexaferrite. United States: N. p., 2016. Web. doi:10.1063/1.4960444.
Raju, N., Shravan Kumar Reddy, S., Ramesh, J., Gopal Reddy, Ch., Yadagiri Reddy, P., E-mail: yadagirireddy@yahoo.com, Rama Reddy, K., Sathe, V. G., & Raghavendra Reddy, V. Magnetic, ferroelectric, and spin phonon coupling studies of Sr{sub 3}Co{sub 2}Fe{sub 24}O{sub 41} multiferroic Z-type hexaferrite. United States. doi:10.1063/1.4960444.
Raju, N., Shravan Kumar Reddy, S., Ramesh, J., Gopal Reddy, Ch., Yadagiri Reddy, P., E-mail: yadagirireddy@yahoo.com, Rama Reddy, K., Sathe, V. G., and Raghavendra Reddy, V. Sun . "Magnetic, ferroelectric, and spin phonon coupling studies of Sr{sub 3}Co{sub 2}Fe{sub 24}O{sub 41} multiferroic Z-type hexaferrite". United States. doi:10.1063/1.4960444.
@article{osti_22597736,
title = {Magnetic, ferroelectric, and spin phonon coupling studies of Sr{sub 3}Co{sub 2}Fe{sub 24}O{sub 41} multiferroic Z-type hexaferrite},
author = {Raju, N. and Shravan Kumar Reddy, S. and Ramesh, J. and Gopal Reddy, Ch. and Yadagiri Reddy, P., E-mail: yadagirireddy@yahoo.com and Rama Reddy, K. and Sathe, V. G. and Raghavendra Reddy, V.},
abstractNote = {The magnetic, Raman, ferroelectric, and in-field {sup 57}Fe Mössbauer studies of polycrystalline multiferroic Sr{sub 3}Co{sub 2}Fe{sub 24}O{sub 41} are reported in this paper. From the magnetization studies, it is observed that the sample is soft magnetic in nature with low temperature magnetic spin transitions like longitudinal to transverse conical structure around 130 K and change in magnetic crystalline anisotropy from conical to planar structure at 250 K. Ferroelectric studies of the sample exhibit the spontaneous polarization at low temperature. Strong spin phonon and spin lattice coupling is observed through low temperature Raman spectroscopy. From the in-field {sup 57}Fe Mössbauer spectroscopy, spin up and spin down site occupations of Fe ions are calculated in the unit cell.},
doi = {10.1063/1.4960444},
journal = {Journal of Applied Physics},
number = 5,
volume = 120,
place = {United States},
year = {Sun Aug 07 00:00:00 EDT 2016},
month = {Sun Aug 07 00:00:00 EDT 2016}
}