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Synthesis and magnetic properties of the multiferroic GaFeO3 of orthorhombic and hexagonal symmetry

K. REĆKO1,* , U. WYKOWSKA2, W. OLSZEWSKI3, G. ANDRÉ4, J.J. MILCZAREK5, D. SATUŁA1, M. BIERNACKA1, B. KALSKA-SZOSTKO2, J. WALISZEWSKI1, K. SZYMAŃSKI1

Affiliation

  1. Faculty of Physics, University of Bialystok, K. Ciołkowskiego 1L, 15-245 Białystok, Poland
  2. Institute of Chemistry, University of Bialystok, K. Ciołkowskiego 1K, 15-245 Białystok, Poland
  3. ALBA Synchrotron Light Source, Ctra. BP 1413 km. 3,3, 08290, Cerdanyola del Valle`s, Barcelona, Spain
  4. Laboratoire Léon Brillouin, CEA-Saclay, 91191 Gif sur Yvette cedex
  5. National Centre for Nuclear Research, A. Sołtana 7, 05-400 Otwock, Świerk, Poland

Abstract

In the past decade research on the multiferroic nature of gallium iron oxide has been of interest for several reasons. GaFeO3 (GFO) has been intensively studied for its potential applications as a magnetoelectric material [1]. Such a system can be used for switching its electric state vs. magnetic state and vice versa. Moreover GFO seems to be promising memory media which allow a simultaneous reading and writing of data and will be useful in data storage as well [2]. The physical properties especially magnetism in GaFeO3, depend strongly on the method of preparation. This work reports the preparation of gallium iron oxide by the sol–gel route (SG) and its characterization made by x-ray together with neutron diffraction techniques. The low- and room temperature 57Fe Mössbauer spectroscopy measurements were collected to complement the phase characteristics with relative fractions of the orthorhombic end/or hexagonal phases..

Keywords

61.12.-q Neutron diffraction, 61.18.Fs Mössbauer spectroscopy, Nanoparticles 81.07.-b, Sol-gel 81.05.-t.

Submitted at: May 7, 2015
Accepted at: June 24, 2015

Citation

K. REĆKO, U. WYKOWSKA, W. OLSZEWSKI, G. ANDRÉ, J.J. MILCZAREK, D. SATUŁA, M. BIERNACKA, B. KALSKA-SZOSTKO, J. WALISZEWSKI, K. SZYMAŃSKI, Synthesis and magnetic properties of the multiferroic GaFeO3 of orthorhombic and hexagonal symmetry, Journal of Optoelectronics and Advanced Materials Vol. 17, Iss. 7-8, pp. 1173-1178 (2015)