Local structure of magnetoelectric BiFeO3-BaTiO3 ceramics probed by synchrotron X-Ray absorption spectroscopy

Sujittra Chandarak, Jaru Jutimoosik, Athipong Bootchanont, Muangjai Unruan, Pongsakorn Jantaratana, Shashank Priya, Sutham Srilomsak, Saroj Rujirawat, Rattikorn Yimnirun

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The novel Cu- and Mn-doped and Cu/Mn codoped 0.75BiFeO3-0. 25BaTiO3 magnetoelectric ceramics were successfully prepared by a solid-state reaction method. The dielectric, ferroelectric, ferromagnetic, and magnetoelectric properties were determined and all the results suggested that Cu and Mn dopants occupied different B-site lattices in the 0.75BiFeO 3-0.25BaTiO3 structure. To identify the preferential sites of Cu and Mn in the lattice, Synchrotron X-ray Absorption Spectroscopy (SXAS) measurements were carried out. A combination of both measured and simulated XAS results with a linear combination fitting (LCF) revealed that in Cu- and Mn-doped 0.75BiFeO3-0.25BaTiO3 ceramics both Mn and Cu substituted at Fe-site and Ti-site with slightly different proportion. On the other hand, both dopants were found to occupied different sites in Cu/Mn codoped 0.75BiFeO3-0.25BaTiO3 ceramics.

Original languageEnglish (US)
Pages (from-to)455-461
Number of pages7
JournalJournal of Superconductivity and Novel Magnetism
Volume26
Issue number2
DOIs
StatePublished - Feb 2013
Externally publishedYes

Bibliographical note

Funding Information:
Acknowledgements One of the authors (SC) is thankful to the Synchrotron Light Research Institute (Public Organization) for Ph.D. scholarship. AB is thankful for Ph.D. scholarship from the Science Achievement Scholarship of Thailand. MU and RY acknowledge support for postdoctoral research fellowship from the Higher Education Research Promotion and National Research University Project of Thailand, Office of the Higher Education Commission and Suranaree University of Technology.

Keywords

  • Dielectric properties
  • Electrical properties
  • Magnetic properties
  • X-ray methods

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