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Pr2FeCrO6: A Type I Multiferroic.

Nibedita Das1, Satyendra Singh2, Amish G Joshi3

  • 1Department of Chemistry, Indian Institute of Technology Delhi , Hauz Khas, New Delhi 110016, India.

Inorganic Chemistry
|October 7, 2017
PubMed
Summary

We synthesized Pr2FeCrO6, a novel double perovskite exhibiting both ferroelectric and ferrimagnetic properties. This multiferroic material shows a phase transition at 453 K and magnetic ordering below 250 K.

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Area of Science:

  • Solid-state chemistry
  • Materials science
  • Magnetism and ferroelectricity

Background:

  • Double perovskites are promising materials for multiferroic applications.
  • Understanding the interplay between magnetic and electric properties is crucial for device development.

Purpose of the Study:

  • To synthesize and characterize the double perovskite Pr2FeCrO6.
  • To investigate its structural, magnetic, and ferroelectric properties.
  • To determine its multiferroic behavior.

Main Methods:

  • Solid-state synthesis method.
  • X-ray powder diffraction for structural analysis.
  • X-ray photoelectron spectroscopy (XPS) for cation oxidation states.
  • Magnetization studies (M-H loops) for magnetic properties.
  • 57Fe Mössbauer spectroscopy for hyperfine fields.
  • Dielectric measurements for ferroelectric transitions.

Main Results:

  • Pr2FeCrO6 crystallizes in a centrosymmetric Pbnm structure.
  • All cations exhibit a +3 oxidation state.
  • Paramagnetic at room temperature, with magnetic transition below 250 K.
  • Ferrimagnetic ordering suggested by Mössbauer and magnetization data.
  • Ferroelectric phase transition observed at 453 K (TCE).
  • Room temperature ferroelectric hysteresis loop with Ps = 1.04 μC/cm².

Conclusions:

  • Pr2FeCrO6 is a type I multiferroic material.
  • The ferroelectric transition temperature (TCE) is higher than the magnetic ordering temperature (TCM).
  • The observed properties establish Pr2FeCrO6 as a potential candidate for advanced electronic applications.