Thermal, magnetic and electric properties of RMn2O5 (R=Tb, Dy and Ho) based multiferroics

• Authors: N. Pavan Kumar , Suresh Bharadwaj , P. Venugopal Reddy
• Languages of publication: EN

Abstracts

EN

A series of multiferroic materials with the compositional
formula RMn2O5 (where R=Tb, Dy andHo)were
prepared by the solid state reaction technique. After characterising
the samples structurally, a systematic investigation
of specific heat, magnetization and dielectric studies
has been undertaken, over a temperature range of
4–300 K. Based on these studies, it has been observed
that all the samples exhibit multiple transitions below
45 K. A large magnetic anisotropy, primarily originating
from spin-orbit coupling of R3+ moments was clearly observed
in these materials. Finally, the magneto-caloric effect
(MCE) computations were also carried out, mainly to
examine the feasibility of using these materials as magnetic
refrigerants. Suitable qualitative explanations for
the various phenomena observed in this investigation are
given.

Keywords

EN

Multiferroics; Rietveld analysis; Specific Heat; Magnetization; thermal properties; dielectric constant; magnetocaloric effect

• Publisher: De Gruyter Open
• Journal: Multiferroic Materials
• Year: 2014
• Volume: 1
• Issue: 1

Dates

accepted

1 - 5 - 2014

online

23 - 6 - 2014

received

3 - 4 - 2014

Contributors

author

N. Pavan Kumar

• Department of Physics, Osmania University,
  Hyderabad- 500007, India

author

Suresh Bharadwaj

• Thermodynamics Laboratory, UGC-DAE Consortium
  for Scientific Research, University Campus, Khandwa Road,
  Indore 452 001, India

author

P. Venugopal Reddy

• Department of
  Physics, Osmania University, Hyderabad- 500007, India,

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Identifiers

DOI

10.2478/muma-2014-0001