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Effect of neodymium doping on structural, electrical and magnetic properties of multiferroic GdMn2O5

  • Deepa Singh
  • Vandana Gupta
  • Ranjan K. Singh
  • K. K. Bamzai
Article
  • 157 Downloads

Abstract

Neodymium doped gadolinium manganate with general composition (Nd0.1Gd0.9Mn2O5) was prepared by co-precipitation method. Microstructural and compositional analysis has been carried out by X-ray diffraction and scanning electron microscopy. The optical studies have been carried out by Raman and FTIR. The electrical properties studied include dielectric constant, dielectric loss, ac conductivity and activation energy in the temperature range 20–400  °C. The shift in the dielectric peak towards higher temperature side with increasing frequency indicates frequency dispersion and suggesting the relaxational behaviour of the material. Frequency dependence of ac conductivity obeys the universal power law. The value of activation energy depends on increase in frequency. The room temperature magnetic behaviour has been analyzed from the magnetic field dependent magnetization curve. The grown material exhibits the paramagnetic behavior at room temperature.

Keywords

Dielectric Constant Dielectric Loss Neodymium Dielectric Anomaly High Temperature Side 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

One of the authors, Dr. Deepa Singh is thankful to Department of Science & Technology, Government of India for awarding Women Scientist vide No.: SR/WOS-A/PS-59/2012 (G). The authors would like to acknowledge Sophisticated Test and Instrumentation Centre (STIC) Cochin University for providing XRD and SEM facilities. The authors would also like to acknowledge SAIIF- IIT Madras for providing VSM facility.

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Crystal Growth & Materials Research Laboratory, Department of Physics and ElectronicsUniversity of JammuJammuIndia
  2. 2.Department of PhysicsBanaras Hindu UniversityVaranasiIndia

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