Rapid Communication

Bulletin of Materials Science

, Volume 21, Issue 6, pp 499-502

Influence of inherent strain on the curie temperature of rare earth ion-doped bismuth vanadate

  • K SooryanarayanaAffiliated withSolid State and Structural Chemistry Unit, Indian Institute of Science
  • , T N Guru RowAffiliated withSolid State and Structural Chemistry Unit, Indian Institute of Science
  • , R SomashekarAffiliated withSolid State and Structural Chemistry Unit, Indian Institute of ScienceMaterials Research Centre, Indian Institute of Science
  • , K B R VarmaAffiliated withSolid State and Structural Chemistry Unit, Indian Institute of ScienceDepartment of Studies in Physics, University of Mysore

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Abstract

X-ray line broadening is found to be an effective parameter to estimate the strain associated with rare earth ion (Gd3+)-doped polycrystalline bismuth vanadate(Bi2VO5·5). The strain increases with increasing Gd3+ concentration. It is anisotropic and found to be maximum in (111) plane. The Curie temperature which is known to decrease with increase in the rare earth ion concentration in these compounds is correlated with increase in strain.

Keywords

Gd3+ doped bismuth vanadate strain analysis curie temperature