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Title: Effect of Ti doping on high pressure behavior of BiMn{sub 2}O{sub 5}

Our high pressure x-ray diffraction studies on BiMn{sub 1.5}Ti{sub 0.5}O{sub 5} show iso-structural phase transition above 12 GPa similar to the one observed in undoped BiMn{sub 2}O{sub 5}; however anisotropic compressional behavior is found to be more enhanced in the doped case. Unlike undoped system, an anomalous lattice expansion along c axis has been observed in BiMn{sub 1.5}Ti{sub 0.5}O{sub 5} above 12 GPa; whereas the b lattice parameter has been found to be more compressible as compared to BiMn{sub 2}O{sub 5}. As doping with Ti reduces the magnetic interactions among Mn ions, the observed changes are suggestive of having adverse magnetic implications in the observed iso-structural phase transition.
Authors:
; ;  [1] ;  [2]
  1. High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 40008 (India)
  2. Centre for Materials Science and Engineering, National Institute of Technology, Hamirpur-177005 (India)
Publication Date:
OSTI Identifier:
22269493
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1591; Journal Issue: 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANISOTROPY; BISMUTH COMPOUNDS; COMPARATIVE EVALUATIONS; CRYSTAL DOPING; CRYSTAL LATTICES; DOPED MATERIALS; LATTICE PARAMETERS; MANGANATES; MANGANESE IONS; PHASE TRANSFORMATIONS; PRESSURE DEPENDENCE; TITANATES; X-RAY DIFFRACTION