Physics: Recent submissions

  • Factors influencing the martensitic transformation in Ni(50)Mn(35)Sn(15): an EXAFS study 
    Bhobe, P.A.; Priolkar, K.R.; Sarode, P.R. (Journal of Physics-Condensed Matter. 20(1); 2008; Article ID: 015219)
    Extended x-ray absorption fine-structure (EXAFS) measurements have been carried out on Ni(50)Mn(35)Sn(15) in the austenitic and martensitic phases. The temperatures associated with structural and magnetic phase transformations ...
  • Anomalous magnetic properties in Ni(50)Mn(35)In(15) 
    Bhobe, P.A.; Priolkar, K.R.; Nigam, A.K. (Journal of Physics D-Applied Physics. 41(23); 2008; Article ID: 235006)
    We present here a comprehensive investigation of the magnetic ordering in Ni(50)Mn(35)In(15) composition. A concomitant first order martensitic transition and the magnetic ordering occurring in this off-stoichiometric ...
  • Preparation and dielectric properties of cadmium substituted lithium ferrite using microwave-induced combustion 
    Watawe, S.C.; Bamne, U.A.; Gonbare, S.P.; Tangsali, R.B. (Materials Chemistry and Physics. 103(41673); 2007; 323-328.)
    Li-Cd ferrite powders with general formula Li0.5-x/2CdxFe2.5-x/2O4 (where x=0.45, 0.5, 0.55, 0.6, 0.65, 0.7) were synthesized using microwave-induced combustion process in a suitably modified microwave oven.The powders ...
  • Phase separation in a two-species Bose mixture 
    Mishra, T.; Pai, R.V.; Das, B.P. (Physical Review A. 76(1); 2007; Article ID: 013604.)
    We obtain the ground-state quantum phase diagram for a two-species Bose mixture in a one-dimensional optical lattice using the finite-size density-matrix renormalization group method. We discuss our results for different ...
  • Effect of sintering conditions on resistivity of nanoparticle Mn-Zn ferrite prepared by nitrilotriacetate precursor method 
    Tangsali, R.B.; Keluskar, S.H.; Naik, G.K.; Budkuley, J.S. (Journal of Materials Science. 42(3); 2007; 878-882.)
    Mn-Zn spinel ferrites are most important class of magnetic materials owing to their high saturation magnetization, high permeability, low loss and interesting applications in various fields. The magnetic as well as electrical ...
  • Room temperature magnetocaloric effect in Ni-Mn-In 
    Bhobe, P.A.; Priolkar, K.R.; Nigam, A.K. (Applied Physics Letters. 91(24); 2007; Article ID: 242503.)
    We have studied the effect of magnetic field on a nonstoichiometric Heusler alloy Ni(50)Mn(35)In(15) that undergoes a martensitic as well as a magnetic transition near room temperature. Temperature dependent magnetization ...
  • Origin of enhanced reducibility/oxygen storage capacity of Ce(1-x)Ti(x)O(2) compared to CeO(2) or TiO(2) 
    Dutta, G.; Waghmare, U.V.; Baidya, T.; Hegde, M.S.; Priolkar, K.R.; Sarode, P.R. (Chemistry of Materials. 18(14); 2006; 3249-3256.)
    We determine chemical origins of increase in the reducibility of CeO(2) upon Ti substitution using a combination of experiments and first-principles density functional theory calculations. Ce(1-x)Ti(x)O(2) ( x = 0.0-0.4) ...
  • Reducibility of Ce(1-x)Zr(x)O(2): origin of enhanced oxygen storage capacity 
    Dutta, G.; Waghmare, U.V.; Baidya, T.; Hegde, M.S.; Priolkar, K.R.; Sarode, P.R. (Catalysis Letters. 108(41702); 2006; 165-172.)
    We combine first-principles calculations with EXAFS studies to investigate the origin of high oxygen storage capacity in ceria-zirconia solid solution, prepared by solution combustion method. We find that nanocrystalline ...
  • Local atomic structure of martensitic Ni(2+x)Mn(1-x)Ga: An EXAFS study 
    Bhobe, P.A.; Priolkar, K.R.; Sarode, P.R. (Physical Review B. 74(22); 2006; Article ID 224425)
    The local atomic structure of Ni(2+x)Mn(1-x)Ga with 0 less than or equal to x less than or equal to 0.16 alloys was explored using Mn and Ga K-edge extended x-ray-absorption fine-structure (EXAFS) measurement. In order to ...
  • Understanding the local structures of Eu and Zr in Eu(2)O(3) Oxide doped and coated ZrO(2) nanocrystals by EXAFS study 
    Ghosh, P.; Priolkar, K.R.; Patra, A. (Journal of Physical Chemistry C. 111(2); 2006; 571-578.)
    The role of surface coating, doping, and heating on the modification of crystal structure of ZrO(2), on the local structure of Zr and Eu, and on the photoluminescence properties of Eu2O3 doped and coated ZrO(2) nanocrystals ...

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