Physics: Recent submissions

  • Tailoring a Pt-Ru catalyst for enhanced methanol electro-oxidation 
    Raman, R.K.; Shukla, A.K.; Gayen, A.; Hegde, M.S.; Priolkar, K.R.; Sarode, P.R.; Emura, S. (Journal of Power Sources. 157(1); 2006; 45-55.)
    A carbon-supported (1:1) Pt-Ru (Pt-Ru/C) alloy catalyst has been prepared in-house by the sulfito-complex route, and has been tailored to achieve enhanced activity towards methanol electro-oxidation by annealing it at ...
  • Composition and temperature dependence of the thermoelectric power of Ni(2+x)Mn(1-x)Ga alloys 
    Bhobe, P.A.; Monteiro, J.H.; Cascalheira, J.C.; Mendiratta, S.K.; Priolkar, K.R.; Sarode, P.R. (Journal of Physics-Condensed Matter. 18(48); 2006; 10843-10851.)
    The thermoelectric power (TEP) measurements have been carried out to investigate the changes in the electronic structure associated with the intermartensitic and martensitic transitions in Ni(2+x)Mn(1-x)Ga (0 less than or ...
  • High permeability of low loss Mn-Zn ferrite obtained by sintering nanoparticle Mn-Zn ferrite 
    Keluskar, S.H.; Tangsali, R.B.; Nalk, G.K.; Budkuley, J.S. (Journal of Magnetism and Magnetic Materials. 305(2); 2006; 296-303.)
    Nanoparticle ferrite having general formulae MnxZn1-xFe2O4 with x = 0.35/0.40/0.45/0.55/0.60/0.65 were prepared using nitrilotriacetate precursor method. Production of fine grain size material at low temperature is the ...
  • Preparation and magnetic properties of cadmium substituted lithium ferrite using microwave-induced combustion 
    Watawe, S.C.; Keluskar, S.; Gonbare, S.P.; Tangsali, R.B. (Thin Solid Films. 505(41641); 2006; 168-172.)
    Cadmium substituted lithium ferrites with general formula Li0.5-x/2 Cd-x Fe2.5-x/2O4 (where x=0.45, 0.5, 0.55, 0.6, 0.65, 0.7) were prepared using non-conventional microwave sintering method. The characterization carried ...
  • Structural and magnetic phase diagram of MnSe(1-x)Te(x) 
    Priolkar, K.R.; Bhobe, P.A.; D'Sa, J.B.C.E.; Das, A.; Krishna, P.S.R.; Sarode, P.R. (Solid State Phys. DAE Symp. 50; 2005; 833-834.)
    Neutron diffraction studies as a function of temperature on solid solutions of MnSe and MitTe in the Se rich region are presented. As Te is doped in MnSe, the structural phase transition wherein some portion of the sample ...
  • Superfluid, Mott-insulator, and mass-density-wave phases in the one-dimensional extended Bose-Hubbard model 
    Pai, R.V.; Pandit, Rahul (Physical Review B. 71(10); 2005; Article ID: 104508.)
    We use the finite-size, density-matrix-renormalization-group (FSDMRG) method to obtain the phase diagram of the one-dimensional (d=1) extended Bose-Hubbard model for density rho=1 in the U-V plane, where U and V are, ...
  • Orbital ordering in Pr(0.5)Sr(0.5)MnO(3): PrK-edge XAFS study 
    Priolkar, K.R.; Kulkarni, V.D.; Sarode, P.R.; Kumashiro, R.; Emura, S. (Physica Scripta. T115; 2005; 442-444.)
    Pr K-edge XAFS spectrum as a function of temperature in Pr(0.5)Sr(0.5)MnO(3) has been recorded on BL01B1 beam line at Spring-8, in order to study the effect of lattice distortions as the sample passes from a paramagnetic ...
  • Low-temperature neutron diffraction study of MnTe 
    D'Sa, J.B.C.E.; Bhobe, P.A.; Priolkar, K.R.; Das, A.; Paranjpe, S.K.; Prabhu, R.B.; Sarode, P.R. (Journal of Magnetism and Magnetic Materials. 285(41641); 2005; 267-271.)
    Investigation of transport and magnetic properties of MnTe at low temperatures showed anomalies like negative coefficient of resistance below 100 K and a sharp rise in susceptibility at around 83 K similar to a ferromagenetic ...
  • Oxide-ion conductivity in Cu(x)Ce(1-x)O(2-delta) (0 less than or equal to x less than or equal to 0.10) 
    Gayen, A.; Priolkar, K.R.; Shukla, A.K.; Ravishankar, N.; Hegde, M.S. (Materials Research Bulletin. 40(3); 2005; 421-431.)
    Up to 10 at. percent of copper readily substitutes for cerium in ceria. It is found that at oxygen partial pressures between 0.21 atm and 10(-5) atm, Cu(x)Ce(1-x)O(2-delta) (0 less than = x less than = 0.10) solid solution ...
  • Effect of sintering temperature and environment on magnetic properties of nanoparticle Mn-Zn ferrite synthesized with nitrilotriacetate precursor method 
    Tangsali, R.B.; Keluskar, S.H.; Naik, G.K.; Budkuley, J.S. (International Journal of Nanoscience. 3; 2004; 589-597.)
    Nitrilotriacetate precursors have been used for synthesis of oxide materials. High permeability Mn–Zn ferrite with general formula Mn sub(x)Zn sub(1-x)Fe sub(2)O sub(4) where x=0.3/0.35/0.4/0.45/0.5/0.55/0.6/0.65/0.7 were ...

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