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Browsing Physics by Title

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  • Controlling disorder in the ZnGa sub(2)O sub(4):Cr sup(3+) persistent phosphor by Mg sup(2+) substitution 
    Basavaraju, N.; Priolkar, K.R.; Bessiere, A.; Sharma, S.; Gourier, D.; Binet, L.; Viana, B.; Emura, S. (Physical Chemistry Chemical Physics. 19(2); 2017; 1369-1377.)
    In this work we study the effect of increasing site occupancy disorder on the persistent luminescence of Cr sup(3+) doped zinc gallate spinel. This disorder was introduced by progressive substitution of Zn sup(2+) by Mg ...
  • Correlation between local structure distortions and martensitic transformation in Ni-Mn-In alloys 
    Lobo, D.N.; Priolkar, K.R.; Bhobe, P.A.; Krishnamurthy, D.; Emura, S. (Applied Physics Letters. 96(23); 2010; Article ID: 232508.)
    The local structural distortions arising as a consequence of increasing Mn content in Ni(2)Mn(1+x)In(1-x) (x=0, 0.3, 0.4, 0.5, and 0.6) and its effect on martensitic transformation have been studied using extended x-ray ...
  • d band filling and magnetic phase separation in transition metal-doped Mn3SnC 
    Gaonkar, V.N.; Dias, E.T.; Nigam, A.K.; Priolkar, K.R. (Journal of Alloys and Compounds. 829; 2020; ArticleID_154548.)
    The structural and magnetic properties of transition metal-doped Mn3SnC are studied with an aim to understand the effect of transition metal atom on magnetostructural properties of the antiperovskite compound. The doped ...
  • Defect induced ferromagnetism in Mn sub(3)Ga 
    Malik, S.V.; Dias, E.T.; Babu, P.D.; Priolkar, K.R. (Journal of Physics: Condensed Matter. 36(13); 2023; ArticleID_135701.)
    Ni-substituted Mn sub(3)Ga displays a weak ferromagnetism embedded in an antiferromagnetic (AF) phase. Upon field cooling, the alloy exhibits exchange bias and an open hysteresis loop, signifying kinetic arrest at room ...
  • Density functional study of AgScO2: Electronic and Optical properties 
    Bhamu, K.C.; Sahariya, J.; Vyas, R.; Priolkar, K.R. (Pramana - Journal of Physics. 89; 2017; ArticleID 11.)
    This paper focusses on the electronic and optical properties of scandium-based silver delafossite (AgScO2) semiconductor. The density functional theory (DFT) in the framework of full potential linearized augmented plane ...
  • Density functional theory-based study of the magnetic and optical properties of PbMO sub(3) (M = Cr, Fe) using the modified BeckeJohnson mBJ functional 
    Mahmood, Q.; Hassan, M.; Bhamu, K.C.; Yaseen, M.; Ramay, S.M.; Mahmood, A. (Journal of Physics and Chemistry of Solids. 128; 2019; 275-282.)
    In this study, we employed the density functional theory (DFT) approach using WIEN2k code to study the magnetic and optical behaviors of PbCrO sub(3) and PbFeO sub(3) perovskites in both cubic and tetragonal phases. We ...
  • Density-matrix renormalization group studies of mixture of two different ultracold bosonic atoms 
    Mishra, T.; Pai, R.V.; Das, B.P. (Journal of Physics: Conference Series. 80; 2007; Article ID 012039)
    We investigate the ground state phase diagram for a two species Bose mixture in a one dimensional optical lattice using the finite size density matrix renormalization group (FSDMRG) method. We present our result for different ...
  • Designing a red persistent luminescence phosphor: The example of YPO4:Pr3+,Ln(3+) (Ln = Nd, Er, Ho, Dy) 
    Lecointre, A.; Bessiere, A.; Bos, A.J.J.; Dorenbos, P.; Viana, B.; Jacquart, S. (Journal of Physical Chemistry C. 115(10); 2011; 4217-4227.)
    Yttrium phosphates codoped (Ce3+,Ln(3+)) and (Pr3+,Ln(3+)) with Ln = Nd, Er, Ho, Dy were investigated by thermally stimulated luminescence. Similar to Ce3+, Pr3+ was found able to trap holes up to high temperatures While ...
  • Determination of bond lengths in some aluminum-manganese alloys 
    Deshpande, S.D.; Mande, C. (Physica Status Solidi A- Applications and Materials Science. 124(1); 1991; K71-K75.)
    The modulation of X-ray absorption coefficients beyond the threshold results in fine structure which can furnish very useful information 11 to 31. In the vicinity of the principal absorption edge the fine structure calied ...
  • Determination of hole concentration and characteristic pseudogap temperature in underdoped and overdoped YBa(2)Cu(3)O(7-delta) system 
    Naik, M.S.; Sarode, P.R.; Priolkar, K.R.; Prabhu, R.B. (International Conference on Condensed Matter and Applied Physics (ICC 2015). Bikaner, India. 30-31 Oct 2015..AIP Conf. Proc. 1728; 2016; vp.)
    Electrical resistivity measurements in the temperature range 14-300K have been carried out on superconducting materials of the composition, Y(0.9-x)Pr(x)Ca(0.1)Ba(2)[Cu(1-y) Zn(y)](3)O(7-delta) with different values of x ...
  • Dielectrophoresis-assisted Raman spectroscopy of intravesicular analytes on metallic pyramids 
    Barik, A.; Sudhir, C.; Wittenberg, N.J.; Johnson, T.W.; Oh, S-H. (Analytical Chemistry. 88(3); 2016; 1704-1710.)
    Chemical analysis of membrane-bound containers such as secretory vesicles, organelles, and exosomes can provide insights into subcellular biology. These containers are loaded with a range of important biomolecules, which ...
  • Diffraction studies of rare-earth phosphate glasses 
    Shikerkar, A.G.; Desa, J.A.E.; Krishna, P.S.R.; Chitra, R. (Journal of Non-Crystalline Solids. 270(41642); 2000; 234-246.)
    A series of lanthanide oxides was incorporated in a vitreous phosphate host network. Molar constituents of the glasses were typically (La2O3)(10)(RxOy)(10)(Al2O3)(5)(P2O5)(75). Each glass had a different lanthanide (R atom) ...
  • Diffusion of water in bentonite clay 
    Dessai, R.R.; Sharma, V.K.; Prabhudesai, S.A.; Mitra, S.; Desa, J.A.E.; Mukhopadhyay, R. (Journal of The Physical Society of Japan. 82; 2013; SA008-.)
    Diffusion of water confined in sodium bentonite clay is studied using the quasi-elastic neutron scattering (QENS) technique. Hydration of bentonite clay is characterized by several methods including X-ray diffraction and ...
  • Diffusion of water in bentonite clay: Neutron scattering study 
    Sharma, V.K.; Prabhudesai, S.A.; Raut-Dessai, R.; Desa, J.A.E.; Mitra, S. (AIP Conf. Proc. 2013; 918-919.)
    Diffusion of water confined in natural bentonite clay is studied using the quasi-elastic neutron scattering (QENS) technique. X-ray diffraction shows a well-defined crystalline structure of the clay with an interlayer ...
  • Disorder induced negative magnetization in LaSrCoRuO(6) 
    Murthy, P.S.R.; Priolkar, K.R.; Bhobe, P.A.; Das, A.; Sarode, P.R.; Nigam, A.K. (Journal of Magnetism and Magnetic Materials 322(22); 2010; 3704-3709.)
    This paper reports effect of thermally induced disorder on the magnetic properties of LaSrCoRuO6 double perovskite. While the ordered sample is antiferromagnetic, the disordered sample exhibits negative values of magnetization ...
  • Dispersion characteristics of polarization maintaining elliptical core optical fibers by beat length measurements 
    Choudhury, P.K. (Optik. 108(4); 1998; 197-199.)
    An experimental method incorporating the measurement of beat-lengths is described to determine the group delay time difference between the orthogonally polarized modes of elliptical core polarization-maintaining optical ...
  • Dynamics in poly vinyl alcohol (PVA) based hydrogel: Neutron scattering study 
    Prabhudesai, S.A.; Lawrence, M.B.; Mitra, S.; Desa, J.A.E.; Mukhopadhyay, R. (AIP Conference Proceedings. 1665; 2015; ArticleID_040020.)
    Results of quasielastic neutron scattering measurements carried out on Poly Vinyl Alcohol (PVA) based hydrogels are reported here. PVA hydrogels are formed using Borax as a cross-linking agent in D sub(2)O solvent. This ...
  • Dynamics of nonergodic ferromagnetic/antiferromagnetic ordering and magnetocalorics in antiperovskite Mn sub(3)SnC 
    Cakır, O.; Cugini, C.; Solzi, M.; Priolkar, K.R.; Acet, M.; Farle, M. (Physical Review B. 96(1); 2017; ArticleID 014436.)
    We investigated the time dependence of the magnetic configuration at the mixed magnetic magnetostructural transition in Mn sub(3)SnC. The nonergodic nature of the transition involves the stabilization of a final magnetic ...
  • Effect of [OH-] linkages on luminescent properties of ZnO nanoparticles 
    John, T.T.; Priolkar, K.R.; Bessiere, A.; Sarode, P.R.; Viana, B. (Journal of Physical Chemistry C. 115(37); 2011; 18070-18075.)
    Optical properties of ZnO nanoparticles prepared from a simple chemical method using sodium zincate bath show strong white light emission. X-ray absorption fine structure studies reveal a completely different local environment ...
  • Effect of B-site dopants on magnetic and transport properties of LaSrCoRuO(6) 
    Murthy, P.S.R.; Priolkar, K.R.; Bhobe, P.A.; Das, A.; Sarode, P.R.; Nigam, A.K. (European Physical Journal B. 78(3); 2010; 275-282.)
    Effect of Co, Ru and Cu substitution at B and B' sites on the magnetic and transport properties of LaSrCoRuO(6) have been investigated. All the doped compositions crystallize in the monoclinic structure in the space group ...

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