P A Joy

Articles in Scholarly Journals [Incomplete List]

  1. Microwave–hydrothermal synthesis of ?-Fe2O3 nanoparticles and their magnetic properties
    Materials Research Bulletin, vol. 42, no. 8, pp. 1570–1576, 2007
  2. Studies of quenched disorder in La0.7Ca0.3MnO3-type CMR manganite system from magnetic, transport and positron annihilation spectroscopic measurements
    Physica B: Condensed Matter, vol. 398, no. 1, pp. 23–27, 2007
  3. Enhanced magnetostrictive properties of CoFe2O4 synthesized by an autocombustion method
    Sensors and Actuators A: Physical, vol. 137, no. 2, pp. 256–261, 2007
  4. Direct comparison of the aging and memory effects of magnetic nanoclusters and nanoparticles
    Solid State Communications, vol. 141, no. 6, pp. 307–310, 2007
  5. Synthesis and magnetic properties of Mn doped ZnO nanowires
    Solid State Communications, vol. 142, no. 4, pp. 190–194, 2007
  6. Enhancement of the phase transformation temperature of ?-Fe2O3 by Zn2+ doping
    Journal of Materials Chemistry, vol. 17, no. 5, p. 453, 2007
  7. Magnetic and magnetostrictive properties of manganese substituted cobalt ferrite
    Journal of Physics D: Applied Physics, vol. 40, no. 11, pp. 3263–3267, 2007
  8. Finite size effects on the electrical properties of sol–gel synthesized CoFe2O4 powders: deviation from Maxwell–Wagner theory and evidence of surface polarization effects
    Journal of Physics D: Applied Physics, vol. 40, no. 6, pp. 1593–1602, 2007
  9. Enhanced Permeability and Dielectric Constant of NiZn Ferrite Synthesized in Nanocrystalline Form by a Combustion Method
    Journal of the American Ceramic Society, vol. 90, no. 5, pp. 1494–1499, 2007
  10. Evidence for intergranular tunnelling in polyaniline passivated a-Fe nanoparticles
    Nanotechnology, vol. 17, no. 18, pp. 4765–4772, 2006
  11. Optically transparent magnetic nanocomposites based on encapsulated Fe3O4 nanoparticles in a sol–gel silica network
    Nanotechnology, vol. 17, no. 22, pp. 5565–5572, 2006
  12. Experimental comparison of the structural, magnetic, electronic, and optical properties of ferromagnetic and paramagnetic polycrystalline Zn_{1â??x}Co_{x}O (x=0,0.05,0.1)
    Physical Review B, vol. 74, no. 3, 2006
  13. Effect of thermal annealing on Fe40Ni38B18Mo4 thin films: modified Herzer model for magnetic evolution
    Journal of Physics D: Applied Physics, vol. 39, no. 10, pp. 1993–2000, 2006
  14. Structural, magnetic and electrical properties of the sol-gel prepared Li0.5Fe2.5O4 fine particles
    Journal of Physics D: Applied Physics, vol. 39, no. 5, pp. 900–910, 2006
  15. Enhanced magnetostrictive properties of Mn substituted cobalt ferrite Co[sub 1.2]Fe[sub 1.8]O[sub 4]
    Journal of Applied Physics, vol. 99, no. 7, p. 073901, 2006
  16. Ferromagnetism induced by hydrogen in polycrystalline nonmagnetic Zn[sub 0.95]Co[sub 0.05]O
    Applied Physics Letters, vol. 89, no. 3, p. 032508, 2006
  17. Tuning of the magnetostrictive properties of CoFe[sub 2]O[sub 4] by Mn substitution for Co
    Journal of Applied Physics, vol. 100, no. 11, p. 113911, 2006
  18. Influence of magnetic (Fe+3) and non-magnetic (Ga+3) ion doping at Mn-site on the transport and magnetic properties of La0.7Ca0.3MnO3
    Solid State Communications, vol. 137, no. 11, pp. 595–600, 2006
  19. Swift heavy ion irradiation effects on structural and magnetic characteristics of RFeO3 (R=Er, Ho and Y) crystals
    Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 243, no. 1, pp. 134–142, 2006
  20. Size-dependent magnetic properties of nanocrystalline yttrium iron garnet powders
    Journal of Magnetism and Magnetic Materials, vol. 301, no. 1, pp. 212–219, 2006
  21. Finite size effects on the structural and magnetic properties of sol–gel synthesized NiFe2O4 powders
    Journal of Magnetism and Magnetic Materials, vol. 302, no. 1, pp. 190–195, 2006
  22. Modifications in magnetic anisotropy of M—type strontium hexaferrite crystals by swift heavy ion irradiation.
    Journal of Magnetism and Magnetic Materials, vol. 305, no. 2, pp. 392–402, 2006
  23. Characterization of nanosized NiZn ferrite powders synthesized by an autocombustion method
    Materials Chemistry and Physics, vol. 100, no. 1, pp. 98–101, 2006
  24. Low-temperature synthesis of nanocrystalline powders of lithium ferrite by an autocombustion method using citric acid and glycine
    Materials Letters, vol. 59, no. 21, pp. 2630–2633, 2005
  25. Synthesis of chromium substituted nano particles of cobalt zinc ferrites by coprecipitation
    Materials Letters, vol. 59, no. 27, pp. 3402–3405, 2005
  26. Electronic structure and ferromagnetism of polycrystalline ZnCoO (0==0.15)
    Solid State Communications, vol. 134, no. 10, pp. 665–669, 2005
  27. Chemistry of Materials, vol. 17, no. 26, pp. 6507–6510, 2005
  28. Journal of the American Chemical Society, vol. 127, no. 26, pp. 9326–9327, 2005
  29. Langmuir, vol. 21, no. 23, pp. 10638–10643, 2005
  30. Magnetic properties of superparamagnetic lithium ferrite nanoparticles
    Journal of Applied Physics, vol. 98, no. 12, p. 124312, 2005
  31. A Novel Low-Temperature Synthesis of Nanosized NiZn Ferrite
    Journal of the American Ceramic Society, vol. 88, no. 9, pp. 2597–2599, 2005
  32. Magnetic properties of the self-doped lanthanum manganites La_{1-x}MnO_{3}
    Physical Review B, vol. 72, no. 2, 2005
  33. Effect of disorder on the magnetic properties of LaMn_{0.5}Fe_{0.5}O_{3}
    Physical Review B, vol. 72, no. 5, 2005
  34. Superspin glass behavior of a nonstoichiometric lanthanum manganite LaMnO_{3.13}
    Physical Review B, vol. 72, no. 13, 2005
  35. Cure Characteristics and Dielectric Properties of Magnetic Composites Containing Strontium Ferrite
    Journal of Elastomers and Plastics, vol. 37, no. 2, pp. 109–121, 2005
  36. Magnetic field–induced biomimetic synthesis of superparamagnetic poly (vinyl alcohol)–maghemite composite
    Journal of Materials Research, vol. 19, no. 6, pp. 1676–1681, 2004
  37. A facile liquid foam based synthesis of nickel nanoparticles and their subsequent conversion to NicoreAgshell particles: structural characterization and investigation of magnetic properties
    Journal of Materials Chemistry, vol. 14, no. 19, p. 2941, 2004
  38. Effect of mechanical milling on the structural, magnetic and dielectric properties of coprecipitated ultrafine zinc ferrite
    Journal of Magnetism and Magnetic Materials, vol. 269, no. 2, pp. 217–226, 2004
  39. Processability and Magnetic Properties of Rubber Ferrite Composites Containing Barium Ferrite
    International Journal of Polymeric Materials, vol. 53, no. 7, pp. 565–575, 2004
  40. Chemistry of Materials, vol. 16, no. 7, pp. 1168–1169, 2004
  41. Chemistry of Materials, vol. 16, no. 9, pp. 1828–1828, 2004
  42. Metastable ferromagnetic phases with predictable Tcs in La2MnCo1-xNixO6
    Solid State Communications, vol. 130, no. 8, pp. 547–550, 2004
  43. Observation of higher magnetization on the substitution of Al for Co in La2MnCoO6
    Solid State Communications, vol. 130, no. 10, pp. 691–694, 2004
  44. Synthesis of nanosized MgFe2O4 powders by microwave hydrothermal method
    Materials Letters, vol. 58, no. 6, pp. 1092–1095, 2004
  45. Microwave-accelerated hydrothermal synthesis of blue white phosphor: Sr2CeO4
    Materials Letters, vol. 58, no. 20, pp. 2521–2524, 2004
  46. Studies on the evolution of a low-temperature anomaly in the AC susceptibility of ferromagnetic compositions in the La1$minus;xMnO3 (0Journal of Magnetism and Magnetic Materials, vol. 277, no. 1-2, pp. 209–215, 2004
  47. Effect of cobalt doping on the magnetic properties of superparamagnetic -FeO-polystyrene nanocomposites
    Journal of Magnetism and Magnetic Materials, vol. 283, no. 2-3, pp. 344–352, 2004
  48. Structural, magnetic and Mössbauer studies on nickel-zinc ferrites synthesized via a precipitation route
    physica status solidi (c), vol. 1, no. 12, pp. 3495–3498, 2004
  49. Effect of carbon black on the mechanical and dielectric properties of rubber ferrite composites containing barium ferrite
    Journal of Applied Polymer Science, vol. 89, no. 3, pp. 769–778, 2003
  50. Magnetic properties of La2MnCo1-xFexO6
    Journal of Magnetism and Magnetic Materials, vol. 261, no. 3, pp. 433–441, 2003
  51. Observation of three different ferromagnetic phases with predictable Tc s in La2MnCo0.5Ni0.5O6
    Journal of Physics: Condensed Matter, vol. 15, no. 14, pp. L243–L248, 2003
  52. Role of the rare-earth ion on the strength of the ferromagnetic exchange interactions in RMn0.5M0.5O3 (M = Co, Ni)
    Journal of Physics: Condensed Matter, vol. 16, no. 1, pp. 155–163, 2003
  53. The origin of ferromagnetism in LaMnO3+$\delta$
    Journal of Physics: Condensed Matter, vol. 14, no. 19, pp. 4985–4993, 2002
  54. The limiting value of x in the ferromagnetic compositions La1 xMnO3
    Journal of Physics: Condensed Matter, vol. 14, no. 39, pp. L663–L669, 2002
  55. Effect of R on the magnetic transition temperature of RMn0.5Co0.5O3
    Solid State Communications, vol. 121, no. 4, pp. 219–222, 2002
  56. Studies on the effect of substitution of tetravalent ions for La3+ in LaMnO3
    Journal of Magnetism and Magnetic Materials, vol. 247, no. 3, pp. 316–323, 2002
  57. Two ferromagnetic phases with different spin states of Mn and Ni in LaMn_{0.5}Ni_{0.5}O_{3}
    Physical Review B, vol. 65, no. 18, 2002
  58. Processability, hardness, and magnetic properties of rubber ferrite composites containing manganese zinc ferrites
    Plastics, Rubber and Composites, vol. 31, no. 3, pp. 106–113, 2002
  59. Synthesis of two different ferromagnetic phases of RMn0.5Co0.5O3 (R=Pr, Nd, Sm) by a low-temperature method
    Materials Letters, vol. 51, no. 2, pp. 172–176, 2001
  60. Tailoring magnetic and dielectric properties of rubber ferrite composites containing mixed ferrites
    Bulletin of Materials Science, vol. 24, no. 6, pp. 623–631, 2001
  61. Journal of Physics: Condensed Matter, vol. 13, no. 29, pp. 6433–6438, 2001
  62. Journal of Physics: Condensed Matter, vol. 13, no. 39, pp. L841–L846, 2001
  63. Journal of Physics: Condensed Matter, vol. 13, no. 4, pp. 649–656, 2001
  64. Journal of Physics: Condensed Matter, vol. 13, no. 48, pp. 11001–11007, 2001
  65. Neutron depolarization and diffraction studies in cluster glass La0.5Sr0.5CoO3
    Journal of Alloys and Compounds, vol. 326, no. 1-2, pp. 101–104, 2001
  66. Journal of Materials Science, vol. 36, no. 23, pp. 5551–5557, 2001
  67. Comment II on “Grain-boundary effects on the electrical resistivity and the ferromagnetic transition temperature of La[sub 0.8]Ca[sub 0.2]MnO[sub 3]” [Appl. Phys. Lett. 77, 118 (2000)]
    Applied Physics Letters, vol. 78, no. 12, p. 1793, 2001
  68. Comment on “Giant magnetoresistance of the La[sub 1-x]Ag[sub x]MnO[sub 3] polycrystalline inhomogeneous granular system” [Appl. Phys. Lett. 77, 723 (2000)]
    Applied Physics Letters, vol. 78, no. 23, p. 3747, 2001
  69. Unusual magnetic hysteresis behavior of oxide spinel MnCo2O4
    Journal of Magnetism and Magnetic Materials, vol. 210, no. 1-3, pp. 31–34, 2000
  70. Comparison of the irreversible thermomagnetic behaviour of some ferro- and ferrimagnetic systems
    Bulletin of Materials Science, vol. 23, no. 2, pp. 97–101, 2000
  71. Low-temperature synthesis of single phase LaMn0.5Co0.5O3
    Materials Letters, vol. 46, no. 5, pp. 261–264, 2000
  72. Comparison of the zero-field-cooled magnetization behavior of some ferromagnetic and ferrimagnetic systems
    Journal of Magnetism and Magnetic Materials, vol. 218, no. 2-3, pp. 229–237, 2000
  73. On the low-temperature anomaly in the AC susceptibility of La0.9Ca0.1MnO3
    Journal of Magnetism and Magnetic Materials, vol. 220, no. 2-3, pp. 106–114, 2000
  74. Effect of sample shape on the zero-field-cooled magnetization behavior: comparative studies on NiFe2O4, CoFe2O4 and SrFe12O19
    Journal of Magnetism and Magnetic Materials, vol. 222, no. 1-2, pp. 33–38, 2000
  75. Spin states of Mn and Co in LaMn_{0.5}Co_{0.5}O_{3}
    Physical Review B, vol. 62, no. 13, pp. 8608–8610, 2000
  76. Electrical resistivity behavior of substituted perovskite manganates sintered at different temperatures
    Materials Research Bulletin, vol. 34, no. 14-15, pp. 2143–2149, 1999
  77. On the irreversible magnetic behavior of the anisotropic ferromagnetic system SrRuO3
    Physica B: Condensed Matter, vol. 269, no. 3-4, pp. 356–361, 1999
  78. Journal of Physics: Condensed Matter, vol. 10, no. 17, pp. L269–L275, 1999
  79. Journal of Physics: Condensed Matter, vol. 10, no. 29, pp. L487–L493, 1999
  80. Journal of Physics: Condensed Matter, vol. 10, no. 48, pp. 11049–11054, 1999
  81. Journal of Physics: Condensed Matter, vol. 11, no. 21, pp. L217–L221, 1999
  82. Comparison of the low field magnetic behavior of Ln?Ca?MnO? (Ln = La, Pr)
    Solid State Communications, vol. 108, no. 2, pp. 67–70, 1998
  83. A convenient hydrothermal route for the synthesis of MxVOPO4·yH2O (M=Na and K)
    Solid State Ionics, vol. 107, no. 1-2, pp. 53–57, 1998
  84. Low temperature synthesis of Mg4Nb2O9
    Materials Letters, vol. 32, no. 5-6, pp. 347–349, 1997
  85. Low-T_{c} magnetically ordered phase of SrRuO_{3}
    Physical Review B, vol. 56, no. 5, pp. 2324–2327, 1997
  86. Static and dynamic response of cluster glass in La_{0.5}Sr_{0.5}CoO_{3}
    Physical Review B, vol. 54, no. 13, pp. 9267–9274, 1996
  87. Evidence for size effect on insulator-metal transition in C: (H; S)
    Solid State Communications, vol. 99, no. 8, pp. 589–593, 1996