Now showing items 1-4 of 4

    • Bimagnetic nanoparticles with enhanced exchange coupling and energy products 

      Nandwana, Vikas; Chaubey, Girija Shankar; Yano, Kazuaki; Rong, Chuan-Bing; Liu, J. Ping (American Institute of PhysicsDepartment of Physics, The University of Texas at Arlington, 2009-01-06)
      Bimagnetic FePt/Fe3O4 nanoparticles with core/shell or heterodimer structure have been prepared using a sequential synthetic method. The dimension of both FePt and Fe3O4 was tuned by varying the synthesis parameters. The ...
    • Phase Transformation and Magnetic Hardening in Isolated FePt Nanoparticles 

      Liu, J. Ping; Rong, Chuan-Bing; Nandwana, Vikas; Poudyal, Narayan; Chaubey, Girija Shankar (IEEEDepartment of Physics, The University of Texas at Arlington, 2009-03-31)
      Isolated monodisperse L1[subscript]0 FePt nanoparticles coated by carbon were obtained by adding enough surfactants that decomposed into carbon after the chemical synthesis and postannealing of the A1 FePt nanoparticles. ...
    • Shape control of FePt nanocrystals 

      Poudyal, Narayan; Chaubey, Girija Shankar; Rong, Chuan-Bing; Liu, J. Ping (American Institute of PhysicsDepartment of Physics, The University of Texas at Arlington, 2009-04-06)
      : FePt nanocrystals were prepared by simultaneous reduction of platinum acetylacetonate and thermal decomposition of iron pentacarbonyl in properly chosen solvents/surfactants. A variety of FePt nanocrystals, including ...
    • Structural phase transition and ferromagnetism in monodisperse 3 nm FePt particles 

      Rong, Chuan-Bing; Poudyal, Narayan; Chaubey, Girija Shankar; Nandwana, Vikas; Skomski, R.; Wu, Y.Q.; Kramer, Matthew J.; Liu, J. Ping (American Institute of PhysicsDepartment of Physics, The University of Texas at Arlington, 2007-08-30)
      FePt nanoparticles with a size of 3 nm and thermally stable room-temperature ferromagnetism are investigated. The monodisperse nanoparticles were prepared by chemical synthesis and a salt-matrix annealing technique. ...