Browsing Department of Physics by Subject "Particle size"

Now showing items 1-4 of 4

    • Curie temperatures of annealed FePt nanoparticle systems 

      Rong, Chuan-Bing; Li, Yang; Liu, J. Ping (American Institute of PhysicsDepartment of Physics, The University of Texas at Arlington, 2007-03-28)
      The chemically synthesized FexPt100-x nanoparticles with controlled compositions were annealed to transfer the disordered face-centered-cubic structure to the ordered structure. It was found that the L10 FePt structure can ...

    • Effects of particle size and composition on coercivity of Sm–Co nanoparticles prepared by surfactant-assisted ball milling 

      Poudyal, Narayan; Rong, Chuan-Bing; Liu, J. Ping (American Institute of PhysicsDepartment of Physics, The University of Texas at Arlington, 2010-04-15)
      The correlation between the recoil loop openness and the activation volume has been studied for the SmCo5/α-Fe nanocomposite powder material prepared by mechanical alloying. The α-Fe phase content in the nanocomposite ...

    • Microstructures and magnetic alignment of L10 FePt nanoparticles 

      Nandwana, Vikas; Kang, Shishou; Shi, Shifan; Jia, Zhiyong; Thompson, G. R.; Nikles, David E.; Harrell, J. W.; Poudyal, Narayan; Liu, J. Ping (AIP, 2009)
      Chemically ordered FePt nanoparticles were obtained by high temperature annealing a mixture of FePt particles with NaCl. After the NaCl was removed with de-ionized water, the transformed FePt nanoparticles were redispersed ...

    • 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 ...