• DocumentCode
    3527873
  • Title

    Crystallographic alignment of nanoparticles during self-assembly

  • Author

    Kan, Shihai ; Sachan, Madhur ; Kirchhoff, Jennifer ; Majetich, Sara

  • Author_Institution
    Dept. of Phys., Carnegie Mellon Univ., Pittsburgh, PA, USA
  • fYear
    2005
  • fDate
    4-8 April 2005
  • Firstpage
    177
  • Lastpage
    178
  • Abstract
    Here we report on the partial alignment of equiaxed hcp Co and CoFe2O4 nanoparticles. In order to crystallographically orient the particles, Brownian rotation must dominate Neel rotation during array formation. The Neel relaxation rate is proportional to exp[KV/kT], where V is the particle volume and kT is the thermal energy. The Brownian relaxation rate is proportional to the effective viscosity and to V/kT.
  • Keywords
    cobalt; cobalt compounds; ferrites; ferromagnetic materials; magnetic particles; nanoparticles; self-assembly; viscosity; Brownian relaxation rate; Brownian rotation; Co; CoFe2O4; Neel relaxation rate; Neel rotation; array formation; effective viscosity; equiaxed hcp Co nanoparticles; equiaxed hcp CoFe2O4 nanoparticles; partial alignment; particle volume; thermal energy; Anisotropic magnetoresistance; Cobalt; Crystallography; Heating; Magnetic anisotropy; Nanoparticles; Perpendicular magnetic anisotropy; Phased arrays; Self-assembly; Temperature;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
  • Print_ISBN
    0-7803-9009-1
  • Type

    conf

  • DOI
    10.1109/INTMAG.2005.1463517
  • Filename
    1463517
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3527873