• DocumentCode
    1533249
  • Title

    Magnetic probing of tunable Eu3+ local site in organic-inorganic nanohybrids

  • Author

    Amaral, V.S. ; Carlos, L.D. ; de Zea Bermudez, V.

  • Author_Institution
    Dept. de Fisica, Aveiro Univ., Portugal
  • Volume
    37
  • Issue
    4
  • fYear
    2001
  • fDate
    7/1/2001 12:00:00 AM
  • Firstpage
    2935
  • Lastpage
    2937
  • Abstract
    The magnetic properties of sol-gel derived Eu3+-doped organic/inorganic hybrid nanocomposites were studied. These hybrids consist of poly(oxyethylene)-based chains of variable length grafted onto siloxane nanodomains by urea cross-linkages. Results are presented for two chain length series, for which the local environment of Eu3+ ions and the urea-urea interactions induce distinct magnetic behaviors. For high Eu3+ content strong thermal irreversibility effects are found, due to the presence of Eu3+ magnetic interactions in the nanodomains
  • Keywords
    composite materials; crystal field interactions; europium; magnetic susceptibility; nanostructured materials; sol-gel processing; Eu3+-doped organic/inorganic hybrid nanocomposite; crystal field; di-ureasil; dipolar interaction; magnetic properties; poly(oxyethylene) chain length; siloxane nanodomain; sol-gel synthesis; thermal irreversibility; tunable local site; urea cross-linkage; urea-urea interaction; Biological materials; Magnetic domains; Magnetic materials; Magnetic properties; Magnetosphere; Nanobioscience; Nanocomposites; Optical materials; Polymers; Temperature;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/20.951352
  • Filename
    951352
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1533249