Single element Co and Fe thin films and Co/Fe/Co trilayers with constant Co-layer thickness were e-beam evaporated in UHV. The samples show a nano-crystalline nature. The trilayers display a rigid composite magnet behavior, i.e., a single-phase-like hysteresis loop. The Co single film and the Co/Fe/Co trilayers show a well-defined uniaxial in-plane anisotropy. In the trilayers, anisotropy is enhanced on increasing Fe-layer thickness. This phenomenon is understood in terms of competing surface and volume contributions from Co/Fe interface and Co magnetocrystalline anisotropy.
Magnetization processes in exchange-coupled nano-crystalline Fe/Co planar systems / Carbucicchio, Massimo; Ghidini, Massimo; M., Rateo; Solzi, Massimo. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - 290-291:(2005), pp. 175-178. [10.1016/j.jmmm.2004.11.175]
Magnetization processes in exchange-coupled nano-crystalline Fe/Co planar systems
CARBUCICCHIO, Massimo;GHIDINI, Massimo;SOLZI, Massimo
2005-01-01
Abstract
Single element Co and Fe thin films and Co/Fe/Co trilayers with constant Co-layer thickness were e-beam evaporated in UHV. The samples show a nano-crystalline nature. The trilayers display a rigid composite magnet behavior, i.e., a single-phase-like hysteresis loop. The Co single film and the Co/Fe/Co trilayers show a well-defined uniaxial in-plane anisotropy. In the trilayers, anisotropy is enhanced on increasing Fe-layer thickness. This phenomenon is understood in terms of competing surface and volume contributions from Co/Fe interface and Co magnetocrystalline anisotropy.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
