Anisotropy and scaling of YBa2Cu3O7−x thin films

architecture and engineering of nanoscale sculptured thin films and determination of their properties

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Scaling Of Ferroelectric Properties In Thin Films

A fundamental issue in ferroic systems (ferromagnetic and ferroelectric) is the scaling of the order parameter (magnetization or polarization) with size. Specifically, in ferroelectric thin films, deviations in the polarization can occur due to: (i) competition between thermal vibrations and the correlation energy (which aligns the dipoles); (ii) damage during fabrication. These deviations will...

Annealed Co thin films: Pit formation and magnetic anisotropy

We present a study of the morphological and magnetic transformation of hcp~0001! Co thin films, grown via sputtering on Al2O3(112̄0), which occurs when they are annealed in vacuum in the temperature range of 500 °C,TA,600 °C. In this temperature range, the films undergo a reentrant smoothening transition. For very thin films ~thickness t,20 nm!, this coincides with a fcc~111! to fcc~001! recryst...

Uniaxial anisotropy of organic thin films determined by ellipsometry

Reorientation of magnetic anisotropy in obliquely sputtered metallic thin films

Reorientation in the magnetic anisotropy as a function of film thickness has been observed in Co-Ni and Co thin films, obliquely sputtered on a polyethylene terephthalate substrate at a large incidence angle ~70°!. This effect is a consequence of the low magnetocrystalline anisotropy of the films ~fcc structure of Co! and changes in microstructure from nuclei to columns according to the thickne...