Two-dimensional XY -like amorphous Co68Fe24Zr8/Al70Zr30 multilayers

Structural- and magnetic properties of Co68Fe24Zr8/Al2O3 multilayers

The structural and magnetic properties of Co68Fe24Zr8/Al2O3 multilayers grown by using magnetron sputtering were investigated with x-ray reflectivity, transmission electron microscopy and magneto-optical Kerr effect. The Co68Fe24Zr8 form amorphous islands when the nominal thickness of the Co68Fe24Zr8 layers is 10 Å, exhibiting an isotropic superparamagnetic behavior. Continuous layers with most...

Spin and orbital moment in amorphous Co68Fe24Zr8 layers

Structure and vibrational dynamics of interfacial Sn layers in SnÕSi multilayers

The structure and vibrational dynamics of room-temperature-grown nanoscale Sn/amorphous (a-!Si multilayers have been studied by x-ray diffraction, Raman scattering, Sn Mössbauer spectroscopy, and Sn nuclear-resonant inelastic x-ray scattering ~NRIXS! of synchrotron radiation. With increasing Sn-layer thickness, the formation of b-Sn was observed, except at the Sn/Si interfaces, where a 10-Å-thi...

Two-dimensional confinement of 3d{1} electrons in LaTiO_{3}/LaAlO{3} multilayers.

We report spectroscopic ellipsometry measurements of the anisotropy of the interband transitions parallel and perpendicular to the planes of (LaTiO3)n(LaAlO3)5 multilayers with n=1-3. These provide direct information about the electronic structure of the two-dimensional (2D) 3d{1} state of the Ti ions. In combination with local density approximation, including a Hubbard U calculation, we sugges...

Cumulative disorder and x-ray line broadening in multilayers.

We have measured the high-angle x-ray diffraction from crystalline Pb-amorphous Ge multilayers. The experimental data in conjunction with a model calculation for the fluctuation in amorphous-layer thickness show that this fluctuation is larger than about 5%. A smaller thickness variation implies the existence of high-angle peaks which have not been observed in any amorphous-crystalline multilay...