Controlling the anisotropy and domain structure with oblique deposition and substrate rotation

Abstract

The ultraviolet photoluminescence of ZnO/ZnGa 2 O 4 composite layer grown by the thermal oxidation of ZnS with gallium was investigated by the time-resolved photoluminescence as a function of measuring temperature and excitation power. With increase of excitation power, the D 0 X emission is easily saturated than the DAP emission from ZnO/ZnGa 2 O 4 composite layer, and which is dramatically enhanced as compared with that from pure ZnO layer grown without gallium. The radiative recombination process with ultra-long lifetime controlled the carrier recombination of ZnO/ZnGa 2 O 4 composite layer. C 2014 Author(s)

Size and shape dependence study of magnetization reversal in magnetic antidot lattice arrays

“…This angle leads to shadow effect during deposition and finally produces an in-plane magnetic anisotropy. It has been already shown by other groups that such shadow deposition usually leads to a uniaxial anisotropy [25,26]. A post-deposition lift off with acetone was performed on the prepared films to prepare the MAL arrays.…”

“…It should be noted that the antidot lattice orientation is at 60°with respect to the easy axis for all the antidot samples. This is due to the fact that the samples were prepared at oblique incidence where the Co target is at 30°w ith respect to the normal of the substrate table in the sputtering chamber [26,31]. From coercivity vs. angle between easy axis and magnetic field as shown in Fig.…”

Tuning spinterface properties in iron/fullerene thin films

“…Due to the geometry of our deposition chamber, Fe plume was at an angle of 30 • with respect to the substrate normal. Due to the oblique angle of deposition, uniaxial anisotropy is induced in the system [25,26,17,18,28,29,30]. It has been discussed in previous reports that the grains of the material form chain like structure along the perpendicular to the in-plane projection of the plume direction.…”

“…Along this direction, an elongation in the grain structure is expected which in turn induces a uniaxial anisotropy in the system The black colored open circles and the red line correspond to the measured data and the fit to equation 2, respectively. [25,26,17,18,28,29,30]. The origin of the oblique angle of deposition induced uniaxial anisotropy is the long range dipolar interaction between the grains [25,26,17].…”

Tuning high frequency magnetic properties and damping of FeGa, FeGaN and FeGaB thin films

“…[26][27][28] The microstructure, soft magnetism, microwave properties and damping factor for the three series of films were investigated. The addition of N element reduced the grain size of FeGa films, while the involved B element changed the structure of FeGa films from the polycrystalline to amorphous phase.…”