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BiLaFeO (BLF) and BiLaFeZrO (BLFZ) ceramics were synthesized by conventional solid state reaction method. X-ray diffraction studies and Rietveld refinements indicated that both of the samples possessed rhombohedrally distorted perovskite structure. The average grain size of BLFZ (~700 nm) was greatly reduced in comparison with BLF (~6 μm). The remanent magnetization of BLFZ was greatly enhanced compared with BLF. The enhancement of remanent magnetization was attributed to the collapse of the spiral spin structure. Both samples showed exchange bias. The possible reason for the appearance of exchange bias was attributed to the inhomogeneity in doping. The measurements of magnetization as a function of temperature indicated that BLF and BLFZ had almost the same magnetic transition temperature (~355 °C). [ABSTRACT FROM AUTHOR]

ZnO:Gd films with (100) preferred orientation were deposited on glass substrates by reactive radio frequency magnetron sputtering with the deposition temperature of 100-500 °C. The (100) texture of the ZnO:Gd film is enhanced with the increase of deposition temperature. The average transmittance of the ZnO:Gd films in the visible region is over 83% and the film deposited at 500 °C exhibits the highest transmittance (90%). The optical band gap of the ZnO:Gd films increases from 3.213 to 3.227 eV as the deposition temperature increases. The structural defects induced by Gd doping lead to the weak band gap related emission and the strong defects related emissions of the films. [ABSTRACT FROM AUTHOR]

The article explores the artificial visual systems enabled by quasi–two-dimensional electron gases in oxide super lattice nanowires. It mentions the rapid development of artificial intelligence techniques ignites the emerging demand on accurate perception and understanding of optical signals from external environments via brain-like visual systems.