On the Epitaxial Growth of Single-Crystal Metal Films Free of Impurities

Atomic-scale investigation of MgO growth on fused quartz using angle-dependent NEXAFS measurements

“…Generally, the spectral features centered at 534.1 AE 0.1, 539.7 AE 0.1, 541.8 AE 0.1, 547.8 AE 0.1, and 558.6 AE 0.1 eV are characteristics of the O K-edge NEXAFS spectrum of MgO nanoparticle and thin lms, as reported by a number of authors. [55][56][57][58][59][60] In Fig. 2 (le panel), the spectral features around these positions are denoted as A o , A 1 , A 2 , A 3 , and A 4 .…”

“…Though a number of methods, such as pulsed laser deposition, 52 molecular beam epitaxy, 53 atomic layer deposition, 54 and e-beam evaporation methods 55 are being developed for depositing MgO thin films, the radio-frequency (rf) sputtering method is considered the most suitable for an insulating oxide like MgO. 56–58 Thus, the present work was motivated to investigate the growth of MgO on a fused quartz substrate using the rf-sputtering method together with angle-dependent NEXAFS measurements.…”

Superstructures on Spherical Gold Crystals

“…Other rearrangements at the surface were found earlier on Si and Ge [3]. On gold the so called (001) (5 X 1) (later on and better (5 X 20)) structure was attributed to the clean gold [2], or it was supposed to be stabilized by impurities [1,4], Later investigations did not solve the problem completely, but at least two hexagonal nets of Au atoms were supposed with a mutual twist of 90°. Anomalous structures were also observed on other crystallographic surfaces of gold.…”

Approaches to synthesize MgO nanostructures for diverse applications

“…E -beam evaporation method utilizes evaporation of material target with e-beam energy. This method is used to grow MgO thin films on air-cleaved (001) surfaces of LiF, NaCI, and KCI using a 6-kW electron gun [ 169 , 170 , 171 ]. It observed that MgO on (001) surfaces of LiF, NaCI, and KCI grows with parallel orientation in the temperature range 25–250 °C [ 172 ].…”