An approach by which single crystal a-GaN can be grown laterally over oxidized AlAs (AlOx) formed on Si substrates is demonstrated. Regular a-Ga2-O3 stripe templates, spatially separated by AlOx , on which subsequent GaN growth is selectively seeded are formed. Since the boundary between the stripe template and AlOx is nominally planar, two pyramidal planes on separated GaN can merge by growing...

We present ground-state calculations for laterally coupled quantum dots containing 2, 4, and 8 electrons. As our emphasis is on spin effects our results are obtained by applying spin-density functional theory (SDFT). By varying the distance between the centers of the coupled quantum dots, the transition from weak to strong coupling situation is realized. For the 2-electron system we also apply ...

Laterally asymmetric vibrotactile stimuli produce anisotropic or direction-dependent friction force that function as a friction display system [1]. In this study, we showed that laterally symmetric vibrotactile stimuli increase friction perception by a similar principle. We measured the frictional forces between a sliding finger pad and a contactor laterally vibrating at 3 or 5 H. We found that...

In the present work, averaged fidelity is introduced as steering parameter. According to definitions of from Alice Bob, a general scheme for designing linear criteria developed high-dimensional system. For given set measurements on Bob's side, two quantities, so-called nonsteering thresholds, can be defined. If measured exceeds these state shared by and Bob steerable performed are also verified...