Báo cáo hóa học: " Electronic structures of GaAs/AlxGa1-xAs quantum double rings" ppt

... The different doping positions of S atom are provided. We present the accurate values of workfunction of S-doped C-SWNT and analyze the change of the electronic structures without external electric ... that the electronic structures of S-doped C-SWNT depend strongly on the geometrical configuration of S atom in the C-SWNT. Under the external electric field, the electronic...

Ngày tải lên: 21/06/2014, 18:20

... envelope function theory, the electronic structures of GaAs/Al x- Ga 1-x As quantum double rings (QDRs) are studied. Our model can be used to calculate the electronic structures of quantum wells, wires, ... here are useful for the study of the electron correlations and the effects of magnetic fields in QDRs. Keywords Electronic structures Æ GaAs Æ Quantum double r...

Ngày tải lên: 22/06/2014, 22:20

... widely applied in the calculation of the electronic structures and binding energy levels of a hydrogenic acceptor impurity in semiconductor nano -structures of other shapes and other semiconductor O A B O A B C 012345 20 30 25 35 40 (a) E b ... The electronic structure and binding energy of a hydrogenic acceptor impurity in 2, 1, and 0-dimensional semiconductor nano -structure...

Ngày tải lên: 22/06/2014, 18:20

... obtain a wide sample of verbal descriptions of music (in the form of tags) that go beyond the commonly studied concept of genre, and from this the underlying semantic structure of this sample is ... or links as a part of the normal use of popular online services, so that the tags then become a form of categorization in themselves. Tags are usually semantic representations of...

Ngày tải lên: 21/06/2014, 17:20

... level of CDK4 expression was an independent prognostic indicator (P < 0.001) for the survival of patients with lung cancer. Use of lentiviral-mediated shRNA to inhibit the expression of CDK4 ... Research Institute of Southern Medical University, 510515, Guangzhou, PR China 3 Department of Pathology, Medical College of Guangzhou, 510450, Guangzhou, PR China Full list of auth...

Ngày tải lên: 20/06/2014, 03:20

... including micro-nanoelectronics, sensors and transparent electro- nics. For applications in electronics, the reliability of processing of graphene is a major obstacle. The proces- sing of graphene requires ... in electronic devices. Reliable processes for device fabrication are crucial prerequisites for this. We developed a large area of CVD synthesis and transfer of graphene film...

Ngày tải lên: 21/06/2014, 03:20

... and catheter ablation of atrioventricular and atriofascicular accessory pathways: evidence of decremental conduction and the anatomic structure of the Mahaim pathway. Journal of Cardiovascular Electrophysiology ... atrial fibrillation. Radiofrequency ablation remains the treatment of choice for this disorder. Mapping the accessory fibers identifies the proximal and distal insertion...

Ngày tải lên: 21/06/2014, 05:20

... type of QDs in Ref. [30]. Conclusions The local droplet etching of nanoholes in semiconductor surfaces represents a powerful new degree of freedom for the design of novel semiconductor heterostructures ... previous publications. A first functionalization of the nanoholes, the fabrication of a novel type of very uniform, strain-free GaAs QDs by filling of LDE nanoholes in AlGaAs...

Ngày tải lên: 22/06/2014, 00:20

... of Electronics Information Engineering, Tianjin Key Laboratory of Film Electronic and Communication Devices, Tianjin University of Technology, Tianjin, 300384, China 2 Singapore Institute of ... where N H is the number of rows in the interconnect bundle, N W is the number of columns, and N CNT is the total number of CNTs. Since a SWCNT bundle consists of several indiv...

Ngày tải lên: 22/06/2014, 00:20