Báo cáo hóa học: " Negative Differential Resistance in ZnO Nanowires Bridging Two Metallic Electrodes" ppt

... EXPRESS Negative Differential Resistance in ZnO Nanowires Bridging Two Metallic Electrodes Yang Zhang • Ching-Ting Lee Received: 14 May 2010 / Accepted: 3 June 2010 / Published online: 13 June 2010 Ó The ... resonant tunneling mechanism. Keywords Negative differential resistance Á ZnO nanowires Á Electrical transport Introduction In recent years, there has been a...

Ngày tải lên: 21/06/2014, 17:20

... 80 0 200 400 600 800 1000 (1 1 2) InN (1 0 3) InN (1 1 0) InN (1 0 1) InN (0 0 2) InN Aluminium Aluminium Intensity (a.u.) θθ−−22θθ (deg) Aluminium (1 0 0) InN Fig. 2 XRD spectrum of the InN NWs grown at ... (T G ) over a 30-min interval in a continuous flow of NH 3 at 250 sccms. Upon reaching T G the flow of NH 3 was maintained at 250 sccms for a further 60 min in order to grow the I...

Ngày tải lên: 22/06/2014, 01:20

... reach the probing energy states lower to the initial excitation level providing the maximum coupling effi- ciency which results in the maximum induced change in the absorption. Close examination of ... mechanism becomes more important with increasing probing wavelength for the 5-nm film (see amplitude component represented by parameter-A in Table 1). With increasing probing wavelengths, t...

Ngày tải lên: 22/06/2014, 19:20

... for single-crystal Si(100) obtained during nanoindentation with a Berkovich indenter showing two ‘‘pop- in ’ events during loading and, one ‘‘pop-out’’ event during unloading. And, the inset ... (dark thick lines in the photograph) clearly indicate that during the indentation the rapidly increasing dislocations can glide collectively along the easy directions. In the present case, in...

Ngày tải lên: 22/06/2014, 19:20

... automati- callycarriesovertoanyCAT(κ)spacesforκ<0, and, in particular, to R-trees. 3. Fixed point theorems We use the following continuation principle due to Granas in the proof of our first result. Theorem 3.1 [7]. Let U be a domain in a complete ... between two vertices a and b to be the length of the shortest path joining them. With this metric, the edge-preserving map- pings bec...

Ngày tải lên: 23/06/2014, 00:20

... potential sites of involvement. When interpreting radiographs, especially in an area as difficult as the coracoid, it is important to maintain an index of suspicion for underlying pathologic processes, especially ... shoulder injury. She sustained no other injuries in the fall. She noted no other previous complaints with regard to her left shoulder. She took Naprosyn for pain relief. Over...

Ngày tải lên: 20/06/2014, 04:20

... allow us to infer causality. Cautions should be exer- cised when interpreting and generalizing the current findings in other populations as the present sample con- sisted of mainly Chinese female ... and summed, yielding “Disability Points” . Based on the Pain Intensity Score and Disability Points, CPG classifies chronic pain into five hierarchical grades: Grade Zero (pain free), Grade I .....

Ngày tải lên: 18/06/2014, 19:20

... settings are put in place especially now that MDR and XDR TB are increasingly becoming major concerns. Although TB Infection control guidelines for resource lim- ited settings have been in place ... Tuberculosis case finding and preventive therapy in an HIV voluntary counseling and testing centre in Uganda. Int J Tuberc Lung Dis 2006, 10(7):761-767. 16. Girardi Enrico, Sabin Caroline...

Ngày tải lên: 20/06/2014, 08:20

... following two conditions are satisfied (i) (x, y) T is piecewise continuous with first kind disc ontinuity at the points t k , k Î K. Moreover,(x, y) T is right continuous at each discontinuity point. (ii) ... is formulated and investigated. By establishing an integro -differential inequality with impulsive initial conditions and employing M-matrix theory, some sufficient conditions ensuri...

Ngày tải lên: 21/06/2014, 00:20

... below). For information about publishing your research in Advances in Difference Equations go to http://www.advancesindifferenceequations.com/authors/instructions/ For information about other SpringerOpen ... Obukhovskii, V, Zecca, P: Condensing Multivalued Maps and Semilinear Differential Inclusions in Banach Spaces, de Gruyter Series in Nonlinear Anal. Appl. 7. Walter de Gruyter, Ber...

Ngày tải lên: 21/06/2014, 17:20