نتایج جستجو برای: band structure limited velocity

تعداد نتایج: 2139530  

Journal: :Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry 1970

2013
Y. C. Cheng R. J. Silbey D. A. da Silva Filho J. P. Calbert J. Cornil J. L. Brédas

Quantum-chemical calculations coupled with a tight binding band model are used to study the charge carrier mobilities in oligoacene crystals. The transfer integrals for all nonzero interactions in four crystalline oligoacenes ͑naphthalene, anthracene, tetracene, and pentacene͒ were calculated, and then used to construct the excess electron and hole band structures of all four oligoacene crystals ...

2001
F. M. Bufler Yoshinori Asahi Hisao Yoshimura

The output characteristics of state-of-the-art n-MOSFETs with effective channel lengths of 40 and 60 nm have been measured and compared with full-band Monte Carlo simulations. The device structures are obtained by process simulation based on comprehensive secondary ion mass spectroscopy and capacitance–voltage measurements. Good agreement between the measured output characteristics and the full...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده علوم پایه 1387

چکیده ندارد.

2016
Yiran Ma Robert W. Clayton

S U M M A R Y A velocity (Vs) and structure model is derived for the Los Angeles Basin, California based on ambient-noise surface wave and receiver-function analysis, using data from a low-cost, short-duration, dense broad-band survey (LASSIE) deployed across the basin. The shear wave velocities show lateral variations at the Compton-Los Alamitos and the Whittier Faults. The basement beneath th...

Journal: :SSRN Electronic Journal 2007

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1389

in this thesis, phosphorus ylides [phbppy], [no2bppy] and [brbppy] have been synthesized through the formation of phosphonium salt and dihydrogenation, followed by the reaction of pd(oac)2 and the orthopalladated dinuclear complexes [pd(?-cl)(phbppy)]2, [pd(?-cl)(no2bppy)]2 and [pd(?-cl)(brbppy)]2 have been produced. the reaction of dinuclear complexes and bidentate ligands [l = bipy (2,2-bipyr...

Journal: :Optics express 2001
D Hermann M Frank K Busch P Wolfle

We introduce a novel algorithm for band structure computations based on multigrid methods. In addition, we demonstrate how the results of these band structure calculations may be used to compute group velocities and effective photon masses. The results are of direct relevance to studies of pulse propagation in such materials.

Journal: :journal of artificial intelligence in electrical engineering 2013
abolfazl abbaspour hamed alipour banaei alireza andalib

we have designed a new type of optical channel drop filter (cdf) based on two dimensionaltriangular lattice photonic crystals. cdf operation is based on coupling to the photonic crystalwaveguide. the proposed structure is optimized to work as a cdf for obtaining the cdfcharacteristics and band structure of the filter the finite difference time domain (fdtd) method andplane wave expansion (pwe) ...

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