نتایج جستجو برای: strained programming

تعداد نتایج: 334916  

2006
E. Ungersboeck H. Kosina

The effect of degeneracy both on the phononlimited mobility and the effective mobility including surfaceroughness scattering in unstrained and biaxially tensile strained Si inversion layers is analyzed. We introduce a new method for the inclusion of the Pauli principle in a Monte Carlo algorithm. We show that incidentally degeneracy has a minor effect on the bulk effective mobility, despite non...

Journal: :The Quarterly Journal of Mechanics and Applied Mathematics 2005

1999
R. A. Beach T. C. McGill

We have calculated the piezoelectric field and charge distribution for various III-nitride heterostructures. Our calculations include strain energy minimization and doping effects, and are presented to show the magnitude of piezoelectric effects in strained layers. We compare our calculated results to device results where available. These include the two-dimensional electron gas in heterojuncti...

Journal: :ACS applied materials & interfaces 2015
Stephan Wirths Daniela Stange Maria-Angela Pampillón Andreas T Tiedemann Gregor Mussler Alfred Fox Uwe Breuer Bruno Baert Enrique San Andrés Ngoc D Nguyen Jean-Michel Hartmann Zoran Ikonic Siegfried Mantl Dan Buca

We present the epitaxial growth of Ge and Ge0.94Sn0.06 layers with 1.4% and 0.4% tensile strain, respectively, by reduced pressure chemical vapor deposition on relaxed GeSn buffers and the formation of high-k/metal gate stacks thereon. Annealing experiments reveal that process temperatures are limited to 350 °C to avoid Sn diffusion. Particular emphasis is placed on the electrical characterizat...

Journal: :Chemical communications 2011
Henning Stöckmann André A Neves Henry A Day Shaun Stairs Kevin M Brindle Finian J Leeper

Two in one--We show here that the highly strained trans,trans-diolefin (E,E)-1,5-cyclooctadiene can perform efficiently two different click reactions at fast reaction rates. It is capable of first undergoing [3+2] cycloadditions with 1,3-dipoles at a reaction rate comparable to that of strained cyclooctynes. The resulting cycloadduct can then perform a much faster inverse-electron-demand Diels-...

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2014
M Oliva-Leyva Gerardo G Naumis

The density of states and the AC conductivity of graphene under uniform strain are calculated using a new Dirac Hamiltonian that takes into account the main three ingredients that change the electronic properties of strained graphene: the real displacement of the Fermi energy, the reciprocal lattice strain and the changes in the overlap of atomic orbitals. Our simple analytical expressions for ...

Journal: :Physical review letters 2014
Rai Moriya Kentarou Sawano Yusuke Hoshi Satoru Masubuchi Yasuhiro Shiraki Andreas Wild Christian Neumann Gerhard Abstreiter Dominique Bougeard Takaaki Koga Tomoki Machida

The spin-orbit interaction (SOI) of a two-dimensional hole gas in the inversion symmetric semiconductor Ge is studied in a strained-Ge/SiGe quantum well structure. We observe weak antilocalization (WAL) in the magnetoconductivity measurement, revealing that the WAL feature can be fully described by the k-cubic Rashba SOI theory. Furthermore, we demonstrate electric field control of the Rashba S...

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