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Zelenograd, Russia

National Research University Electronic Technology — is a Russian technical university in the field of microelectronics and one of 29 National Research Universities. University is founded in 1965 as Moscow Institute of Electronic Technology and located in Zelenograd, Moscow . The university was often considered the center of the Soviet Silicon Valley. Wikipedia.

Tokatly I.V.,Ikerbasque | Tokatly I.V.,European Theoretical Spectroscopy Facility | Tokatly I.V.,Moscow Institute of Electronic Technology | Sherman E.Y.,Ikerbasque | Sherman E.Y.,University of the Basque Country
Annals of Physics | Year: 2010

We develop a gauge theory for diffusive and precessional spin dynamics in a two-dimensional electron gas. Our approach reveals a direct connection between the absence of the equilibrium spin current and a strong anisotropy in the spin relaxation: both effects arise if spin-orbit coupling is reduced to a pure gauge SU(2) field. In this case, the spin-orbit coupling can be removed by a gauge transformation in the form of a local SU(2) spin rotation. The resulting spin dynamics is exactly described in terms of two kinetic coefficients: the spin diffusion and electron mobility. After the inverse transformation, full diffusive and precessional spin density dynamics, including the anisotropic spin relaxation, formation of stable spin structures, and spin precession induced by a macroscopic current are restored. Explicit solutions of the spin evolution equations are found for the initially uniform spin density and for stable, nonuniform structures. Our analysis demonstrates a universal relation between the spin relaxation rate and spin-diffusion coefficient. © 2010 Elsevier Inc. Source

Lavrov I.V.,Moscow Institute of Electronic Technology
Semiconductors | Year: 2011

The effective conductivity tensor of a polycrystalline medium with a texture has been calculated based on the method of self-consistent solution and the theory of rotation group representations. The medium consists of a single-type of biaxial spherical crystallites, oriented in space according to some probabilistic law, which implies the existence of uniaxial texture. An analytical solution is obtained for two cases: (i) weakly anisotropic crystallites and (ii) a small spread in the orientations of one of the crystallite axes with respect to the texture axis. © 2011 Pleiades Publishing, Ltd. Source

Afonin S.M.,Moscow Institute of Electronic Technology
Russian Engineering Research | Year: 2012

The use of nano- and micro-scale piezomotors in precision electromechanical systems is considered. The deformation of the piezoconverter corresponding to its stress state is investigated. © 2012 Allerton Press, Inc. Source

Lapshin R.V.,Moscow Institute of Electronic Technology
Applied Surface Science | Year: 2015

The method of distributed calibration of a probe microscope scanner consists in a search for a net of local calibration coefficients (LCCs) in the process of automatic measurement of a standard surface, whereby each point of the movement space of the scanner can be defined by a unique set of scale factors. Feature-oriented scanning (FOS) methodology is used to implement the distributed calibration, which permits to exclude in situ the negative influence of thermal drift, creep and hysteresis on the obtained results. The sensitivity of LCCs to errors in determination of position coordinates of surface features forming the local calibration structure (LCS) is eliminated by performing multiple repeated measurements followed by building regression surfaces. There are no principle restrictions on the number of repeated LCS measurements. Possessing the calibration database enables correcting in one procedure all the spatial distortions caused by nonlinearity, nonorthogonality and spurious crosstalk couplings of the microscope scanner piezomanipulators. To provide high precision of spatial measurements in nanometer range, the calibration is carried out using natural standards - constants of crystal lattice. The method may be used with any scanning probe instrument. © 2015 Elsevier B.V. All rights reserved. Source

Lapshin R.V.,Moscow Institute of Electronic Technology
Applied Surface Science | Year: 2016

A description is given of a three-dimensional box-shaped graphene (BSG) nanostructure formed/uncovered by mechanical cleavage of highly oriented pyrolytic graphite (HOPG). The discovered nanostructure is a multilayer system of parallel hollow channels located along the surface and having quadrangular cross-section. The thickness of the channel walls/facets is approximately equal to 1 nm. The typical width of channel facets makes about 25 nm, the channel length is 390 nm and more. The investigation of the found nanostructure by means of a scanning tunneling microscope (STM) allows us to draw a conclusion that it is possible to make spatial constructions of graphene similar to the discovered one by mechanical compression, bending, splitting, and shifting graphite surface layers. The distinctive features of such constructions are the following: simplicity of the preparation method, small contact area between graphene planes and a substrate, large surface area, nanometer cross-sectional sizes of the channels, large aspect ratio. Potential fields of application include: ultra-sensitive detectors, high-performance catalytic cells, nanochannels for DNA manipulation, nanomechanical resonators, electron multiplication channels, high-capacity sorbents for hydrogen storage. © 2015 Elsevier B.V. All rights reserved. Source

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