Výsledky vyhledávání - "L. G. Gerchikov"

Collective excitations in optical spectra of nanosize exciton and electron-positron droplets

Publikováno v: Journal of Experimental and Theoretical Physics. 119:891-901

We study the optical properties of nanosize two-component Fermi systems. The photoabsorption spectra in Fermi systems containing not more than 102 pairs of oppositely charged particles are calculated. The main focus is on the role of collective plasm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b67277cdebf2c77c79c205d148e57adc
https://doi.org/10.1134/s1063776114110156

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Stability and properties of finite Fermi systems of particles with different masses

Autor: L. G. Gerchikov, A. N. Ipatov

Publikováno v: Journal of Experimental and Theoretical Physics. 118:93-103

The dependence of the properties of finite two-component Fermi systems containing two types of oppositely charged particles on the ratio of their masses has been studied. A theoretical model for the quantum-mechanical description of a system containi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::729b98ecab7b9ae09f68f7935205ad84
https://doi.org/10.1134/s106377611401004x

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The role of electron correlations in the double ionization of helium by fast protons

Autor: E. M. Lobanova, S. A. Sheinerman, L. G. Gerchikov

Publikováno v: Journal of Experimental and Theoretical Physics. 105:486-494

We consider the double ionization (DI) of a helium atom by fast protons and study the role of electron correlations in this process. We develop a quantum-mechanical approach that takes into account the interaction of the emitted electrons in continuu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ff86caf513354c0d6010ecd143ea256f
https://doi.org/10.1134/s1063776107090038

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Electron correlation in double ionization of excited helium by fast ion impact

Autor: Michael Schulz, L. G. Gerchikov, S. A. Sheinerman, Joachim Ullrich, R. Moshammer

Publikováno v: Journal of Physics B-Atomic Molecular and Optical Physics

The correlation function between two emitted electrons has been calculated as a function of their momentum difference for double ionization of 1s2s excited He atoms by fast ion impact. A simple quantum mechanical approach is developed to take into ac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afe039b8ba3bc3aacbfc68918bf33c16
https://doi.org/10.1088/0953-4075/35/12/313

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Resonance enhancement of the photoemission from semiconductors with negative electron affinity

Autor: L. G. Gerchikov, A. V. Subashiev

Publikováno v: Journal of Applied Physics. 80:6008-6012

The variation of photoemission from negative electron affinity semiconductor surface with the position of the surface Fermi level is theoretically studied. Resonance maxima both in photoyield and surface recombination rate (when the depth and the wid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ff0f138a89263de6ba6bb83d59b9e472
https://doi.org/10.1063/1.363599

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Production of bound states in processes of AIS excitation by positive particles

Autor: L G Gerchikov, S A Sheinerman

Publikováno v: Journal of Physics B: Atomic, Molecular and Optical Physics. 28:2113-2125

A post-collision interaction (PCI) is considered in resonant processes of an excitation of an autoionizing (AI) state by a positive projectile followed by its decay. The general analytical formulae for an amplitude and a cross section are obtained fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1a2cdfed790a0c4d84322f59906044e3
https://doi.org/10.1088/0953-4075/28/11/011

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Emission of Polarized Electrons from Semiconductor Superlattices with Distributed Bragg Reflector

Autor: Yu. A. Mamaev, J. E. Clendenin, V. V. Kuz’michev, L. G. Gerchikov, T. Maruyama, V. S. Mikhrin, V. M. Ustinov, D. A. Vasiliev, A. P. Vasiliev, Yu. P. Yashin, A. E. Zhukov, J. S. Roberts, Marília Caldas, Nelson Studart

Publikováno v: AIP Conference Proceedings.

Resonance enhancement of the quantum efficiency of new polarized electron photocathodes based on a short‐period strained superlattice structures is reported. The superlattice is a part of an integrated Fabry‐Perot optical cavity. We demonstrate t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9acbf3576d08d1c126900b318c8c7506
https://doi.org/10.1063/1.3295368

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Optimization of Semiconductor Superlattice for Spin Polarized Electron Source

Autor: L. G. Gerchikov, Yu. A. Mamaev, V. V. Kuz’michev, Yu. P. Yashin, V. S. Mikhrin, A. P. Vasiliev, A. E. Zhukov, Donald G. Crabb, Yelena Prok, Matt Poelker, Simonetta Liuti, Donal B. Day, Xiaochao Zheng

Publikováno v: AIP Conference Proceedings.

Optimized AlInGaAs/AlGaAs superlattice with strained quantum wells has been developed, fabricated and studied. The choice of hetero‐layer composition and thicknesses is based on calculations of Sl’s band energy spectrum, photoabsorption spectrum

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a859229a401b0fac951a91e3c70aaf3c
https://doi.org/10.1063/1.3215585

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