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2018: Recent submissions

Now showing items 41-60 of 145

Исследование динамики электронной локализации в тетрамерном металл-углеродном нанокластере c учётом эффектов поляризации

ЯЛТЫЧЕНКО, О. В.; КАНАРОВСКИЙ, Е. Ю.; ГОРИНЧОЙ, Н. Н. (Tehnica UTM, 2018)

A quantum mechanical model is proposed for describing the dynamic localization of a generalized electron in the tetrameric nanoclusters in an external low-frequency electric field, taking into account the electron-vibrational ...
Quantum interference of surface states in nanowires of topological insulator BI0.83SB0.17

KONOPKO, L. A.; NIKOLAEVA, A. A.; HUBER, T. E.; ROGACKI, K. (Tehnica UTM, 2018)

We have investigated the galvanomagnetic properties of topological insulator based on single-crystal Bi0.83Sb0.17 nanowires. The single-crystal nanowire samples in the diameter range 75 nm – 1.1 μm were prepared by the ...
Поверхностная энергия цилиндрических наночастиц с диаметром, меньшим длины Толмена

БАРАНОВ, С. А.; РЕХВИАШВИЛИ, С. Ш.; СОКУРОВ, A. A. (Tehnica UTM, 2018)

The phenomenon of nucleation in a cylinder of nanometer size is considered; in particular we investigate the influence of the surface anisotropy energy. We find analytical solutions with soliton characteristics.
Absorbția optică și fotoluminescența compozitului Ga2S3-Ga2O3

CARAMAN, Iuliana; EVTODIEV, Igor; UNTILA, Dumitru; DMITROGLO, Liliana; EVTODIEV, Silvia; SPRINCEAN, Veaceslav; CARAMAN, Mihail; EVTODIEV, Igor; UNTILA, Dumitru; EVTODIEV, Silvia; PALACHI, Leonid (Tehnica UTM, 2018)

În această lucrare sunt studiate absorbția optică și fotoluminescența cristalelor de Ga2S3, obținute prin metoda CVT în atmosferă de I2, și a compozitului Ga2S3–Ga2O3, obținut prin tratament termic al monocristalelor de ...
Encoding the Information in a Quantum Computer Using Effective Spin Two-Boson Representation

GERU, I. I. (Tehnica UTM, 2018)

The Schwinger representation of angular momentum is used to quantum computing. In this representation, examples of encoding and decoding of information in a quantum computer based on maximally entangled quantum states ...
Effect of Carrier Gas and Vacuum Annealing on the Physical Properties of ZnO Thin Films Doped with Gallium by Chemical Spray Pyrolysis

POTLOG, T.; LUNGU, I.; BOTNARIUC, V.; RAEVSCHI, S.; GORCEAC, L.; WORASAWAT, S.; MIMURA, H. (Tehnica UTM, 2018)

Structural, optical and electrical properties of zinc oxide thin films doped with 2% Ga, annealed in the vacuum at the same temperature and obtained onto glass substrates by the chemical spray pyrolysis method in the ...
Особенности характеристик гетероперходных структур на кристаллах 2-5 с оксидами Индия и Олова

ПАНАСЕНКО, Вячеслав; ТКАЧЕНКО, Дмитрий; СТАМОВ, Иван; СЫРБУ, Николай (Tehnica UTM, 2018)

The heterojunction of photosensitive structures based on birefractive crystals with indium-tin oxides are obtained. The electric and photoelectric properties are investigated. The photocurrent spectra and electrical ...
Obținerea și caracterizarea filmelor subțiri în sistemul ZnSnO

MORARI, Vadim; RUSU, Emil; CURMEI, Nicolai; URSAKI, Veaceslav; BRÂNCOVEANU, Oana; MESTERCA, Raluca; MOISE, Calin; PRODANA, Mariana; ENACHESCU, Marius (Tehnica UTM, 2018)

Quasi-planar thin films with thickness of 200 – 700 nm and surface roughness around 10 nm have been prepared by aerosol spray deposition in the ZnSnO semiconductor system. Heterostructures have been produced by deposition ...
Определение параметров системы носителей заряда в Pb1-XSnxTe на основе совместного анализа температурных зависимостей четырех кинетических коэффициентов

МЕГЛЕЙ, Д.; АЛЕКСЕЕВА, С. (Tehnica UTM, 2018)

Experimental studies of transport phenomena in Pb1-xSnxTe provide the most complete information on the kinetics and energy spectrum of charge carriers over a wide range of charge carrier concentration, impurities, and ...
PC assisted waveplates application for one step holographic direct surface relief patterning on azopolymer film

LOŞMANSCHII, Constantin; ACHIMOVA, Elena; ABAŞKIN, Vladimir; MESALCHIN, Alexei (Tehnica UTM, 2018)

Photosensitive film of polyvinyl alcohol: Metil Red (PVA: Methyl Red) was obtained. Method of polarized holographic recording for one step direct surface relief patterning on the azopolymer film was applied. Superimposed ...
Raman scattering of Ge-As-Se thin films

IASENIUC, O. V.; IOVU, M. S.; GHIULNARE, A.; MESTERCA, R.; JDERU, A.; ENACHESCU, M. (Tehnica UTM, 2018)

Raman and infrared spectroscopy are efficient methods for obtaining information on the local structure of the disordered material, especially when the composition is varied. In particular, Micro-Raman spectroscopy have ...
Phonon assisted two-qubit subradiant state preparation

CECOI, Elena; CIORNEA, Viorel; MACOVEI, Mihai A. (Tehnica UTM, 2018)

We investigate phonon asisted two-qubit subradiant state population in the long time limit. The system of interest consists from a laser-pumped two-level qubit pair embedded in a substrate. The subradiant state gets populated ...
Photoluminescence of the Eu(TTA)3(Ph3PO)2 coordination compound: the spectroscopy, kinetic and efficiency

BORDIAN, Olga; VERLAN, Victor; CULEAC, Ion; IOVU, Mihail; ZUBAREVA, Vera; MALAHOV, Ludmila (Tehnica UTM, 2018)

A tris (2-thenoyltrifluoroacetonato (TTA)) (monophenanthroline (Phen)) Europium (III) (Eu(TTA)3(Ph3PO)2) organic compound was synthesized. Upon excitation with ultraviolet light the material has an abundant photoluminescence ...
Oxygen-dependent formation of VO2 Thin Films by Metalorganic Aerosol Deposition

BELENCHUK, A.; SHAPOVAL, O.; ZASAVITSKY, E.; VATAVU, S.; CHIRITA, A.; MOSHNYAGA, V. (Tehnica UTM, 2018)

We report on the growth and properties of vanadium dioxide (VO2) on amorphous and oriented substrates by the low-cost and industry-oriented method of metalorganic aerosol deposition (MAD). X-ray diffraction and ...
High-performance near-ultraviolet avalanche photodetectors based on ZnSe

SIRKELI, Vadim P.; NEDEOGLO, Natalia D.; NEDEOGLO, Dmitrii D.; YILMAZOGLU, Oktay; HAJO, Ahid S.; PREU, Sascha; KÜPPERS, Franko; HARTNAGEL, Hans L. (Tehnica UTM, 2018)

This We report on high-responsivity, fast nearultraviolet avalanche photodetectors based on bulk ZnSe employing a metal-semiconductor-metal structure. A very high responsivity of 2.42 A/W and 4.44 A/W at 20 V bias voltage ...
Determination of one valued characteristics of power-source and power-load elements

PENIN, Alexandr; SIDORENKO, Anatoli (Tehnica UTM, 2018)

The concepts of power-source and power-load elements are considered. The consideration of losses shows the two-valued characteristics of such elements. The interpretation of typical quadratic expressions, as transformations ...
Quantum light features scattered by pumped twolevel systems with permanent dipoles

MIRZAC, A.; CIORNEA, V.; MACOVEI, M. A. (Tehnica UTM, 2018)

Here we investigate the quantum fluctuations in the light scattered by laser driving two – level systems with permanent dipoles. Particularly, we have observed additional quantum features due to existence of the permanent dipoles.
Законы дисперсии трехуровневого атома с эквидистантным энергетическим спектром

КОРОВАЙ, А. В.; МАНГИР, А. Г.; ХАДЖИ, П. И. (Tehnica UTM, 2018)

The dispersion law for a system of three-level atoms with an equidistant energy spectrum interacting with resonant laser radiation is obtained, taking into account two successive one-photon optically resolved transitions ...
Пропускание ультракоротких импульсов лазерного излучения тонкой пленкой полупроводника в условиях возбуждения экситонов и биэкситонов

КОРОВАЙ, А. В.; МАНГИР, А. Г.; ХАДЖИ, П. И. (Tehnica UTM, 2018)

Рассмотрена задача нестационарного пропускания двух падающих на тонкую пленку ультракоротких импульсов лазерного излучения. Один из падающих импульсов находится в резонансе с двухфотонным переходом из основного состояния ...
Metastable bound states of the two-dimensional bimagnetoexcitons with triplet-triplet spin structures in the lowest landau levels approximation

MOSKALENKO, S. A.; KHADZHI, P. I.; PODLESNY, I. V.; DUMANOV, E. V.; ZUBAC, I. A.; LIBERMAN, M. A. (Tehnica UTM, 2018)

The possible existence of the bound states of the interacting two-dimensional (2D) magnetoexcitons with in-plane opposite wave vectors, as well as with antiparallel electric dipole moments oriented perpendicularly to the ...

Now showing items 41-60 of 145

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