IRTUM – Institutional Repository of the Technical University of Moldova

Browsing Articole din publicaţii internaţionale by Title

Browsing Articole din publicaţii internaţionale by Title

Sort by: Order: Results:

  • Excitonic polaritons in ZnAs2 
    ZALAMAI, V. V.; SYRBU, N. N.; STAMOV, I. G. (Institutul de Fizică Aplicată, 2016)
    Spectral dependences of normal and anomaly dispersions of refractive index were calculated from interferential reflection and transmission spectra. It was shown, that A and B excitonic series were due to by hole V1 and ...
  • Excitonic polaritons of zinc diarsenide single crystals 
    SYRBU, N. N.; STAMOV, I. G.; ZALAMAI, V. V.; DOROGAN, A. (Elservier, 2017)
    Excitonic polaritons of ZnAs2 single crystals had been investigated. Parameters of singlet excitons with Г2¯(z) symmetry and orthoexcitons 2Г1¯(y)+Г2¯(x) had been determined. Spectral dependencies of ordinary and extraordinary ...
  • Excitonic resonance spectra in QW and QD In0.3Ga0.7As/GaAs hetrostructures 
    DOROGAN, A.; DOROGAN, V.; MEREUTA, A.; SYRBU, A.; SYRBU, N.; VIERU, T.; URSAKI, V.; ZALAMAI, V. (Institutul de Fizică Aplicată al AŞM, 2012)
    The measurement of optical reflection and transmittance spectra had been carried out using MДР-2, JASCO-670 and СДЛ-1 spectrometers at 10K and 300K for S- and P-polarizations and different light angles incident on the ...
  • Excitonic spectra and band structure of CdGa2Se4 birefractive crystals 
    SYRBU, N. N.; STAMOV, I. G.; PARVAN, V. I.; ZALAMAI, V. V.; TIGINYANU, I. M. (Elservier, 2013)
    We report on the intersection of spectral dependences of refractive indices no and ne at the wavelengths 546nm (λ0) and 450nm (λ01) in CdGa2Se4 single crystals. The value of difference Δn=ne−no is equal to zero at the ...
  • Excitonic spectra and birefringence in TlGaS2 single crystals 
    TIRON, A. V. (Institutul de Fizică Aplicată, AŞM, 2018)
    TlGaS2 crystals belong to triple thallium chalcogenides with well-pronounced lamellar structure. Due to specificity of crystal structure these crystals have a strong anisotropy of physical properties. The authors report ...
  • Excitonic spectra and energy band structure of ZnAl2Se4 crystals 
    SYRBU, N. N.; ZALAMAI, V. V.; TIRON, A. V.; TIGINYANU, I. M. (Elservier, 2015)
    Absorption, reflection and wavelength modulated reflection spectra were investigated in ZnAl2Se4 crystals. The energy positions of ground and excited states for three excitonic series (А, В and С) were determined. The main ...
  • Excitonic spectra and energy band structure of ZnAl2Se4 crystals 
    SYRBU, N. N.; ZALAMAI, V. V.; TIRON, A. V.; TIGINYANU, I. M. (Elsevier, 2015)
    Absorption, reflection and wavelength modulated reflection spectra were investigated in ZnAl2Se4 crystals. The energy positions of ground and excited states for three excitonic series (А, В and С) were determined. The main ...
  • Excitonic spectra in HgGa2Se4 crystals 
    SYRBU, N. N.; ZALAMAI, V. V. (Elservier, 2018)
    Ground and excited states of four excitonic series (A, B, C and D) were discovered in HgGa2Se4 crystals at 10 K. Parameters of excitons and bands were determined. An effective mass of electrons mc is equal to 0.26m0 and ...
  • Excitonic spectra of TlGaSe2 crystals 
    SYRBU, N. N.; ZALAMAI, V. V.; BEJAN, N. P.; TIRON, A. V. (Editura Academiei Romane, 2015)
    The indirect transitions in excitonic region with phonons emission in absorption spectra of TlGaSe2 crystals and ground and excited states of four excitonic series A, B, C and D were observed. The parameters of excitons ...
  • Excitonic states and electron transitions in HgGa2Se4 single crystals 
    ZALAMAI, V. V.; SYRBU, N .N.; TIRON, A. V. (Institutul de Fizică Aplicată, AŞM, 2018)
    The HgGa2Se4 crystals were grown by gas-transport method in ampoules and were plates with mirrored surfaces ~ 5x7 mm and 2 - 6 mm thickness. The plate‘s surfaces were parallel with c axis and could be recognized visually. ...
  • Excitons and energetic bands structure of ZnP2-С2h 5 crystals 
    STAMOV, I. G.; DOROGAN, A. V.; SYRBU, N. N.; ZALAMAI, V. V. (Open Science Publishers, 2014)
    Reflectivity and transmittance spectra of ZnP2-C2h 5 crystals in the region of A, B and C excitons and E>Eg had been researched. The spectra had been calculated using dispersion correlations and the Kramers-Kronig correlations. ...
  • Excitons in TlGaSe2 crystals 
    ZALAMAI, V. V.; SYRBU, N. N.; TIRON, A. V. (Academia de Ştiinţe a Moldovei, 2014)
    TaGaSe2 semiconductors crystallize as a lamellar structure and have monoclinic lattice. One of the features of these crystals is a strong anisotropy of physical characteristics due to the specificity of the crystal structure. ...
  • Exciton–phonon luminescence and Raman scattering in CuGaS2 crystals 
    SYRBU, N. N.; TEZLEVAN, V. E.; GALBICH, I.; NEMERENCO, L. L.; URSAKI, V. V. (ELSEVIER, 2009)
    Photoluminescence and resonance Raman scattering spectra of CuGaS2 crystals are investigated at low temperature (10K) under the excitation with the radiation from a spectral interval obtained by passing the radiation of ...
  • Experiența și designul modern al sistemelor fiscale internaționale 
    CHIRIAC, Natalia (Academia de Administrare Publică, Republica Moldova, 2020)
    This article describes the tax systems of the Member States of the European Union, the United States of America and Japan. It is well known that fiscal policy plays an important role in the market economy by applying the ...
  • Experimental and numerical study of Distributed-Bragg-Reflector tapered lasers 
    FIEBIG, C.; TRONCIU, V. Z.; LICHTNER, M.; PASCHKE, K.; WENZEL, H. (Springer Nature Switzerland, 2010)
    We report results on experimental and numerical investigations of the output characteristics of edge-emitting distributed Bragg reflector tapered diode lasers emitting around 980 nm. The experimental results are well ...
  • Experimental and theoretical analysis of the upper critical field in ferromagnet-superconductor-ferromagnet trilayers 
    ANTROPOV, E.; KALENKOV, M. S.; KEHRLE, J.; ZDRAVKOV, V. I.; MORARI, R.; SOCROVISCIUC, A.; LENK, D.; HORN, S.; TAGIROV, L. R.; ZAIKIN, A. D.; SIDORENKO, A. S.; HAHN, Horst; TIDECKS, R. (IOP Publishing, 2013)
    The upper critical magnetic field Hc2 in thin film ferromagnet–superconductor–ferromagnet trilayer spin-valve cores is studied experimentally and theoretically in geometries perpendicular and parallel to the heterostructure ...
  • Experimental estimation of the recognition reliability in the optical pattern recognition systems 
    PERJU, Veacheslav L.; CASASENT, David P.; MARDARE, Igor A.; CHIRCA, Oleg V. (SPIE, 2007)
    A method of the recognition reliability estimation in the optical pattern recognition systems (OPRS) is described, based on of the similarity measures differences (SMD). It was theoretically justified and experimentally ...
  • Experimental Identification of the Mathematical Model of the DC Motor based on the Genetic Algorithm 
    MELNIC, Vladimir; COJUHARI, Irina (Tipografia "Valinex", 2020)
    In this paper it is presented the experimental identification of the mathematical model of the DC motor. The experimental curve of the DC motor was raised and it was proposed to be approximated with transfer function with ...
  • The Experimental Method for Tuning of PID Controller Based on the Maximum Stability Degree Criterion 
    FIODOROV, Ion; COJUHARI, Irina; IZVOREANU, Bartolomeu; MORARU, Dumitru; BOTNARU, Sorin; MELNIC, Radu (IEEE, 2018)
    An experimental method for tuning of the PID controller and its variations, using the critical regime parameters of the closed loop control system is proposed in this paper. The method was developed based on the maximum ...
  • Experimental observation of the triplet spin-valve effect in a superconductor-ferromagnet heterostructure 
    ZDRAVKOV, V. I.; KEHRLE, J.; OBERMEIER, G.; LENK, D.; KRUG VON NIDDA, H.-A.; MÜLLER, C.; KUPRIYANOV, M. Yu.; SIDORENKO, A. S.; HORN, S.; TIDECKS, R.; TAGIROV, L. R. (American Physical Society, 2013)
    The theory of superconductor-ferromagnet heterostructures with two ferromagnetic layers predicts the generation of a long-range, odd-in-frequency triplet pairing at noncollinear alignment (NCA) of the magnetizations of the ...

Search DSpace


Browse

My Account