Search Results - "Shchepanskyi, P.A."

Structure, electronic, optical and elastic properties of (NH4)2BeF4 crystal in paraelectric phase by Rudysh, M.Ya, Fedorchuk, A.O., Stadnyk, V.Yo, Shchepanskyi, P.A., Brezvin, R.S., Horon, B.I., Khyzhun, O.Yu, Gorina, O.M.

“…The theoretical study of the structure and specific properties of the (NH4)2BeF4 crystal is carried out within the framework of the DFT. The band-energy…”
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Structure, refractive and electronic properties of K2SO4:Cu2+ (3%) crystals by Matviiv, R.B., Rudysh, M. Ya, Stadnyk, V. Yo, Fedorchuk, A.O., Shchepanskyi, P.A., Brezvin, R.S., Khyzhun, O.Y.

“…K2SO4:Cu2+ (3%) crystal has been synthesized and its crystal structure is characterized by means of the X-ray diffraction method and discussed within the…”
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TEMPERATURE DEPENDENCE OF THE REFRACTIVE INDICES OF DOPED [K.sub.2]S[O.sub.4] CRYSTALS by Stadnyk, V.Yo, Shchepanskyi, P.A, Rudysh, M.Ya, Kogut, Z.A

“…The temperature dependence of the refractive indices of [K.sub.2]S[O.sub.4] with copper impurity was investigated. It was found that introduction of the copper…”
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Vibrational, thermodynamic and acoustic properties of AgAlS2 crystal by Rudysh, M.Ya, Shchepanskyi, P.A., Myronchuk, G.L., Piasecki, M., Martyniuk, O.S.

“…First-principles calculations of vibrational properties of AgAlS2 crystal have been performed for the first time. The phonon dispersion and phonon density of…”
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Birefringence of β-LiNH4SO4 crystals with Mn2+ impurity under uniaxial pressures by Brezvin, R.S., Rudysh, M.Ya, Stadnyk, V.Yo, Shapravskyi, A.O., Yakymets, D.I., Shchepanskyi, P.A.

“…Single crystals of LiNH4SO4:Mn2+ (5 wt %) were synthesized through the slow evaporation method. The effect of applying uniaxial mechanical pressure along the…”
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First-principles analysis of physical properties anisotropy for the Ag2SiS3 chalcogenide semiconductor by Rudysh, M. Ya, Shchepanskyi, P.A., Fedorchuk, A.O., Brik, M.G., Ma, C.-G., Myronchuk, G.L., Piasecki, M.

“…The theoretical studies of Ag2SiS3 chalcogenide crystal properties are performed using the first-principles calculations within density functional theory. The…”
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Influence of Mn2+ doping on refractive and electronic properties of β-LiNH4SO4 crystals by Brezvin, R.S., Piasecki, M., Kostetskyi, O.Ya, Shchepanskyi, P.A., Stadnyk, V.Yo, Onufriv, O.R., Rudysh, M.Ya

“…β-LiNH4SO4:Mn2+ crystals with 2 and 5 wt% Mn2+ concentration have been synthesized. The crystalline structure of impurity crystals was identified and refined…”
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Impact of anionic system modification on the desired properties for CuGa(S1−xSex)2 solid solutions by Rudysh, M.Ya, Shchepanskyi, P.A., Fedorchuk, A.O., Brik, M.G., Stadnyk, V.Yo, Myronchuk, G.L., Kotomin, E.A., Piasecki, M.

“…[Display omitted] •The influence of partial anion substitution on physical properties of CuGaS2–CuGaSe2.•Determined structural, electronic, and optical…”
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Optical and electronic parameters of Rb2SO4 crystals by Rudysh, M. Ya, Pryshko, I.A., Shchepanskyi, P.A., Stadnyk, V. Yo, Brezvin, R.S., Kogut, Z.O.

“…Good-quality rubidium sulfate Rb2SO4 crystals were grown by slow evaporation of the solvent. The study of single-phase crystalline structure was performed by…”
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AgGaTe2 – The thermoelectric and solar cell material: Structure, electronic, optical, elastic and vibrational features by Rudysh, M.Ya, Piasecki, M., Myronchuk, G.L., Shchepanskyi, P.A., Stadnyk, V.Yo, Onufriv, O.R., Brik, M.G.

“…•AgGaTe2: the multifunctional energy convertor and NLO crystal.•The structural, electronic, optical and elastic properties were calculated.•The electronic band…”
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Relationships among optical and structural characteristics of ABSO4 crystals by Kushnir, O.S., Shchepanskyi, P.A., Stadnyk, V.Yo, Fedorchuk, A.O.

“…We systematize the data for refractive indices and optical birefringences of ABSO4 crystals (A, B = Li, Na, K, NH4, Rb, Cs) and analyze their interrelations…”
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Ab initio calculations of the electronic structure and specific optical features of β-LiNH4SO4 single crystals by Rudysh, M.Ya, Brik, M.G., Stadnyk, V.Yo, Brezvin, R.S., Shchepanskyi, P.A., Fedorchuk, A., Khyzhun, O.Y., Kityk, I.V., Piasecki, M.

“…In the present work complex experimental and theoretical studies of electronic and optical properties for β-lithium-ammonium sulfate crystals of good optical…”
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REFRACTIVE PARAMETERS AND BAND ENERGY STRUCTURE OF [K.sub.2]S[O.sub.4] CRYSTALS DOPED WITH COPPER by Stadnyk, V.Yo, Matviiv, R.B, Rudysh, M.Ya, Brezvin, R.S, Shchepanskyi, P.A, Andrievskii, B.V

“…Potassium sulfate crystals with a copper content of 1.7% were synthesized, and the dependence of their refractive indices [n.sub.i]([lambda]) and birefringence…”
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Specific features of refractive, piezo-optic and nonlinear optical dispersions of β-LiNH4SO4 single crystals by Rudysh, M.Ya, Stadnyk, V.Yo, Shchepanskyi, P.A., Brezvin, R.S., Jedryka, J., Kityk, I.V.

“…The crystals of LiNH4SO4 in β-modification are synthesized and the parameters of their crystalline unit cell are refined from XRPD spectra using Rietveld…”
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The Influence of Partial Isomorphic Substitution on Electronic and Optical Parameters of ABSO 4 Group Crystals by Shchepanskyi, P.A., Gaba, V.M., Stadnyk, V.Yo, Rudysh, M.Ya, Brezvin, R.S., Piasecki, M.

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