Zobrazeno 1 - 10
of 20
pro vyhledávání: '"P. M. Rafailov"'
Publikováno v:
Nanomaterials, Vol 14, Iss 15, p 1256 (2024)
Bulk single crystals of WTe2 were grown by the self-flux method and characterized by X-ray diffraction, polarized micro-Raman spectroscopy, and optical microscopy. All methods revealed a high crystalline quality, thus demonstrating the advantages of
Externí odkaz:
https://doaj.org/article/28bbaba83f2c4c0fb7c769fe6b6abec8
Autor:
Peter M. Rafailov, Peter K. Sveshtarov, Vladimir B. Mehandzhiev, Ivalina Avramova, Penka Terziyska, Minko Petrov, Boyko Katranchev, Haritun Naradikian, Stefan I. Boyadjiev, Csaba Cserháti, Zoltán Erdélyi, Imre M. Szilágyi
Publikováno v:
Molecules, Vol 27, Iss 6, p 1789 (2022)
Graphene films were grown by chemical vapor deposition on Cu foil. The obtained samples were characterized by Raman spectroscopy, ellipsometry, X-ray photoelectron spectroscopy and electron back-scatter diffraction. We discuss the time-dependent chan
Externí odkaz:
https://doaj.org/article/f498d1c4dc874b6ca9769564a4ba4a89
Autor:
Nikolay A Barashkov, Vera G Pshennikova, Olga L Posukh, Fedor M Teryutin, Aisen V Solovyev, Leonid A Klarov, Georgii P Romanov, Nyurgun N Gotovtsev, Andrey A Kozhevnikov, Elena V Kirillina, Oksana G Sidorova, Lena M Vasilyevа, Elvira E Fedotova, Igor V Morozov, Alexander A Bondar, Natalya A Solovyevа, Sardana K Kononova, Adyum M Rafailov, Nikolay N Sazonov, Anatoliy N Alekseev, Mikhail I Tomsky, Lilya U Dzhemileva, Elza K Khusnutdinova, Sardana A Fedorova
Publikováno v:
PLoS ONE, Vol 11, Iss 5, p e0156300 (2016)
Pathogenic variants in the GJB2 gene, encoding connexin 26, are known to be a major cause of hearing impairment (HI). More than 300 allelic variants have been identified in the GJB2 gene. Spectrum and allelic frequencies of the GJB2 gene vary signifi
Externí odkaz:
https://doaj.org/article/f81ef01b7f9f4787a28282561df238bc
Publikováno v:
Journal of Physics: Conference Series. 2436:012018
A nanocomposite built of the hydrogen-bonded (HB) dimer liquid crystal 4-heptyloxybenzoic acid (7OBA) and Graphene oxide (GO) exhibiting a cascade of phase transitions and phases not typical for pristine 7OBA, was investigated by optical polarization
Autor:
B S Blagoev, D A Delibatov, V B Mehandzhiev, P Sveshtarov, P Terziyska, I Avramova, P M Rafailov
Publikováno v:
Journal of Physics: Conference Series. 2240:012002
Nanofilms of aluminium oxide Al2O3 (ALO) were grown on Si, Cu and graphene/Cu substrates by atomic layer deposition (ALD). Trimethylaluminium (TMA) and deionized (DI) water were used as precursors for the ALD process. In order to obtain the ALD tempe
Publikováno v:
Journal of Physics: Conference Series. 1762:012024
CVD-grown graphene was transferred onto polished crystal plates of pristine and Ru-doped bismuth silicate (Bi12SiO20:Ru), which are well known inorganic materials possessing very high carrier mobility and photo conductivity. The heterostructures obta
Publikováno v:
Physical Review B. 56:2495-2500
The Raman-scattering intensity of C${}_{60}$ intramolecular modes in fullerite, excited at 2.41 eV, strongly increases (up to one order of magnitude) upon cooling below room temperature. The effect has different strength for the ${A}_{g}$ and ${H}_{g
Publikováno v:
Journal of Physics: Conference Series. 682:012028
We report results of polarized Raman spectroscopy of piezoelectric copper metaborate CuB2O4 (space group I ¯42d, Z = 12) in the range from 80 to 1300 cm-1. Due to the dense population of the phonon spectra we carried out angular-dependent measuremen
Autor:
T I, Milenov, P M, Rafailov, V, Tomov, R P, Nikolova, V, Skumryev, J M, Igartua, G, Madariaga, G A, López, E, Iturbe-Zabalo, M M, Gospodinov
Publikováno v:
Journal of physics. Condensed matter : an Institute of Physics journal. 23(15)
Single crystals of the mixed valence compound Pb₃Ni₁.₅Mn₅.₅O₁₅ were successfully grown. Polarized Raman spectroscopy revealed that they belong to the point group D(3d), in accordance with single-crystal x-ray diffraction data which were
Autor:
T. I. Milenov, P. M. Rafailov, C. Thomsen, A. V. Egorysheva, R. Titorenkova, L. Yankova, M. N. Veleva, S. Dobreva, V. M. Skorikov, Angelos Angelopoulos, Takis Fildisis
Publikováno v:
AIP Conference Proceedings.
Crystals of BSO doped with Se are successfully grown by the Czochralski method. The measured concentration of Se is 1.75x10{sup 18} cm{sup -3} and of Fe is 6.4x10{sup 18} cm{sup -3}, i.e. the concentration of Fe is significantly increased. It is assu