Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Mikhail Palatnikov"'
Publikováno v:
Ceramics, Vol 6, Iss 1, Pp 432-446 (2023)
The paper studies LiNbO3 (LN) crystals with a near-stoichiometric composition (NSLN). The study establishes the possibility of different physical methods to reveal NSLN crystals’ exact composition. The main goal was to establish how precisely these
Externí odkaz:
https://doaj.org/article/21bb213b7e5e410294a891975a17d8c0
Autor:
Andryushin Konstantin, Mikhail Palatnikov, Lidiya Shilkina, Alexandr Nagaenko, Olga Shcherbina, Maxim Smirnov, Nikolay Sidorov, Stanislav Kubrin, Anzhela Rudskaya, Daniil Rudskiy, Larisa Reznichenko
Publikováno v:
Ceramics, Vol 6, Iss 1, Pp 342-363 (2023)
Ceramic samples of polycomponent solid solutions (SSs) Na0.90K0.05Cd0.05NbO3 (Cd-modified KNN) and [(Na0.90K0.05Cd0.05)0.95REE0.05]NbO3, where REE = La, Pr, Tb, Dy, Ho, were obtained by the uniaxial hot pressing (UHP) method. The crystal lattice stru
Externí odkaz:
https://doaj.org/article/dbb51d511fb24560a1f83a2e46d694f6
Publikováno v:
Ceramics, Vol 6, Iss 1, Pp 86-101 (2023)
Ceramic samples of polycomponent solid solution (Y0.96Eu0.01Sm0.01Tb0.01Er0.01)Nb0.7Ta0.3O4 have been prepared by sol–gel synthesis from fine powders obtained using nitrate solutions of rare earth elements REE and coprecipitated hydroxides of niobi
Externí odkaz:
https://doaj.org/article/f2ca0533b53f46c3bd5cd554231e808a
Autor:
Mikhail Palatnikov, Olga Shcherbina, Maxim Smirnov, Sofja Masloboeva, Vadim Efremov, Konstantin Andryushin
Publikováno v:
Ceramics, Vol 5, Iss 3, Pp 499-515 (2022)
Fine powders of mixed gadolinium tantalum niobates doped with Eu, Sm, Tb, and Er were synthesized. Ceramic samples of polycomponent solid solutions of Gd0.96Eu0.01Sm0.01Tb0.01Er0.01Nb0.9Ta0.1O4 were obtained from synthesized powders using conventiona
Externí odkaz:
https://doaj.org/article/f60cbab6e3d84b8283eb875442d440d4
Autor:
Roman Titov, Alexandra Kadetova, Olga Tokko, Nikolay Sidorov, Mikhail Palatnikov, Natalija Teplyakova, Sofja Masloboeva, Irina Biryukova, Ilja Efremov, Diana Manukovskaya
Publikováno v:
Crystals, Vol 13, Iss 8, p 1245 (2023)
We have established that relatively simple calculations of the Coulomb interaction in the lattice of doped lithium niobate (LN, LiNbO3) can confirm the physical properties of real crystals. We have developed a method for the double adjustment of real
Externí odkaz:
https://doaj.org/article/1b37dc30a9a742afa1fdd846310d2864
Autor:
Nikolay Sidorov, Mikhail Palatnikov, Natalya Teplyakova, Alexander Pyatyshev, Alexander Skrabatun
Publikováno v:
Photonics, Vol 10, Iss 8, p 921 (2023)
A nonlinear optical double-doped single-crystal LiNbO3:Gd:Mg (Gd concentration is 0.003, Mg—0.65 wt % in the crystal) has been researched by several optical methods: laser conoscopy, photoinduced light scattering (PILS), optical spectroscopy, and R
Externí odkaz:
https://doaj.org/article/099b2f3f43394c4d83aecce3fb742059
Publikováno v:
Photonics, Vol 10, Iss 4, p 439 (2023)
Raman spectra have been excited by the radiation of lasers generatingon in the visible (532 nm) and near-IR (785 nm) ranges in a LiTaO3:Cr3+ (0.005 wt%) crystal. The obtained spectra were compared. Recorded Raman spectra contained bands in the range
Externí odkaz:
https://doaj.org/article/f02db6d7d1f94449a6b16569c3b25fc6
Publikováno v:
Applied Sciences, Vol 13, Iss 4, p 2348 (2023)
A compositionally homogeneous nonlinear optical single crystal of double-doped LiNbO3:Gd3+(0.003):Mg2+(0.65 wt.%) was obtained. Fine features of the LiNbO3:Gd3+(0.003):Mg2+(0.65 wt.%) crystal structure were studied from the Raman spectra of the first
Externí odkaz:
https://doaj.org/article/983a45b279f54efea670c001256906bd
Publikováno v:
Photonics, Vol 9, Iss 10, p 712 (2022)
The Raman spectra of a lithium tantalate crystal doubly doped with chromium and neodymium LiTaO3:Cr(0.2):Nd(0.45 wt%) have been studied in this paper. Raman spectra of the first and second orders have been found to be located against the background o
Externí odkaz:
https://doaj.org/article/0c80073d0d5340c4812eeab4500d813a
Publikováno v:
Crystals, Vol 12, Iss 5, p 600 (2022)
The modification of the optical characteristics of LiNbO3:Zn and LiNbO3:Mg crystals grown by the Czochralski method was investigated using β and γ radiation. The photorefractive effect was found to be inhibited by ionizing radiation in the LiNbO3:Z
Externí odkaz:
https://doaj.org/article/b4d1194c7e6b4e70b9666aecc4c9f386