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Application of synchrotron radiation to investigation of the mechanism of increase in the yield of alkali metal ions in electron-stimulated desorption
Pleiades Publishing Ltd - Tập 48 - Trang 792-800 - 2006
V. N. Ageev, N. D. Potekhina, I. I. Pronin, S. M. Soloviev, D. V. Vyalykh, S. L. Molodtsov
Core-level photoelectron spectroscopy with synchrotron radiation (hv = 140 eV) has been applied to study the variation in the Si+ charge state in silicon films deposited on the W(100) surface after thermal annealing of the substrate. The purpose of this study is to check the mechanism responsible for the sharp increase in the yield of Na+ ions in electron-stimulated desorption from a sodium layer ...... hiện toàn bộ
Thermal conductivity and electrical resistivity of bulk indium and indium embedded in 7-nm channels of porous borosilicate glass
Pleiades Publishing Ltd - Tập 55 - Trang 1779-1785 - 2013
Yu. A. Kumzerov, A. V. Fokin, L. S. Parfen’eva, B. I. Smirnov, I. A. Smirnov, H. Misiorek, A. Jezowski
A “porous glass + indium” nanocomposite has been prepared. The thermal conductivity κ(T) and electrical resistivity ρ(T) of the nanocomposite have been measured in the temperature range 5–300 K, and their fractions accounted for by nanoindium embedded in 7-nm channels of the porous glass have been determined. For comparison, κ and ρ of the bulk polycrystalline indium sample have been measured in t...... hiện toàn bộ
Heat capacity of multiferroics Bi1–x Pr x FeO3
Pleiades Publishing Ltd - Tập 59 - Trang 1477-1480 - 2017
S. N. Kallaev, Z. M. Omarov, R. G. Mitarov, B. R. Bilalov, A. Ya. Kurbaitaev, S. V. Khasbulatov, L. A. Reznichenko
The heat capacity of multiferroics Bi1–x Pr x FeO3 (0 ≤ x ≤ 0.20) has been studied in the temperature range 130–800 K. An insignificant substitution of praseodymium for bismuth is found to lead to a noticeable shift of the antiferromagnetic phase transition temperature and to an increase in the heat capacity in the temperature range...... hiện toàn bộ
New Nanosized Luminophores Obtained via Evaporation of REE Silicates and Germanates
Pleiades Publishing Ltd - Tập 61 - Trang 925-934 - 2019
M. G. Zuev, V. G. Il’ves, S. Yu. Sokovnin, A. A. Vasin, I. V. Baklanova
Nanophosphors in the amorphous state are first obtained via pulsed electron beam evaporation of targets made of polycrystalline phosphors with the compositions Ca2M8(SiO4)6O2:Eu (M = Y and Gd) and Ca2La8(GeO4)6O2:Eu with the structure of oxyapatite. Reduction of ions Eu3+ → Eu2+ in the electron beam is found. Modification of the Raman scattering (RS) spectra of the samples in the case of a decreas...... hiện toàn bộ
Ảnh hưởng của các điều kiện chuẩn bị đối với rối loạn năng lượng trong các phim poly(methylphenyl)silane Dịch bởi AI
Pleiades Publishing Ltd - Tập 44 - Trang 1785-1790 - 2002
Yu. A. Skryshevski
Các phổ phát quang (T=5 K) và hấp thụ (T=295 K) cũng như các đường cong phát quang bị kích thích nhiệt (T=5–300 K) của phim poly(methylphenyl)silane (PMPS) được nghiên cứu dựa trên độ dày của phim, nhiệt độ ủ và hàm lượng oxy trong không khí. Kết quả cho thấy rằng các phổ quang học và đường cong phát quang bị kích thích nhiệt của các phim PMPS được chế tạo trong không khí ở nhiệt độ phòng có sự th...... hiện toàn bộ
#photoluminescence #poly(methylphenyl)silane #verrassoliton #energy disorder
X-ray spectra and specific features of the structure of lithium-sodium cobaltite Li x Na y CoO2
Pleiades Publishing Ltd - Tập 53 - Trang 271-275 - 2011
V. V. Mesilov, V. R. Galakhov, A. S. Semenova, D. G. Kellerman, L. V. Elokhina
The electronic structure and specific features of the structure of nonstoichiometric cobaltite Li x Na y CoO2 (x = 0.42, y = 0.36) have been studied comprehensively. The calculated multiplet for the lowspin state of the Co3+ ion agrees with the experimental spectra. It has been established using X-ray absorption spectra measured i...... hiện toàn bộ
Characteristics of the Li+-Ion Conductivity of Li3R2(PO4)3 Crystals (R = Fe, Sc) in the Superionic State
Pleiades Publishing Ltd - Tập 60 - Trang 899-905 - 2018
N. I. Sorokin
The characteristics of Li+-ion conductivity σdc of structural γ modifications of Li3R2(PO4)3 compounds (R = Fe, Sc) existing in the superionic state have been investigated by impedance spectroscopy. The type of structural framework [R2P3O12]∞3- affects the σdc value and the σdc activation enthalpy in these compounds. The ion transport activation enthalpy in γ-Li3R2(PO4)3 (ΔHσ = 0.31 ± 0.03 eV) is ...... hiện toàn bộ
Spectral characteristics of solid solutions LiY1−x Lu x F4 doped by Ce3+ ions
Pleiades Publishing Ltd - Tập 50 - Trang 1648-1651 - 2008
A. S. Nizamutdinov, V. V. Semashko, A. K. Naumov, L. A. Nurtdinova, R. Yu. Abdulsabirov, S. L. Korableva, V. N. Efimov
During crystallization, the LiF-YF3-LuF3 compounds form a continuous series of solid solutions having a scheelite structure at any proportion of the YF3 and LuF3 components. It is established that the crystals conform to the Vegard law and the Rutgers rule. The spectral characteristics of the 5d–4f transitions of Ce3+ ions and color centers induced by ultraviolet radiation in these crystals were s...... hiện toàn bộ
Theory of the Microstructure of Disordered AAʹBO[sub 3] and ABBʹO[sub 3] Perovskite-Structure Solid Solutions
Pleiades Publishing Ltd - Tập 47 Số 3 - Trang 459 - 2005
K. Yu. Gufan
Electron transport in the carbon-copper nanocluster structure
Pleiades Publishing Ltd - Tập 42 - Trang 1139-1146 - 2000
L. V. Lutsev, S. V. Yakovlev, V. I. Siklitskii
The electron transport in hydrogenated amorphous carbon films a-C: H with copper nanocluster inclusions has been investigated. The conditions of cluster formation are derived. It is theoretically demonstrated that the energy band structure of the matrix substantially affects the conditions of cluster formation. The electron transport depends on the cluster structure. It is found that, below the pe...... hiện toàn bộ
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