28 citations · 156 across the 13 of their papers we have counts for
13 papers
EXAFS studies of the local environment of lead and selenium atoms in PbTeSe solid solution
A. I. Lebedev, I. A. Sluchinskaya, V. N. Demin +1
EXAFS spectroscopy is used to study the local environment of lead and selenium atoms in PbTeSe solid solution. In addition to a bimodal distribution of bond lengths in…
On the possibility of incorporation of the iron impurity into sites in SrTiO
I. A. Sluchinskaya, A. I. Lebedev
The local environment and oxidation state of the Fe impurity in strontium titanate are studied using XAFS spectroscopy. The influence of annealing temperature and deviation from st…
Cobalt in strontium titanate as a new off-center magnetic impurity
I. A. Sluchinskaya, A. I. Lebedev
The local structure and oxidation state of the cobalt impurity in SrTiO is studied by X-ray absorption fine structure (XAFS) spectroscopy. The synthesis conditions, under which…
Low-temperature phase transitions in some quaternary solid solutions of IV-VI semiconductors
A. I. Lebedev, I. A. Sluchinskaya
Samples of PbSSeTe, PbSnTeSe, and PbSnTeS quaternary solid solutions were investigated in the 4--200~K temperature…
Electronic and magnetic properties of structural defects in SrTiO(Co)
I. A. Sluchinskaya, A. I. Lebedev
The synthesis conditions of SrTiO(Co) samples in which cobalt predominantly enters the or sites of the perovskite O structure are found. EXAFS studies show that…
EXAFS and electrical studies of new narrow-gap semiconductors: InTeSe and InGaTe
A. I. Lebedev, A. V. Michurin, I. A. Sluchinskaya +2
The local environment of Ga, Se, and Tl atoms in InTe-based solid solutions was studied by EXAFS technique. It was shown that all investigated atoms are substitutional impurities,…
An experimental and theoretical study of Ni impurity centers in BaSrTiO
I. A. Sluchinskaya, A. I. Lebedev
The local environment and the charge state of a nickel impurity in cubic BaSrTiO are studied by XAFS spectroscopy. According to the XANES data, the mean Ni char…
On the nature of change in Ni oxidation state in BaTiO3-SrTiO3 system
A. I. Lebedev, I. A. Sluchinskaya
XAFS studies of Ni-doped BaSrTiO solid solution reveal that the Ni oxidation state changes from 4 in SrTiO to 2.5 in BaTiO when varying . This change is…
Local environment and oxidation state of Mn impurity in SrTiO3 determined from XAFS data
I. A. Sluchinskaya, A. I. Lebedev, A. Erko
The local environment and oxidation state of Mn impurity in strontium titanate doped with 3% Mn were studied by X-ray absorption fine structure spectroscopy. The influence of the p…
Effect of local environment on crossluminescence kinetics in SrF2:Ba and CaF2:Ba solid solutions
M. A. Terekhin, V. N. Makhov, A. I. Lebedev +1
Spectral and kinetic properties of extrinsic crossluminescence (CL) in SrF2:Ba(1%) and CaF2:Ba(1%) are compared with those of intrinsic CL in BaF2 and are analyzed taking into acco…
Structural position and oxidation state of nickel in SrTiO3
Irina A. Sluchinskaya, Alexander I. Lebedev, Alexei Erko
The properties of Ni-doped strontium titanate are studied using X-ray diffraction and XAFS spectroscopy. It is shown that regardless of the preparation conditions, the SrTi1-xNixO3…
Combined first-principles and EXAFS study of structural instability in BaZrO3
A. I. Lebedev, I. A. Sluchinskaya
Phonon spectrum of cubic barium zirconate is calculated from first principles using the density functional theory. Unstable phonon mode with the symmetry in the phonon spe…
Crystal structure, local structure, and defect structure of Pr-doped SrTiO
I. A. Sluchinskaya, A. I. Lebedev, A. Erko
X-ray diffraction studies showed that the structure of (SrPr)TiO solid solutions at 300 K changes from the cubic to the tetragonal with increasing $…