Zobrazeno 1 - 10
of 86
pro vyhledávání: '"L. S. Sochava"'
Publikováno v:
Physics of the Solid State. 52:706-711
A new iron center in stoichiometric lithium niobate crystals has been studied by the EPR method. The angular dependences of the EPR spectrum of the center have been used to derive the parameters of its spin Hamiltonian. The data amassed on the variat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd9f5c7892da9b451f00c36a04eafad7
https://doi.org/10.1134/s1063783410040062
https://doi.org/10.1134/s1063783410040062
Publikováno v:
Physics of the Solid State. 49:2262-2265
The electric field effects in the EPR spectra of low-spin (S = 1/2) Ni3+ tetragonal centers in KTaO3 single crystals are investigated. It is revealed that the resonance lines are split and the centers are oriented as a result of the interaction of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f720646df3c6df52efc5a2b9b853ca2f
https://doi.org/10.1134/s1063783407120086
https://doi.org/10.1134/s1063783407120086
Publikováno v:
Physics of the Solid State. 46:258-264
The CuTa2+-VO axial centers in crystalline KTaO3 were found to undergo alignment under the action of polarized light. The sign of the effect is shown to change depending on the wavelength of the aligning light. A parallel study of the spectral respon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01d8d1a4a813c39964d7822ed0fe3807
https://doi.org/10.1134/1.1649421
https://doi.org/10.1134/1.1649421
Autor:
L. S. Sochava, V. V. Lemanov
Publikováno v:
Physics of the Solid State. 45:1455-1458
Temperature-induced transformation of the ESR spectrum in γ-irradiated single crystals of the protein aminoacid L alanine, caused by hindered rotation of the CH3 group was studied. The rotation parameters as derived from the transformation of the ES
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02526e4e73a8e002891bc6f644cdb898
https://doi.org/10.1134/1.1602878
https://doi.org/10.1134/1.1602878
Publikováno v:
Physics of the Solid State. 43:1059-1071
An EPR study has revealed light-induced recharging and optical alignment of the FeTa4+-VO tetragonal complexes in KTaO3. The data on the optical creation and destruction of this center by light of different polarizations and wavelengths are discussed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c13587590dfc7859ab16348b505d0f8a
https://doi.org/10.1134/1.1378145
https://doi.org/10.1134/1.1378145
Autor:
L. S. Sochava, S. A. Basun, V. É. Bursian, H. Hesse, D. V. Azamat, S. E. Kapphan, A. G. Razdobarin
Publikováno v:
Physics of the Solid State. 41:1303-1306
The EPR spectrum of the non-Kramers iron ion Fe4+ (S=2) in a KTaO3:Fe crystal appearing after illumination of the sample in the visible has been detected and studied. Because of the large initial splitting (|D|=4.15 cm−1), only transitions within t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12f076fe00328f942dd99477254ceaaa
https://doi.org/10.1134/1.1130987
https://doi.org/10.1134/1.1130987
Autor:
V. S. Vikhnin, S. E. Kapphan, L. S. Sochava, V. É. Bursian, S. A. Basun, Dean R. Evans, A. G. Razdobarin
Publikováno v:
Physics of the Solid State. 49:460-462
A new paramagnetic center of orthorhombic symmetry with spin S = 1/2 is revealed in KTaO3: Ni crystals. The well-resolved superhyperfine EPR structure consisting of 15 components indicates preferred interaction of the center with two tantalum nuclei
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8038f8007a7ceb282a2443194ae0101a
https://doi.org/10.1134/s1063783407030110
https://doi.org/10.1134/s1063783407030110
Autor:
P. P. Syrnikov, V. É. Bursian, Lubomir Jastrabik, L. S. Sochava, F. Smutný, V. A. Trepakov, V. S. Vikhnin
Publikováno v:
Radiation Effects and Defects in Solids. 134:325-328
The temperature-frequency behaviour of the permittivity ∊′(T,f) and tgδ(T,f) (20–300 K, 120 Hz–9 MHz), EPR, optical absorption and luminescence of KTaO3 single crystals, pure and with Li 0.1; Cr 0.02; Cu 3; Fe 1; Li 0.1 + Cr 0.1, and Li 0.1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b665a0bc2ec45e397fc83bfc01f8d76b
https://doi.org/10.1080/10420159508227240
https://doi.org/10.1080/10420159508227240
Autor:
V. É. Bursian, L. S. Sochava, V. A. Trepakov, F. Smutny, V. Vikhnin, P. P. Syrnikov, L Jastrabik
Publikováno v:
Journal of Physics: Condensed Matter. 7:3765-3777
The temperature-frequency behaviour of the permittivity epsilon '(T, f) and tan( delta (T, f)) (20-300 K; 120 Hz-9 MHz), EPR, optical absorption and luminescence of KTaO3 nominally pure and weakly doped (0.1 wt% Li; 0.01 wt% Cr; 3 wt% Cu; 1 wt% Fe; 0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cca45d4093bd5c0355532217c0640da8
https://doi.org/10.1088/0953-8984/7/19/011
https://doi.org/10.1088/0953-8984/7/19/011
Publikováno v:
Physics of the Solid State. 42:1640-1642
Fe K 3+ -O i 2− impurity centers in a KTaO3 sample to which a dc electric field E=75 kV/cm is applied are shown to be oriented at temperatures T≥120 K. In these conditions, the effective local field acting on the electric dipole moment of a cente
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d350a36822225be34f7f401feb73c010
https://doi.org/10.1134/1.1309443
https://doi.org/10.1134/1.1309443