Zobrazeno 1 - 10
of 241
pro vyhledávání: '"L A Shuvalov"'
Autor:
K. Wozniak, N. Zink, A. Pawlukojc, G. Melnyk, L. S. Smirnov, A. Loose, P. Dominiak, L. A. Shuvalov
Publikováno v:
Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques. 1:113-119
The crystal structure of ammonium selenate has been studied by means of single crystal x-ray and neutron diffraction with the purpose of the refinement of hydrogen positions. The refined hydrogen positions obtained by single crystal neutron diffracti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a373771e96a7572fff8575de51774597
https://doi.org/10.1134/s1027451007010235
https://doi.org/10.1134/s1027451007010235
Publikováno v:
Crystallography Reports. 50:789-795
Deuterated and protonated tetragonal lysozyme crystals are grown using the hanging-drop vapor-diffusion method. The size of the lysozyme crystals grown is determined as a function of the concentration of sodium chloride used as a precipitant. It is f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::866407eeb178226b61baf07c2429e671
https://doi.org/10.1134/1.2049397
https://doi.org/10.1134/1.2049397
Publikováno v:
Crystallography Reports. 50:637-645
Symmerically admissible structural distortions are analyzed in terms of the group theory under the assumption that the order parameter is transformed according to the direct sum of irreducible representations M 5 ⊕ R 8 ⊕ Γ10 consisting of the M,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12ba281ff107c47037eaa673eace0a10
https://doi.org/10.1134/1.1996739
https://doi.org/10.1134/1.1996739
Publikováno v:
Crystallography Reports. 50:441-451
The influence of replacement of an ammonium ion by rubidium on the x-T phase diagram in the concentration range 0.50 ≤ x ≤ 1.0 has been studied by X-ray and neutron powder diffraction over a wide temperature range. It is shown that a decrease in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::393fdd771d312f34044514d3b4899199
https://doi.org/10.1134/1.1927606
https://doi.org/10.1134/1.1927606
Publikováno v:
Crystallography Reports. 50:254-261
The effect of temperature and the concentration of ammonium on the lattice parameters and the amplitude-weighted phonon density of states in mixed salts of ammonium potassium halides is studied by neutron powder diffraction and incoherent inelastic n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::668aca48c93f846adc044d9eccbd45fe
https://doi.org/10.1134/1.1887899
https://doi.org/10.1134/1.1887899
Autor:
L. A. Shuvalov, L. N. Korotkov
Publikováno v:
Crystallography Reports. 49:832-842
Regularities of the formation of the relaxor and dipole-glass states in the systems of mixed ferroelectric-antiferroelectric crystals of the potassium dihydrogen phosphate family are discussed. The problems related to the crystal structure, lattice d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0ead6524afd32802ddd956421b00eb4f
https://doi.org/10.1134/1.1803315
https://doi.org/10.1134/1.1803315
Autor:
D. P. Kozlenko, L. S. Smirnov, L. A. Shuvalov, S. Vratislav, Lourdes Mestres, Sergey E. Kichanov, I. Natkaniec, M. Dlouha, María-Luisa Martínez-Sarrión, M. Herraiz, B. N. Savenko
Publikováno v:
Crystallography Reports. 49:653-659
The structural and dynamical properties of the x-T phase diagram of the system of Rb1 − x(NH4)xI mixed crystals is of great interest, because such solid solutions are almost free of internal stresses due to almost equal ionic radii of ammonium and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::008877eef1ec2d466c63f123c9dcf321
https://doi.org/10.1134/1.1780632
https://doi.org/10.1134/1.1780632
Composition Effect on Glass-Like Properties of Mixed Crystals of KDP Type with Competing Interaction
Publikováno v:
Ferroelectrics. 299:133-144
The analysis of dielectric and polarization properties of mixed ferroantiferroelectric crystals (1 −x )KDP-xADP and related systems has been performed for broad range of concentration x. The problems concerning the composition effect on spontaneous
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ceaff9f52690c9d9cf7be23411ec06fe
https://doi.org/10.1080/00150190490429321
https://doi.org/10.1080/00150190490429321
Publikováno v:
Ferroelectrics. 299:59-73
The aim of the present work is the comparative analysis of data of neutron diffraction investigation of DMAAS ((CH3)2NH2Al(SO4)2·6H2O) single crystals in paraelectric and ferroelectric phases at 293 and 135 K, neutron spectroscopy investigation of p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c0f7c4112fc8ac61be1a2c365f9ea92
https://doi.org/10.1080/00150190490428773
https://doi.org/10.1080/00150190490428773
Publikováno v:
Journal of Experimental and Theoretical Physics Letters. 78:84-87
The velocity of quasi-longitudinal acoustic (QLA) phonons in (NH4)3H(SO4)2 (TAHS) crystals was studied by Brillouin scattering in the temperature range from 295 to 430 K. It was found that the QLA phonon velocity in the vicinity of a superionic ferro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d5d4645037c51952169ffd840a06a64
https://doi.org/10.1134/1.1615535
https://doi.org/10.1134/1.1615535