Zobrazeno 1 - 10
of 21
pro vyhledávání: '"V. N. Syromyatnikov"'
Autor:
V N Syromyatnikov, V.P. Plakhty, B. Dorner, O. P. Smirnov, Yu P Chernenkov, Arsen Gukasov, S Yu Kokovin
Publikováno v:
Journal of Physics: Condensed Matter. 11:2869-2878
The spin-wave spectrum of the antiferromagnet with the garnet structure has been studied by inelastic neutron scattering on the triple-axis spectrometers IN12 and IN14 at ILL. Magnon dispersion curves were measured along and directions up to energies
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e7f92ac77e0c12614a415d5693763bb
https://doi.org/10.1088/0953-8984/11/14/003
https://doi.org/10.1088/0953-8984/11/14/003
Autor:
Yu. A. Izyumov, V. N. Syromyatnikov
Publikováno v:
Phase Transitions. 66:23-79
The phenomenological Landau theory of phase transitions (PT) is generalized for systems with degenerate atomic states. A new approach is based on the formalism of a matrix density constructed on the wave functions of a degenerate level. The space of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e193bf0f22e7c08a04841dbe63f65fdd
https://doi.org/10.1080/01411599808222118
https://doi.org/10.1080/01411599808222118
Publikováno v:
Phase Transitions. 49:1-55
The review deals predominantly with a description of martensitic phase transitions on the basis of Landau theory, using the strain of a crystal as the order parameter and the expansion of energy in powers of the strain and its gradients. The importan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c222090b69c7249ddfb12bdee3a02f79
https://doi.org/10.1080/01411599408201169
https://doi.org/10.1080/01411599408201169
Autor:
Yu. A. Izyumov, V. N. Syromyatnikov
Publikováno v:
Phase Transitions and Crystal Symmetry ISBN: 9789401073578
The phase transition from the initial phase of the crystal gives rise to a state which at the microscopic level may be specified by the occurrence of some spontaneous property on each atom. This property is described by a scalar, a vector or a tensor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05f078e0303d45a10dca28487d59f124
https://doi.org/10.1007/978-94-009-1920-4_2
https://doi.org/10.1007/978-94-009-1920-4_2
Autor:
Yu. A. Izyumov, V. N. Syromyatnikov
Publikováno v:
Phase Transitions and Crystal Symmetry ISBN: 9789401073578
The phenomenological method of analyzing phase transitions is based on the construction of a thermodynamic potential Φ which may be represented as a polynomial expansion $$ \Phi = \sum\limits_n {{P_n}} \left( {\left\{ \eta \right.} \right.\left. {\l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f363ed1733bb753a16ae4ca719d7eb7
https://doi.org/10.1007/978-94-009-1920-4_4
https://doi.org/10.1007/978-94-009-1920-4_4
Autor:
V. N. Syromyatnikov, Yu. A. Izyumov
Publikováno v:
Phase Transitions and Crystal Symmetry ISBN: 9789401073578
Spontaneous crystal symmetry lowering at a phase transition occurs both as a result of a decrease in the number of rotational symmetry elements and as a result of the reduction of some translations. This reduction gives rise to a new lattice type whi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::24f5c5314b43146fc87c2c7cfb739094
https://doi.org/10.1007/978-94-009-1920-4_3
https://doi.org/10.1007/978-94-009-1920-4_3
Autor:
V. N. Syromyatnikov, Yu. A. Izyumov
Publikováno v:
Phase Transitions and Crystal Symmetry ISBN: 9789401073578
The behavior of the various systems in the vicinity of second-order phase transitions can be understood on the basis of the order parameter concept introduced by Landau [1,2]. The order parameter (OP) η specifies a new physical property that arises
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b038fd2947a51e208b8b68c0c50e330
https://doi.org/10.1007/978-94-009-1920-4_1
https://doi.org/10.1007/978-94-009-1920-4_1
Autor:
Yu. A. Izyumov, V. N. Syromyatnikov
Publikováno v:
Phase Transitions and Crystal Symmetry ISBN: 9789401073578
The space groups were introduced for describing the symmetry of crystal structures. A crystal structure is a spatially ordered collection of atoms. The relative position of atoms defines the symmetry of a given crystal, that is, a set of rotations, r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::776e66a7c98f3efe4600b30ae830da19
https://doi.org/10.1007/978-94-009-1920-4_10
https://doi.org/10.1007/978-94-009-1920-4_10
Autor:
Yu. A. Izyumov, V. N. Syromyatnikov
Publikováno v:
Phase Transitions and Crystal Symmetry ISBN: 9789401073578
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d220d021843219fdde9f7ea2ec522e6c
https://doi.org/10.1007/978-94-009-1920-4_8
https://doi.org/10.1007/978-94-009-1920-4_8