Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Wieslawa Sikora"'
Publikováno v:
Open Physics, Vol 14, Iss 1, Pp 559-569 (2016)
In this paper we focus on the new version of computer program MODY for calculations of symmetryadapted functions based on the theory of groups and representations. The choice of such a functional frame of coordinates for description of ordered struct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75ebd3c8f9bfa8757743e16684d3fe9d
https://doi.org/10.1515/phys-2016-0068
https://doi.org/10.1515/phys-2016-0068
Publikováno v:
Journal of Solid State Chemistry. 230:325-336
A complex scheme of atomic displacements (modes) that break the Fd 3 ¯ m symmetry of the high-temperature (Tc>395 K) cubic phase of Rb0.91Nb0.96W1.04O5.98 and ultimately lead to a phase transition to the tetragonal phase was determined using the gro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::679f1037444bd9f2b42f1e79c4f4c7a7
https://doi.org/10.1016/j.jssc.2015.07.021
https://doi.org/10.1016/j.jssc.2015.07.021
Autor:
K. Koźlak, Arkadiusz Kupczak, Janusz Przewoźnik, Wieslawa Sikora, N. Tsapatsaris, O. Prokhnenko, J. Czub, Łukasz Gondek, Andreas Hoser
Publikováno v:
Acta Materialia. 81:161-172
In this paper we focus our attention on the structural and magnetic properties of the RPdIn (R = La, Ce, Pr, Nd, Ho, Er) deuterides. The RTIn compounds having the ZrNiAl-type of crystal structure were suspected of breaking the Switendick 2 A limit on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7af9ffaa8ead79255ac83e67d0feb0a
https://doi.org/10.1016/j.actamat.2014.08.024
https://doi.org/10.1016/j.actamat.2014.08.024
Publikováno v:
Journal of Applied Crystallography. 47:1666-1675
Knowledge of how chemically predefined clusters of atoms are arranged in a crystal and how they can reorientate under external excitations is of great importance for structure determination and a description of structural transformations. In general,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2573433c79a87d5dc6744635eefa7d62
https://doi.org/10.1107/s1600576714017269
https://doi.org/10.1107/s1600576714017269
Autor:
Wieslawa Sikora, A. Kuna
Publikováno v:
Acta Physica Polonica A. 113:1211-1224
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90e72afeec3b518f283099c56f69dbfc
https://doi.org/10.12693/aphyspola.113.1211
https://doi.org/10.12693/aphyspola.113.1211
Publikováno v:
Journal of Alloys and Compounds. :423-428
Absorption of hydrogen in the intermetallic compounds of Rare Earths and Yttrium with 3-d metals causes structure distortions and transformations depending on hydrogen content and temperature. One of the most intriguing problems for the unsaturated h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a6190877b2aa3e8d3f09e4552b06bbc
https://doi.org/10.1016/j.jallcom.2006.12.092
https://doi.org/10.1016/j.jallcom.2006.12.092
Publikováno v:
Journal of Alloys and Compounds. 442:61-69
In this paper, the recent developments in practical applications of symmetry analysis are described. The theoretical basis shortly described in Section 1 has been implemented in several computer applications, one of which is the program “MODY-win
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6cedac4d68850d5f94055aafa39c39a
https://doi.org/10.1016/j.jallcom.2006.08.345
https://doi.org/10.1016/j.jallcom.2006.08.345
Publikováno v:
Journal of Physics: Conference Series. 30:237-248
The paper describes the application of symmetry analysis to construction of possible quadrupolar ordering modes in a crystal with a given space group symmetry. The matrix representing a given tensor property (e.g. quadrupolar moment) is converted to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e95035c42b859c29767603ee5741c9c8
https://doi.org/10.1088/1742-6596/30/1/029
https://doi.org/10.1088/1742-6596/30/1/029
Publikováno v:
Journal of Applied Crystallography. 37:1015-1019
This paper describes a computer program, based on the theory of groups and representations, which calculates symmetry-adapted functions used for the description of various ordered structures in crystals. It is assumed that the ordered structure, whic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::456f30db9ba39a423feb5f9bcdc69cd6
https://doi.org/10.1107/s0021889804021193
https://doi.org/10.1107/s0021889804021193
Publikováno v:
Journal of Physics: Condensed Matter. 15:5279-5296
Neutron diffraction studies of polycrystalline R3Cu4Sn4 (R = Tb, Dy, Ho, Er) intermetallic compounds with the orthorhombic Gd3Cu4Ge4-type crystal structure indicate the existence of different magnetic structures. Rare earth atoms occupy two non-equiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::703fc1813d99dd8f5252d62bf956f50c
https://doi.org/10.1088/0953-8984/15/30/310
https://doi.org/10.1088/0953-8984/15/30/310