Structure analysis of powder samples is used for determination of atomic structure for compounds where single crystals are not available or hardly obtainable. The full text >>
Hardness and stiffness of materials are different quantities describing properties of solids. Stiffness describes how much it resists being temporarily stretched or compressed, springing back when force
is released. In contrast, its hardness is resistance of material to permanent shape change, which happens when atoms are pushed to new locations. The full text >>
OD structures (abbreviated from Ordered-disordered) are composed of layers, either corresponding to real structure building units, or formally selected. The structure is built up of stacking of these layers according to the law known as the vicinity condition, representing a set of special operations – shifts and/or rotations. This condition is ambiguous, that means that always exists more than one possibility how the consecutive layers can be stacked. The full text >>
Protein crystallography is one of the key techniques of structural biology and is focused on determination of three-dimensional structure of proteins or nucleic acids by the means of single crystal x-ray diffraction. The full text >>
Our focus is on qualitative and quantitative understanding of relation
between geometric and spectroscopic properties of materials, with
special emphasis on clusters and nanostructures. Studying these
materials is interesting both for fundamental reasons (they form a
link between atoms and solids) and for practical reasons (because of
potential use of these materials in information and other
technologies).
These crystalline - promising for the spintronics - materials are
prepared as nanolayers by the low-temperature molecular epitaxy and
their properties are affected by the sample surfaces. Surface
sensitive methods provide information about the crystallography of
their reconstructed surfaces and about their electronic and magnetic
properties.
The aim of this research project that is realized in cooperation with Institute of Glass and Ceramics of the University of Chemical Technology, Prague is systematic study of the influence of electrons injected under the surface of silica glasses irradiated by the electron beam on the stimulated diffusion of alkali ions and cons The full text >>
Structure analysis of single crystals focuses especially on measurement and calculation atomic structures of crystals for other research groups. The full text >>
Department of structure analysis has gained world-wide reputation in solution of difficult structures, which cannot be solved with automatic or semi-automati The full text >>
Precession electron diffraction (PED) is a newly emerged diffraction method that can be used for determination of atomic structure of very small crystall The full text >>