Homepage ILTPE

Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine

Department of Magnetic and Elastic Properties of Solids

Head of Department: Doctor of Sciences
Gennadiy E. Grechnev
tel: +(380)-57-3405011, fax: +(380)-57-3403370, e-mail: grechnev@ilt.kharkov.ua

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Last update
28.08.2012
 

 The achieved scientific results

Studies of pressure effects on magnetic properties
Elastic properties of solids
Low Temperature magnetic studies
Theoretical studies of electronic structure 
and magnetic properties 

Studies of structures and magnetoelastic properties of low-dimensional systems in the region of low temperature phase transitions

Group of studies of pressure effects on magnetic properties

     
    Head of group  Panfilov A.S.
    e-mail:panfilov@ilt.kharkov.ua
    Senior Research Scientist,
    Ph.D.
    Systematic study magnetovolume effects in d-transition metals and their alloys and the identification of the main mechanisms of adjustment of the electronic spectrum of pressure.

    Study of the effect of pressure in the magnetic susceptibility of systems with variable valence rare earth elements - cerium, samarium and ytterbium.

    Study the magnetic state in magnetically oxides of manganese, cobalt and ruthenium.

    Detection of anomalies in the behavior of the magnetic susceptibility of HTSC compounds FeSe(Te) in the normal phase under pressure.

    вверх

    Group of Low Temperature magnetic studies

    Head of group Desnenko V. A.
    e-mail:desnenko@ilt.kharkov.ua
    Senior Research Scientist,
    Ph.D.
    Studies of non-collinear magnetic structures.

    Identification of magnetic field induced structural phase transitions in manganese oxides.

    Detection of giant diamagnetic peculiarities in orbital susceptibility of metals and intermetallic compounds under electronic topological transitions in band structure.


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    Research Group of the elastic properties of solids

    Head of group Fil V.D.
    e-mail:
    fil@ilt.kharkov.ua
    Principal Research Scientist,
    Doctor of Sciences
    Electronic properties of metals in normal and superconducting states.

    Vortex lattice dynamics in type-II superconductors.

    Magneto elasticity; phase transitions of different nature in solids.

    Precision measurements of the elastic modules of single crystals.

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    Group of theoretical studies of electronic structure and magnetic properties

    Head of group Grechnev G.E.
    e-mail: grechnev@ilt.kharkov.ua
    Senior Research Scientist, 
    Doctor of Sciences

    Giant orbital diamagnetism was discovered in metals and compounds, related to topological FS transitions.

    Anisotropic magnetic susceptibility of HCP transition metals was calculated ab initio.

    Theoretically studied anisotropic magnetic properties of HCP iron in the Earth inner core, and its possible relation to the seismic anisotropy of Earth.

    Theoretical investigations of electronic structure, stability, magnetic and electro-chemical properties of potential lithium batteries based on Mn oxides.

    Analysis of elastic properties of super hard materials, such as transition metals dioxides and dodecaborides.

    The study of nature of strong magnetovolume effects in highly enhanced itinerant paramagnets and weak ferromagnets, based on 3d-elements, rare-earths and actinides.

    Theoretical investigations of magnetic properties of new iron-based superconductors LaFeAsO(F) and FeSe(Te).

    Detailed calculations of electronic structures, elastic and magnetic properties of rare-earth hexaborides and dodecaborides have been performed.


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    Group of studies of structures and magnetoelastic properties of low-dimensional systems in the region of low temperature phase transitions

    Head of group Sirenko V.A.
    e-mail:sirenko@ilt.kharkov.ua
    Leading Research Scientist, 
    Doctor of Sciences

    Identification and investigation of quantum magnetization and magnetostriction oscillations in the mixed state of superconductors.

    Revealing of the twining structure appearance under formation of the antiferromagnetic dielectric phase in  Nd0.5Sr0.5MnO3 manganite.

    The complex study of the effect of irradiation by fast electrons on the structural and magnetic properties of 2H-NbSe2.

    Obtaining of the reproducible closed nanoformations of 2H-NbSe2 (nanotubes and nanowires).

    Development and construction of the autonomous compact helium combi-cryostat for X-ray studies in temperature region 10-300 K.

    Detection and explanation of the low-temperature anomalies of thermal expansion in EuBaCuO compounds along the C crystal axis, substantially below the Debye temperature.

 
Investigated 
materials

RM
RM3
GMR
CMR

CeCo2
UAl3
UGa3
UIn3
USi3
UGe3
LuGa3
TmGa3
ErGa3
CeIn3xSnx
GdIn3xSnx
Nd0.5Sr0.5MnO3
2H-NbSe2

LixMn2O4
FeGe2
FeSi
Ni3Al
TiCo
MnSi
GdM
RNi5
RuO2
CaPb3
YbPb3
 RuO2
GdM2
YbPb3
YbSn3
CaPb3
CaSn3