Homepage ILTPE

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

Department of Magnetic Properties and Spectroscopy of Metals

Head of Department: Doctor of Sciences
Gennadiy E. Grechnev
tel: +(380)-57-3410828, fax: +(380)-57-3403370, +(380)-57-3450593, e-mail: grechnev@ilt.kharkov.ua

Brief information
Scientific fields
Achievements
Methods
Publications
Theses
Projects and grants
Cooperation
Staff
Photo-gallery


Scientific departments
Homepage ILTPE


Last update
07.04.2010
 

 The achieved scientific results

Studies of pressure effects on magnetic properties
De Haas - van Alphen effect studies
Low Temperature magnetic studies
Theoretical studies of electronic structure 
and magnetic properties 
Principal research group of Academician V. V. Eremenko
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  Svechkarev I.V.
    e-mail:svechkarev@ilt.kharkov.ua
    Doctors of Sciences, 
    Professor

    Experimentally there was observed the general trend for increase of the exchange-correlation coupling between the conduction electrons in metals with decreasing of the atomic volume.

    A large magnitude of the magnetovolume effect was observed in Ce and Yb based compounds in the intermediate valence state in the vicinity of a half-integer valence values.


up

Group of Low Temperature magnetic studies

Head of group Desnenko V. A.
e-mail:desnenko@ilt.kharkov.ua
Candidates of Sciences (Ph.D.),
Senior Research Fellow.
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.


up

Group of De Haas - van Alphen effect studies

 
Head of group Pluzhnikov V.B.
e-mail:pluzhnikov@ilt.kharkov.ua
Candidates of Sciences (Ph.D.), 
Senior researcher.

Detection and investigation of the de Haas - van Alphen effect in intermetallic transition metal compounds ÌåÂ2, and in magnetically ordered rare-earth compounds RB12 è RGa3, the later ones are also studied under pressure up to 6000 atm.


up

    Group of theoretical studies of electronic structure and magnetic properties

    Head of group Grechnev G.E.
    e-mail: grechnev@ilt.kharkov.ua
    Doctors of Sciences, 
    Senior researcher

    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.

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


    up
    Principal research group of Academician V. V. Eremenko

    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
    Doctors of Sciences, 
    Professor.

    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.

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

 
Investigated 
materials

RM
RM3
ÂÒÑÏ
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