Group leader: Dr Božidar Cekić, experimental (TDPAC, Multiple Hydriding /dehydriding kinetics , Mossbauer)
Group members:
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Dr Vasil Koteski , theoretical (APW + lo (WIEN2k), Carr-Parrinello molecular dynamics)
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Dr Dragica Stojić , experimental (Electrocatalysis, Hydrogen production,Multiple hydriding/dehydriding kinetics )
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Dr Jelena Belošević-Čavor , theoretical (APW + lo (WIEN2k), Carr-Parrinello molecular dynamics)
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Ana Umićević , postgraduate, experimental (TDPAC, SEM, Multiple hydriding/dehydriding kinetics)
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Valentin Ivanovski, postgraduate, experimental ( TDPAC, Mossbauer spectroscopy)
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Jana Radaković , postgraduate
- Katarina Ćirić, postgraduate
- Prof. Dr Miljenko Perić , Academic ian, theoretical
Hyperfine interaction group is active under is active under the project 141022 G of Ministry of Science of RS.
A-EXPERIMENTAL
A1-Main facility:
- TDPAC 3 BaF 2 γ - γ Coincidence Spectrometer (fast-slow version)-active in wide temperature range 77-1300K, with external magnetic field up to 1.8kGauss, time resolution less than 1ns for 133-482 keV cascade of 181Ta ion probe
- TDPAC 4 BaF 2 γ - γ Coincidence Spectrometer (slow-fast version) in construction
- Mossbauer spectrometer ( in phase of realisation )
- Electrolyser
- Hydriding/Dehydriding V olumetric A pparatus (in final completition)
A fast-slow coincidence scintillation spectrometer for TDPAC experiment.
A2-Following facility in the Institute:
- XRD
- DTA, DSC
- SQUID
- SEM
- EXAFS,obtained beam time on Synchrotron (DESY) in Hamburg ,
A3-Misleading f acility - preparation of samples :
- RF Induction furnace with external coils
- Electron gun
- Arc Furnace
- Other tecniques and methods
A4 - Actual samples in consideration: (Binary and higher order mutual combinations)
- Rare Earths- Transition Metals ( Hf)
- Transition Metals ( Hf) - Transition Metals
- Hf - Transition Metals
- Very small concentrations of Transition Metals ( Hf) in Transition Metals
- Superalloys
- Semiconductors
B-THEORETICAL, Ab initio approach
( A detailed theoretical study of the structure, electronic properties and the relevant hyperfine interactions parameters of the researched samples )
- WIEN97 - FP LAPW (DFT)
- WIEN2K – APW + lo (DFT)
- Carr-Parrinello molecular dynamics
Determined parameters: The equilibrium volume, bulk moduli, density of states (DOS), band structure, electric field gradients, hyperfine magnetic fields, vibrational frequencies, vertical and adiabatic ionization energies, binding energy