Laboratory of the Resonance Properties of Magnetically Ordered Media
Laboratory Staff
Advanced developments
Selected Publications
The Laboratory founded in 1971 had been led by Dr. German A. Petrakovskii, Honored Science Worker of the Russian Federation, till 2008. The current Lab’s head is Dr. Anatolii I. Pankrats. The today’s staff comprises 17 researches and engineers.
Research Focus
- Search for new, magnetically unexplored materials; synthesis of compounds and investigation of their magnetic structure, physical and resonance properties; theoretical analysis of the exchange interactions in crystals.
- Experimental study of magnetic phase diagrams and magnetic and resonance properties of magnets with complex magnetic structures; symmetrical analysis of crystals; construction of microscopic and phenomenological theories of the occurrence of incommensurable and noncollinear magnetic structures.
- Study of the magnetic and transport properties of substances based on 3d and 4f metals sulfides.
Methods and Techniques
- Flux synthesis of single crystals; solid-state synthesis; high-rate melt-quenching amorphization.
- SQUID magnetometry and resistivity measurements for studying magneto- and electrostatic characteristics of materials.
- ESR, AFMR, and optical rf double resonance for studying nonmetal magnets.
- Mossbauer spectroscopy.
- Analytical calculations and numerical simulation.
Collaboration
- Laue-Langevin Institute, Grenoble, France
- Paul Scherrer Institute, Villigen, Switzerland
- University of Fukui, Japan
- Osaka University, Japan
- Institute of Physics, Polish Academy of Sciences
- Institute of Solid State and Semiconductor Physics, National Academy of Science of Belarus
- Institute of Solid State Physics, University of Latvia
- Institute of Metal Physics, Russian Academy of Sciences, Ural Branch
- Institute of Catalysis, Russian Academy of Sciences, Siberian Branch
- Institute of Inorganic Chemistry, Russian Academy of Sciences, Siberian Branch
- Institute of Biophysics, Russian Academy of Sciences, Siberian Branch
- Institute of Chemistry and Chemical Technology, Russian Academy of Sciences, Siberian Branch
Equipment
1. Laboratory complex for synthesis of crystals and amorphous compounds.
2. SQUID magnetometer.
3. MS1104Em Mossbauer spectrometer.
4. ESR spectrometer complex for observation and detection of the first or second ESR signal derivatives, determination of the number of paramagnetic centers in a substance, and investigations of temperature and angular dependences of spectral parameters.
5. Magnetic resonance spectrometers (stationary and pulsed magnetic fields).
6. Optical rf double resonance spectrometer.
7. Automated setup for measuring the magnetocaloric effect and studying the transport properties of crystals with sensitivity of 0.01 K in magnetic fields up to 25 kOe. The resistivity, magnetoimpedance, and Hall effect are measured in the dc range 5 µA--5mA at voltages of 0.5--10 V.
8. Setup for measuring permittivity at frequencies up to 100 kHz in the temperature range 4.2--300 K in magnetic fields up to 15 kOe.