Institute of Physics of Materials AS CR, v. v. i. > Laboratories > Electrical and Magnetic Properties

Electrical and Magnetic Properties

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Electrical and magnetic properties Magnetometers (up to 9T, and 800°C), possibility of measurement: DC resistivity, AC resistivity, Hall effect, heat transmission, heat capacity measurements, magnetoresistance measurements. Quadrupole mass spectrometer, Mössbauer spectrometer.

Software CONFIT2000 version 4.12.39 (new): Mössbauer spectra fitting

This application allows a complex treatment of Mössbauer spectra starting from a setting of the background and of the individual components according to the selected model by the mouse drag-and-drop technique. It is designed for the spectroscopy of 57Fe and 119Sn isotopes with nuclear spin values of 1/2 and 3/2. An original method has been applied combining a non-linear least-squares procedure with the Fast Fourier Transform technique. An improved matrix formalism allows one to construct nearly all imaginable physical models of Mössbauer spectra supported by a computer-aided matrix model design. It is possible to introduce not only hyperfine magnetic field distributions, but now also doublets quadrupole splitting distribution with a Gaussian profile. In the connection with the distribution it is always supposed that the quadrupole interaction is much weaker than the magnetic one. When the final thickness of the sample has to be considered, the transmission integral calculation can be established. A special parameter can be introduced that characterises the increase in the width of all spectra lines in dependence on their distance from the spectrum middle (on the absolute velocity). The fitted spectra can be taken in the transmission or back-scattering (conversion electrons) geometry. The fitting process is very fast also for complicated spectra.

Glow Discharge Optical Emission Spectrometry (GD-OES) - GD-PROFILER 2 by HORIBA Jobin Yvon

Contact: Ing. Eva Švábenská, Ph.D.
RF Glow Discharge Optical Emission Spectrometry (RF-GD-OES) can provide both the surface and bulk composition to all elements for almost all solid materials, including metals, metal coatings, semiconductors, polymer coatings, glass, ceramics, etc.

X-ray powder diffractometer – Empyrean

Contact: Ing. Pavla Roupcová, Ph.D.
X-ray powder diffractometer Empyrean (PanAnalytical) with Bragg-Brentano and parallel beam geometry.

Physical Property Measurement System (PPMS©) 9T

Contact: Ing. Oldřich Schneeweiss, DrSc.
EverCool II (2 - 400 K; 0 - 9 T)

VSM magnetometers

5 – 1073 K

Planetary Micro Mill PULVERISETTE 7 premium line

● optimal for hard, medium-hard, and britttle materials; ● 2 milling positions; ● grinding size of the bowl 80 ml; ● sample quantity 20 ml (min), 70 ml (max); ● material of grinding tools: tempered steel, stainless steel, zirconium oxide; ● dry/wet grinding process; ● milling in inert atmosphere; ● 100 up to 1100 rpm rotational speed

Mössbauer spectrometers

Contact: Ing. Oldřich Schneeweiss, DrSc.
5 – 1300 K

Furnaces for heat treatment of materials

Contact: Ing. Oldřich Schneeweiss, DrSc.
Oil free vacuum or gas atmosphere, up to 1300 K

Remagraph-Remacomp Combination C710

Contact: Ing. Oldřich Schneeweiss, DrSc.
at room temperature

Spark erosion system for material synthesis

Contact: Ing. Oldřich Schneeweiss, DrSc.
Powder production

Equipments for measurements of electrical resistivity

Contact: Ing. Pavla Roupcová, Ph.D.
300 – 1000 K

Equipments for measurements of magnetoresistance

Contact: Ing. Pavla Roupcová, Ph.D.
80 – 900 K, 1 T