Search Results - "Vrba, Vlastimil"

Lamb–Mössbauer factor of powders determined by Mössbauer spectroscopy with resonant detector by Novák, Petr, Schlattauerová, Tereza, Procházka, Vít, Kopp, Josef, Vrba, Vlastimil

“…The Lamb–Mössbauer factor is a crucial material parameter for the proper quantitative analysis of Mössbauer experiments. We report on a method for determining…”
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Formation of Cobalt Ferrites Investigated by Transmission and Emission Mössbauer Spectroscopy by Prochazka, Vit, Burvalova, Anezka, Vrba, Vlastimil, Kopp, Josef, Novak, Petr

“…This study focuses on cobalt and iron ordering within a ferrite structure CoxFe3-xO4, formed during a solid-state reaction of α-Fe2O3 and CoCl2. A unique…”
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Microwave-Enhanced Crystalline Properties of Zinc Ferrite Nanoparticles by Ochmann, Martin, Vrba, Vlastimil, Kopp, Josef, Ingr, Tomáš, Malina, Ondřej, Machala, Libor

“…Two series of ZnFe2O4 mixed cubic spinel nanoparticles were prepared by a coprecipitation method, where a solution of Fe3+ and Zn2+ was alkalised by a solution…”
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Successive Grinding and Polishing Effect on the Retained Austenite in the Surface of 42CrMo4 Steel by Pechoušek, Jiří, Kuzmann, Ernö, Vondrášek, René, Olina, Anna, Vrba, Vlastimil, Kouřil, Lukáš, Ingr, Tomáš, Král, Petr, Mashlan, Miroslav

“…Low-alloy 42CrMo4 steels were studied by 57Fe Mössbauer spectroscopy (MS), X-ray diffractometry (XRD), and Energy Dispersive X-ray Spectroscopy (EDS)…”
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On the Formation of Nanocrystalline Grains in Metallic Glasses by Means of In-Situ Nuclear Forward Scattering of Synchrotron Radiation by Smrčka, David, Procházka, Vít, Vrba, Vlastimil, Miglierini, Marcel B

“…Application of the so-called nuclear forward scattering (NFS) of synchrotron radiation is presented for the study of crystallization of metallic glasses. In…”
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Single‐Phase Precursors for the Preparation of Spinel Ferrites via Oxalate Route: the Study of Cobalt Ferrite Synthesis by Lisníková, Soňa, Kopp, Josef, Vrba, Vlastimil, Novák, Petr

“…This work explores the benefits of single‐phase oxalate precursors for the preparation of spinel ferrites by thermal decomposition. A direct comparison between…”
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Lamb-Mössbauer factor determination by resonant Mössbauer spectrometer by Procházka, Vít, Novák, Petr, Stejskal, Aleš, Dudka, Michal, Vrba, Vlastimil

“…We describe an efficient method for the determination of the Lamb-Mössbauer factor using a resonant Mössbauer spectrometer. It is based on a synchronous…”
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Autotuning procedure for energy modulation in Mössbauer spectroscopy by Procházka, Vít, Novák, Petr, Vrba, Vlastimil, Stejskal, Aleš, Dudka, Michal

“…•Precise control of the gamma photon energy modulation.•Easy implementation to number of different instrumentation platforms.•Possibility to eliminate…”
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Co‐Precipitation of Fe−Cu Bimetal Oxalates in an Aqueous Solution and Their Thermally Induced Decomposition by Kopp, Josef, Novák, Petr, Lisníková, Soňa, Vrba, Vlastimil, Procházka, Vít

“…This work focuses on the preparation of bimetal Fe−Cu oxalates by a co‐precipitation reaction in an aqueous solution and subsequently on their thermally…”
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Identification of spatial magnetic inhomogeneities by nuclear forward scattering of synchrotron radiation by Vrba, Vlastimil, Procházka, Vít, Miglierini, Marcel

“…Spatially confined magnetic inhomogeneities were revealed by measuring nuclear forward scattering time spectra on the same sample in two different geometric…”
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A dual Mössbauer spectrometer for material research, coincidence experiments and nuclear quantum optics by Stejskal, Aleš, Procházka, Vít, Dudka, Michal, Vrba, Vlastimil, Kočiščák, Jan, Šretrová, Pavla, Novák, Petr

“…A newly developed dual Mössbauer spectrometer with an integrated time-to-digital converter (TDC) is described in detail. This spectrometer enables variety of…”
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Advanced approach to the analysis of a series of in-situ nuclear forward scattering experiments by Vrba, Vlastimil, Procházka, Vít, Smrčka, David, Miglierini, Marcel

“…This study introduces a sequential fitting procedure as a specific approach to nuclear forward scattering (NFS) data evaluation. Principles and usage of this…”
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Formation of Cobalt Ferrites Investigated by Transmission and Emission Mössbauer Spectroscopy by Prochazka, Vit, Burvalova, Anezka, Vrba, Vlastimil, Kopp, Josef, Novak, Petr

“…This study focuses on cobalt and iron ordering within a ferrite structure CoxFe3-xO4, formed during a solid-state reaction of ?-Fe2O3 and CoCl2. A unique…”
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Time differential 57Fe Mössbauer spectrometer with unique 4π YAP:Ce 122.06keV gamma-photon detector by Novak, Petr, Pechousek, Jiri, Prochazka, Vit, Navarik, Jakub, Kouril, Lukas, Kohout, Pavel, Vrba, Vlastimil, Machala, Libor

“…This paper presents a conceptually new design of the 57Fe Time Differential Mössbauer Spectrometer (TDMS) with the gamma-photon detector optimized for…”
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Time differential 57Fe Mössbauer spectrometer with unique 4π YAP:Ce 122.06 keV gamma-photon detector by Novak, Petr, Pechousek, Jiri, Prochazka, Vit, Navarik, Jakub, Kouril, Lukas, Kohout, Pavel, Vrba, Vlastimil, Machala, Libor

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Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses by Miglierini, Marcel B., Procházka, Vít, Vrba, Vlastimil, Švec, Peter, Janičkovič, Dušan, Matúš, Peter

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Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses by Miglierini, Marcel B, Procházka, Vít, Vrba, Vlastimil, Švec, Peter, Janičkovič, Dušan, Matúš, Peter

“…We demonstrate the use of two nuclear-based analytical methods that can follow the modifications of microstructural arrangement of iron-based metallic glasses…”
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Towards Flexible Intensity Control of Resonantly Scattered $\gamma$-Rays Using Multi-Frequency Vibrating Resonant Absorber by Stejskal, Aleš, Vrba, Vlastimil, Procházka, Vít

“…We report a method for coherent control of $\gamma$-photons, enabling the shaping of $\gamma$-ray intensity in nearly arbitrary waveforms. Different intensity…”
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