88 citations · 424 across the 22 of their papers we have counts for
23 papers
Dynamics of Fe atoms in Fe-gluconate as seen by Mössbauer spectroscopy
S. M. Dubiel, J. Cieslak
Fe-gluconate was studied by means of the Mössbauer spectroscopy in the temperature interval of 80-305K. The measured spectra were analyzed in terms of two subspectra and, alternati…
Magnetism of sigma-phase Fe-Mo alloys: its revealing and characterization
J. Cieslak, S. M. Dubiel, M. Reissner
A low-temperature magnetism was revealed in a series of sigma-Fe(100-x)Mo(x) alloys (x=45-53). Its characterization has been done using vibrating sample magnetometry, Mössbauer spe…
Effect of quenching medium on short-range order in Fe-rich Fe-Cr alloys
Stanislaw M. Dubiel, Jakub Cieslak, Jan Zukrowski
Effect of a quenching medium (water, liquid nitrogen and block of brass) on a short-range ordering in Fe(100-x)Cr(x) (x less than 19) alloys was studied with the Moessbauer spectro…
Evaluation of the Debye temperature for iron cores in human liver ferritin and its pharmaceutical analogue Ferrum Lek using Mossbauer spectroscopy
S. M. Dubiel, J. Cieslak, I. V. Alenkina +2
An iron polymaltose complex Ferrum Lek used as antianemic drug and considered as a ferritin analogue and human liver ferritin were investigated in the temperature range from 295K t…
Effect of thermal history on the short-range order in Fe-Cr alloys
S. M. Dubiel, J. Cieslak
Effect of a thermal history of Fe(100-x)Cr(x) (x < 20) samples on a Cr atoms distribution within the first (1NN) and the second (2NN) neighbor-shells was studied with the Mössbauer…
Effect of magnetism on the lattice dynamics in the sigma-phase Fe-Cr alloys
S. M. Dubiel, J. Cieslak, M. Reissner
Anomalies in the temperature dependences of the recoil-free factor, f, and the average center shift, <CS>, measured by 57-Fe Mossbauer Spectroscopy, were observed for the first tim…
The Debye temperature of sigma-phase Fe-Mo compounds as determined with Mössbauer spectroscopy
J. Cieslak, S. M. Dubiel
The Debye temperature, T_D, of sigma-phase Fe_(100-x)Mo_x compounds with 47 < x < 56.7 was determined from the temperature dependence of the centre shift of Mössbauer spectra recor…
Theoretical study of magnetic properties and hyperfine interactions in -FeV alloys
Jakub Cieslak, Janusz Tobola, Stanislaw M. Dubiel
Electronic structure Korringa-Kohn-Rostoker calculations for the -phase in FeV were performed in compositional range of its occurance ()…
Sigma-phase in Fe-Cr and Fe-V alloy systems and its physical properties
Stanislaw M Dubiel, Jakub Cieslak
A review is presented on physical properties of the sigma-phase in Fe-Cr and Fe-V alloy systems as revealed both with experimental -- mostly with the Mossbauer spectroscopy -- and…
Study of phase stability in the -FeCr system
J. Cieslak, J. Tobola, S. M. Dubiel
Formation energy of the -phase in the Fe-Cr alloy system, , was computed versus the occupancy changes on each of the five possible lattice sites. Its dependence on a number…
Magnetic properties of -FeCr alloy as calculated with the charge and spin self-consistent KKR(CPA) method
J. Cieslak, J. Tobola, S. M. Dubiel +1
Magnetic properties of a FeCr alloy calculated with the charge and spin self- consistent Korringa-Kohn-Rostoker (KKR) and combined with coherent potential approxi…
Site Occupancy and Lattice Parameters in Sigma-Phase Co-Cr alloys
Jakub Cieslak, Stanislaw M. Dubiel, Michael Reissner
Neutron diffraction technique was used to study distribution of Co and Cr atoms over different lattice sites as well as lattice paramaters in sigma-phase Co100-xCrx compounds with…
Short-Range Order in Fe-Rich Fe-Cr Alloys as Revealed by Mössbauer Spectroscopy
S. M. Dubiel, J. Cieslak
Distribution of Cr atoms in Fe_{100-x}Cr_x alloys with x \le 25 within the first two coordination shells, 1NN-2NN, around probe 57Fe atoms was studied by means of the Mössbauer Spe…
On the Debye temperature in sigma-phase Fe-V alloys
Jakub Cieslak, Michael Reissner, Stanislaw M. Dubiel +2
A series of sigma-phase Fe_{100-x}V_x samples with 34.4 < x < 59.0 were investigated by neutron and X-ray diffraction and Mossbauer spectroscopy (MS) techniques. The first two meth…
Relationship between Colours of Ochre from Roussillon and Content of Iron-Bearing Minerals
S. M. Dubiel, J. Cieslak, J. Tarasiuk +1
Nine samples of ochre originating from the Sentier des Ocres near Roussillon, France, were studied with Mossbauer spectroscopy and Spectro-photo-colorimetry. The former yielded a q…
Effect of time and storing conditions on iron forms in ferrous gluconate and Ascofer
R. Gozdyra, S. M. Dubiel, J. Cieslak
Antianemic medicament Ascofer and ferrous gluconate, its basic iron bearing ingredient, were studied with the use of Mossbauer spectroscopy. Room temperature spectra gave a clear e…
Vibrational properties of alpha- and sigma-phase Fe-Cr alloy
S. M. Dubiel, J. Cieslak, W. Sturhahn +4
Experimental investigation as well as theoretical calculations, of the Fe-partial phonon density-of-states (DOS) for nominally Fe_52.5Cr_47.5 alloy having (a) alpha- and (b) sigma-…
Debye temperature of disordered bcc-Fe-Cr alloys
S. M. Dubiel, J. Cieslak, B. F. O. Costa
Debye temperature, TD, of Fe100-xCrx disordered alloys with 0<x<99.9 was determined from the temperature dependence of the centre shift of 57Fe Mossbauer spectra recorded in the te…
Electronic structure of the sigma-phase in paramagnetic Fe-V alloys. Experimental and theoretical study
J. Cieslak, J. Tobola, S. M. Dubiel
The electronic structure of -phase FeV compounds with 33.3 was calculated from the charge self-consistent Korringa-Kohn-Rostoker method. For the f…
Unusual dynamics of Fe atoms in chromium matrix
S. M. Dubiel, J. Zukrowski, J. Cieslak
57Fe site Mossbauer Spectroscopy (MS) was used to investigate a dynamics of 57Fe atoms embedded into chromium lattice as impurities. From the Mossbauer spectra recorded in the temp…
Detection of sub-lattice magnetism in sigma-phase Fe-V compounds by zero-field NMR
S. M. Dubiel, J. R. Tozoni, J. Cieslak +3
The first successful measurements of a sub-lattice magnetism with 51V NMR techniques in the sigma-phase Fe(100-x)Vx alloys with x = 34.4, 39.9 and 47.9 are reported. Vanadium atoms…
Magnetic ordering above room temperature in the sigma-phase of Fe66V34
Jakub Cieslak, Benilde F. O. Costa, Stanislaw M. Dubiel +2
Magnetic properties of four sigma-phase Fe_(100-x)V_x samples with 34.4<x<55.1 were investigated by Mossbauer spectroscopy and magnetic measurements in the temperature interval 5-3…
Anomalous behavior of the Debye temperature in Fe-rich Fe-Cr alloys
B. F. O. Costa, J. Cieslak, S. M. Dubiel
Debye temperature, , of Fe-rich FeCr disordered alloys with was determined from the temperature dependence of the central shift of Mössbauer sp…