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Materials Science Poland
2007 Vol. 25, No. 2 363--369
EN Mössbauer polarimetry was used for investigations of orientations of Fe magnetic moments in a AFe-Mn system. External magnetic field was applied to single crystal samples. Since the hyperfine field is a vector quantity, it forms a vector sum with the external magnetic field, and this quantity obviou[...]
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Nukleonika
EN Mössbauer measurements of a Fe-based, bcc multicomponent alloys with concentration of non-ferrous element x = (0.1, 0.3 and 0.6) were performed. The effective thickness parameters and the second order Doppler shifts were determined as a function of temperature. The results indicate an apparent decre[...]
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Nukleonika
EN Magnetic nanowires of Fe, Fe-Co, and Fe-Ni alloy and layered structure were prepared by electrochemical alternating current (AC) deposition method. The morphology of the nanowires in and without the matrix was studied by energy dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM),[...]
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Nukleonika
EN CEMS measurements of a 57Fe foil were performed with unpolarized and polarized radiation. It is shown that the experimental results permit determination of important characteristics of a magnetic texture, an average square of the cosine((gamma-m)2) and an average cosine (gamma-m).
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Nukleonika
EN Local hyperfine interactions on Fe nuclei in UFe5Sn compound were determined in Mössbauer experiment. The analysis of the Mössbauer spectra measured at room temperature reveals the presence of two doublets only. Absorption line width indicates that neither distribution of quadrupole splitting nor is[...]
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Nukleonika
EN The paper shows the possibility of reconstruction of the distribution of hyperfine field parameters without prior assumptions concerning correlations between parameters. The method used is the maximum entropy method and the distributions considered concern the magnetic field and isomer shift. The re[...]
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Materials Science Poland
2006 Vol. 24, No. 3 753--759
EN The Mössbauer polarimetry are used for investigation of orientation of the Fe magnetic moments in nanocrystalline Fe0.48Al0.52 disordered alloy prepared my mechanical grinding. Local Fe magnetic moments and their contributions to the net magnetization at the selected external fields and temperatures[...]
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Nukleonika
2015 Vol. 60, No. 1 127--131
EN The hyperfi ne fi elds and atomic ordering in Ni1−xFexMnGe (x = 0.1, 0.2, 0.3) alloys were investigated using X-ray diffraction and Mössbauer spectroscopy at room temperature. The X-ray diffraction measurements show that the samples with x = 0.2, 0.3 crystallized in the hexagonal Ni2In-type of struc[...]
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Nukleonika
EN X-ray diffraction measurements and Mössbauer spectroscopy with and without external magnetic field parallel to beam direction have been performed for Fe1-xNix (x = 0.25, 0.30, 0.35) alloys. The compositions of the studied alloys were chosen in order to cover the concentration range where the fcc - b[...]
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88%
Nukleonika
EN Mössbauer measurements were performed on single crystals gamma-Mn60Fe37Cu3 in an external field of 1.3 T at room temperature. The hyperfine field distribution can be described as a vector sum of the external and internal fields. In addition, anisotropic response of magnetic moments was detected. The[...]
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Nukleonika
EN X-ray diffraction measurements and Mossbauer spectroscopy with external magnetic field were carried out on (Cr0.99 57Fe0.01)3+xSi-x alloys. The Mossbauer spectra for A15 type of structure can be described by superposition of single line S(1) and two doublets D(1) and D(2). The relative ratio of the [...]
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