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A. A. Amirov M. M. Guseynov D. M. Yusupov N. Z. Abdulkadirova Y. A. Chaudhary S. T. Bendre 《Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques》2018,12(4):732-736
The structure of ceramic BiFe1?xZnxO3 multiferroic samples is investigated using the X-ray diffraction method and Mössbauer spectroscopy. X-ray diffraction analysis of the samples indicates the existence of the Bi12(Bi0.5Fe0.5)O19.5 impurity phase. High-temperature heating of the samples generates additional phases. The parameters of the Mössbauer spectra depend on the zinc concentration. In this case, for pure bismuth ferrite, the spectrum is a superposition between two Zeeman sextets and two paramagnetic doublets arising from two nonequivalent magnetic and electrical positions occupied by iron ions at the crystallattice sites of a sample. The replacement of iron ions with zinc ions substantially affects the spectrum parameters. This is probably related to changes in the spin-cycloid structure typical of multiferroics, the destruction of which stimulates the appearance of significant magnetoelectric interactions. 相似文献
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Abdulkadirova N. Z. Aliev A. M. Gamzatov A. G. Gebara P. 《Physics of the Solid State》2020,62(5):841-844
Physics of the Solid State - The specific heat and the magnetocaloric effect of intermetallic LaFe11.2 – xMnxCo0.7Si1.1 (x = 0, 0.1, 0.2, 0.3) compounds have been measured... 相似文献
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In this paper the Hole Quasichemical Group-Contribution model (HM) is used to describe phase diagram peculiarities of multicomponent aqueous systems containing hydrocarbons and alcohols. The model correctly describes liquid-liquid (LL), liquid-liquid-vapour (LLV), liquid-vapour (LV) and vapour-vapour equilibria (VVE), and critical and azeotrope curves. The potential use of the HM in the prediction of the solubilities of hydrocarbons in near-critical water and the densities of coexisting phases in the critical region of the system n-hexane-water are presented. 相似文献
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