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Information × Registration Number 0212U008533, 0112U003752 , R & D reports Title Intermetallic compounds - new superconductors with non-centrosymmetric structures popup.stage_title Head Kotur Bogdan, Registration Date 14-01-2013 Organization Ivan Franko National University of Lviv popup.description2 18 alloys were synthetized: 1 - Ni55P45, 2 - Ni55.5P44.5, 3 - Ni50.5Co5.0P44.5, 4 - Ni50.5Fe5.0P44.5, 5 - Ni55.5P33.4As11.1, 6 - CoGa10 (single crystals of CoGa3), 7 - CoGa3 (single crystals of CoGa3), 8 - Mn0.05Fe0.95Ga3, 9 - Mn0.1Fe0.9Ga3, 10 - Mn0.4Fe0.6Ga3, 11 - Mn0.8Fe0.2Ga3, 12 - Co0.15Fe0.75Ga3, 13 - Co0.05Fe0.95Ga3, 14 - BaPtSi3, 15 - SrPtSi3, 16 - BaPdSi3, 17 - SrPdSi3, 18 - SrPtGe3, 19 - BaPdGe3, 20 - SrPdGe3. Novel ternary compounds EpTMX3 (Ep = Ba, Sr; TM = Pd, Pt; X = Si, Ge) crystallize in the tetragonal BaNiSn3-type structure with c/a ~ 2.2 and exhibit superconductivity below 3 K. The BaNiSn3-type structure with c/a ~ 2.2 and exhibit superconductivity below 3 K, space group I4mm, does not possess a centre of inversion due to the absence of a mirror plane perpendicular to the c-axis. In the study we characterize the normal - and the superconducting state of EpTMX3 by various bulk measurements and compare the results with band structure calculations, revealing reliable information on the electronic density of states at the Fermi energy as well as on the splitting of bands along high-symmetric directions in the proximity of the Fermi energy. Electronic structure calculations were performed for Ni5P4 and SrPtGe3.The solid solution on the basis of binary FeGa3 compound was investigated by X-ray and electron probe microanalysis for the influence of Mn-doping on the crystal structure and physical properties. Substitution of Fe by Mn in FeGa3 does not change its structure type and preserve the structure of the binary parent compound (FeGa3). Binary parent compound FeGa3 is diamagnetic. In contrary ternary alloys of solid solution Fe1-xMnxGa3 are paramаgtic. Product Description popup.authors Бабіжецький Володимир Станіславович Котур Богдан Ярославович Левицький Володимир Олексійович Міліянчук Христина Юліанівна popup.nrat_date 2020-04-02 Close