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Information × Registration Number 0216U005451, 0113U000335 , R & D reports Title New chalcogenides of rare earth metals: synthesis, structure and properties. popup.stage_title Head Gulay Lubomir Dmitrievich, Registration Date 28-01-2016 Organization Lutsk National Technical University popup.description2 The work is devoted to the complex study of the nature of the interaction of silicon, germanium, Stanum, of lead, indium transition and rare earth metals in chalcogenide systems R2S3 - MS - ZS2 (R = RZM; M = Mn, Fe, Co, Ni; Z = Si, Ge, Sn ) and some related, construction of insulated sections of the systems; delineating solid solutions, the study crystal structures and physical properties of ternary and quaternary compounds that are formed in these systems; establishing patterns of interaction between the components and features crystal chemistry of structural types. Methods of X-ray diffraction and X-ray analysis Isothermal sections diagrams of Y2S3-NiS-GeS2, Er2S3-CoS-Ge (Si) S2, Pr2S3-Mn (Co) S-GeS2, Y2S3-ZnS-Ga2S3, Er2S3-NiS-Ge (Si) S2, Er2S3-PbS-SiS2, Pr2S3-PbS-SnS2, Sm2S3- FeS-GeS2, Ho2S3-CoS-SiS2, Er (Pr) 2S3-ZnS-Ga2S3, La (Pr) 2S3-Y2S3-PbS, La2S3-Y2S3-SnS2, La2S3-NiS-Ge (Sn) S2, Ho2S3-CoS- GeS2, Gd (Ho) 2Se3 - PbSe - GeSe2 for 770 K. Studied crystal structures of four series of new quaternary compounds: R3Fe0,5GeS7 (R = Y, La, Ce, Pr, Sm, Gd, Tb, Dy, Ho, Er and Tm), R3Mn0,5GeS7 (R = Y, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho and Er), R3Ni0,5GeS7 (R = Y, Ce, Sm, Gd, Tb, Dy, Ho, Er and Tm), R3Co0,5GeS7 (R = Y, La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er and Tm) and a new compound Pr2Pb3SnS12 to replenish international databases: Crystmet, ICSD, Fachinformationzentrum Karlsruhe. Compound Pr2Pb3SnS12 crystallizes in the structural type La2Pb3SnS12. Other tested compounds crystallize in structural type La3Mn0,5SiS7, space group P63, Pearson symbol hP23. Studied magnetic properties of four series of compounds R3Fe0,5GeS7 (R = Y, La, Ce, Pr, Sm, Gd, Tb, Dy, Ho, Er and Tm), R3Mn0,5GeS7 (R = Y, Ce, Pr, Nd, Sm , Gd, Tb, Dy, Ho and Er), R3Ni0,5GeS7 (R = Y, Ce, Sm, Gd, Tb, Dy, Ho, Er and Tm), R3Co0,5GeS7 (R = Y, La, Ce, Pr , Nd, Sm, Gd, Tb, Dy, Ho, Er and Tm) to 1.72 K. In the studied compounds is dominated by antiferromagnetic correlations. Most of them, exchange interactions lead to magnetic ordering at low temperatures. The dependence of the polarization current density potential for compounds R3Mn0,5GeS7 (R = Y, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho and Er). Optical properties of glassy alloys section Ag0,05Ga0,05Ge0,95S2 - Er2S3 for use in telecommunication devices as active or passive elements. PbJ2 crystals grown by different methods and investigated the possibility of their use in transistors. Manufactured Rostov new plant for growing single crystals from the melt PbI2 containing 8 separate heaters, which held separate regulation VRT-3M. Product Description popup.authors Вербицька Наталія Олександрівна Вознюк Андрій Васильович Гулай Любомир Дмитрович Гулай Ольга Іванівна Домбровська Марина Олександрівна Марчук Олег Васильович Пашинська Юлія Олександрівна Поліщук Наталія Миколаївна Поліщук Олександр Вячеславович Пупенко Тетяна Василівна Савчук Петро Петрович Садовська Юлія Володимирівна Фурс Тетяна Василівна Шевчук Микола Вікторович Шевчук Юрій Віталійович Шемет Василина Ярославівна popup.nrat_date 2020-04-02 Close