Influence of doping elements (Y and Fe) on crystal structure and electrical resistivity of the RNi2 (R = Gd, Er) compounds

Sol–gel preparation and characterization of uniform core-shell structured LaInO3:Sm3+/Tb3+@SiO2 phosphors

“…During the past decades, doping has been extensively applied for the fabrication of hybrid materials with desirable properties and functions in modern materials science and engineering [1][2][3][4][5][6][7][8][9][10]. For rare earth based luminescent materials, doping is of fundamental importance in achieving and modifying the optical properties due to their abundant emission colors based on their unique 4f-4f or 4f-5d transitions [11][12][13][14][15].…”

Phase equilibria in Er–Zr–Ni system at 800 С in ErNi–Zr–Ni region

“…Аналогічно до фази YxZr1-xNi2 вивчена тернарна сполука є у рівновазі з бінарною Er0,98Ni2. Цей факт засвідчує існування морфотропного ряду кубічних структур MgCu2 → TmNi2 -надструктура до структурного типу MgCu2 [23], виявленого раніше у працях [6,11,38,39].…”

“…Дослідження властивостей сплаву Er0,12Zr0,88Ni2 [11] з області гомогенності сполуки ErxZr1-xNi2 (0,12 ≤ х ≤ 0,24) показали, що цей інтерметалід виявляє магнітні та електричні властивості, подібні до бінарної сполуки Er0,98Ni2 [40,41] та досліджених раніше фаз на основі Er0,98Ni2, легованих третім компонентом Y чи Fe [42]. Усі заміщені інтерметаліди аналогічно до Er0,98Ni2 мають металічний тип провідності.…”

Influence of doping elements (Cu and Fe) on the crystal structure and electrical resistivity of YNi3 and Y0.95Ni2

“…During the past years we have studied a number of binary RM 2 and RM 3 compounds doped with a third component (R' or M') with respect to the influence of the doping element on the crystal structure, electrical and magnetic properties and hydrogenation ability of these alloys. The results have been presented in [4][5][6][7][8][9][10][11][12][13][14][15].…”

“…Gratz et al [19] later attributed these high-temperature transport anomalies to structural phase transitions from the superstructure type (space group F-43m) at lower temperatures to the MgCu 2 structure type (space group Fd-3m), stable at higher temperatures. Our previous works [5][6][7][8][9][11][12][13]15] were focused on the influence of substitution of Fe for Ni, or non-magnetic Y for the magnetic rare earths Er and Gd, on the crystal structure, electrical and magnetic properties, hydrogenation ability and kinetics of the hydrogenation-dehydrogenation process of R 0.85 Y 0.15 Ni 2 and RNi 1.85 Fe 0.15 (R = Gd, Er) alloys based on the binary RNi 2 (R = Gd, Er) compounds. The results of the crystal structure investigations showed that the parent compound RNi 2 and R/Y substituted R 0.85 Y 0.15 Ni 2 (R = Gd and Er) alloys belong to the TmNi 2 superstructure type, but the Fecontaining alloys GdNi 1.85 Fe 0.15 and ErNi 1.85 Fe 0.15 crystallize in the MgCu 2 -type structure.…”