[en] Based on comprehensive calculations of the transition energy levels for extensive dopant substitutional (H, Li, Na, K, Ag, B, Al, Ga, In, N, P, As, Sb, Bi, F, Cl, Br, I), we illustrate and check the validity of the first-principle calculations based on GGA and GGA+U correction method. The results indicate that there still exist large limits for quantitative correct results of first-principle calculations. Nevertheless, some qualitative useful information can be obtained by such calculations. Based on our calculation results, Li_Zn, Na_Zn, K_Zn, N_Zn and Ag_Zn have the shallowest transition energy level (0/1-) for p-type doping, from shallow to deep.

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[en] The influence of the addition of third elements into permalloy films on anisotropic magnetoresistance (AMR) has been investigated for a large number of third elements. AMR decreases rapidly for the addition of Sc, Ti, V, Cr, Ge, Zr, Nb, Mo, Ru, Ta and W. On the other hand, the decreases in AMR are relatively slow for the addition of Co, Cu, Pd, Ag, Pt and Au. We have found the tendency that the influence of the elements which are situated near Ni in the periodic table is smaller than that of the elements which are situated far from Ni

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[en] Using the method of passive-active random balance, the authors have established the effect of alloying elements on different mechanical and technological properties of carburized steels. Molybdenum and silicon exert the strongest effect. The directions of changes in steel composition for obtaining definite properties are indicated

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[en] α-HgI crystals from different laboratories grown at varied conditions show typical concentration spectra for both elemental impurities and hydrocarbon fragments. The average concentration of the various impurities may easily attain a few hundred ppm. This fact is attributed to the layer structure of α-HgI. (orig.)

[en] The properties of steels alloyed by one element are investigated. In testing resistance to burnability samples were heated in a lead bath up to the temperature of 600 deg C and cooled in water from 50 to 80 deg C. The experiments show that chromium, tungsten and molybdenum added to steel increase resistance to burnability. Aluminium, silicon and nickel have practically no effect on it, but copper and manganese decrease it. All alloying elements and especially tungsten, molybdenum, chromium, aluminium increase wear resistance of medium-carbon steels. It is shown that the effect of aluminizing elements on wear resistance depends on experimental conditions and the form of wear

[en] The effects of Ru-site metal dopants on the low-temperature magnetization of CaRuO₃ are reported. Dopants of two types are tested: those with closed d shells in their expected oxidation state (Al³⁺, Zn²⁺, Ti⁴⁺, V⁵⁺ and Pt²⁺), and those with unpaired d electrons (Mn⁴⁺, Fe³⁺, Co²⁺, Ni²⁺ and Cu²⁺) in their expected oxidation state. The results are consistent with the recent proposal that CaRuO₃ is not a classical antiferromagnet, but rather is poised at a critical point between ferromagnetic and paramagnetic ground states. Ti, Fe, Mn and Ni doping result in ferromagnetic behaviour. (author)