Search Results - "Romaka, V."

Thermoelectric high ZT half-Heusler alloys Ti1−x−yZrxHfyNiSn (0 ≤ x ≤ 1; 0 ≤ y ≤ 1) by Gürth, M., Rogl, G., Romaka, V.V., Grytsiv, A., Bauer, E., Rogl, P.

“…In order to achieve homogeneous products of n-type Ti1−xZrxNiSn, Ti1−xHfxNiSn, and corresponding Sn/Sb substituted alloys, the synthesis conditions were tuned…”
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Phase relations, structure, properties and DFT study of compounds in the Sc-rich part of the systems Sc-{Mn,Fe,Co,Ni}-Ga by Romaka, V.V., Rogl, G., Binder, G., Michor, H., Bursik, J., Grytsiv, A., Giester, G., Rogl, P.

“…Phase relations have been derived for the Sc-rich parts of the ternary systems Sc-T-Ga at 850 °C (T = Mn,Fe,Co,Ni) as well as for the corresponding regions of…”
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Peculiarities of thermoelectric half-Heusler phase formation in Zr–Co–Sb ternary system by Romaka, V.V., Romaka, L., Rogl, P., Stadnyk, Yu, Melnychenko, N., Korzh, R., Duriagina, Z., Horyn, A.

“…•Phase relations for the Zr–Co–Sb system at 500°C.•Homogeneity region for half-Heusler phase.•The distribution of DOS for Zr1+xCo1−xSb predicts transition from…”
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Thermoelectric Half-Heusler compounds TaFeSb and Ta1-xTixFeSb (0 ≤ x ≤ 0.11): Formation and physical properties by Grytsiv, A., Romaka, V.V., Watson, N., Rogl, G., Michor, H., Hinterleitner, B., Puchegger, S., Bauer, E., Rogl, P.

“…We report on the formation, physical-chemical, as well as elastic and mechanical properties of the novel Half-Heusler (HH) compound TaFeSb that forms during a…”
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Phase equilibria, formation, crystal and electronic structure of ternary compounds in Ti–Ni–Sn and Ti–Ni–Sb ternary systems by Romaka, V.V., Rogl, P., Romaka, L., Stadnyk, Yu, Melnychenko, N., Grytsiv, A., Falmbigl, M., Skryabina, N.

“…The phase equilibria of the Ti–Ni–Sn and Ti–Ni–Sb ternary systems have been studied in the whole concentration range by means of X-ray and EPM analyses at…”
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The V-Cu-Sb ternary system at 773 K: Crystal, band structure, and physical properties by KONYK, M, ROMAKA, L, DEMCHENKO, P, ROMAKA, V. V, STADNYK, Yu, HORYN, A

“…The component interaction in the V-Cu-Sb ternary system was studied at 773 K by X-ray and EPM analyses in the whole concentration range. One new ternary…”
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Experimental and theoretical investigation of the Y–Ni–Sb and Tm–Ni–Sb systems by Romaka, V.V., Romaka, L., Horyn, A., Stadnyk, Yu

“…Interaction of Yttrium and Thulium with Nickel and Antimony was studied at 870 K in the whole concentration range based on XRD and EPM analyses. Four ternary…”
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Influence of Oxygen Concentration and Distribution on Microstructure and Superconducting Characteristics of MgB2-Based Materials and Melt-Textured YBCO by Prikhna, T. A., Kasatkin, A. L., Eisterer, M., Moshchil, V. E., Shapovalov, A. P., Romaka, V. V., Rabier, J., Jouline, A., Chaud, X., Rindfleisch, M., Tomsic, M., Ponomaryov, S. S., Shaternik, A. V., Sverdun, V. B.

“…The oxygen concentration and distribution in the microstructure of MgB 2 - and YBa 2 Cu 3 O 7-δ -based materials affect the formation of nanostructural defects…”
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TSFZ Growth of Eu-Substituted Large-Size LSCO Crystals by Voloshyna, Olesia, Romaka, Vitaliy V., Karmakar, Koushik, Seiro, Silvia, Maljuk, Andrey, Büchner, Bernd

“…The travelling solvent floating zone (TSFZ) growth of Eu-substituted LSCO (La1.81−xEuxSr0.19CuO4, with nominal x = 0 ÷ 0.4) single crystals was systematically…”
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Phase equilibria in Ho-Fe-Sn ternary system at 670 K by Romaka, L., Stadnyk, Yu, Romaka, V. V., Horpenyuk, A.

“…Interaction between the components in the Ho-Fe-Sn ternary system was studied using X-ray diffractometry, metallography and electron microprobe analysis…”
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Peculiarities of structural disorder in Zr- and Hf-containing Heusler and half-Heusler stannides by Romaka, V.V., Rogl, P., Romaka, L., Stadnyk, Yu, Grytsiv, A., Lakh, O., Krayovskii, V.

“…The structural phase transition in half-Heusler – Heusler stannides ZrNiSn–ZrNi2Sn and HfNiSn–HfNi2Sn was studied using XRD and EPM analyses, electrical and…”
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The influence of heavy doping of TiCoSb intermetallic semiconductor with Cr atoms on structural, kinetic and energetic properties by Stadnyk, Yu, Romaka, L., Romaka, V.A., Horyn, A., Romaka, V.V., Lukovskyy, T., Poplavskyi, O.

“…The structural, electrokinetic, and energetic properties of the TiСо1-xCrxSb semiconductor obtained by doping TiCoSb with Cr atoms introduced into the…”
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Peculiarity of component interaction in Zr–Mn–{Sn, Sb} ternary systems by Romaka, L., Tkachuk, A., Stadnyk, Yu, Romaka, V.V., Horyn, A., Korzh, R.

“…•Zr–Mn–Sn phase diagram was constructed at 773K.•One ternary compound ZrMn6Sn6 is formed.•Two ternary compounds Zr5Mn0.5Sb2.5 and Zr5MnSb3 exist in Zr–Mn–Sb…”
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Contribution to the investigation of ternary Lu–Ni–Sn system by Romaka, V.V., Romaka, L.

“…► Isothermal sections of Lu–Ni–Sn system were constructed at two temperatures. ► Two new ternary intermetallics were found and their crystal structure was…”
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Mechanism of the Generation of Donor–Acceptor Pairs in Heavily Doped n-ZrNiSn with the Ga Acceptor Impurity by Romaka, V. A., Rogl, P. -F., Frushart, D., Kaczorowski, D.

“…The nature of the mechanism of the simultaneous generation of donor–acceptor pairs under heavy doping of n -ZrNiSn intermetallic semiconductor with the Ga…”
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Modeling of the properties of the semiconductor solid solution Lu1-xVxNiSb in the presence of magnetic ordering by Romaka, V.V., Romaka, V.A., Stadnyk, Yu, Romaka, L., Horyn, A., Pashkevych, V., Haraniuk, P.

“…Modeling of the thermodynamic, structural, energetic and magnetic properties of the semiconductor solid solution Lu1-xVxNiSb was carried out under the…”
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Pd5Sn7-A novel binary stannide in Pd-Sn system by ROMAKA, V. V, TKACHUK, A, ROMAKA, V. A

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Features of the band structure and conduction mechanisms of n-HfNiSn heavily doped with Y by Romaka, V. A., Rogl, P., Romaka, V. V., Kaczorowski, D., Krayovskyy, V. Ya, Stadnyk, Yu. V., Horyn, A. M.

“…The crystalline and electronic structures, energy, kinetic, and magnetic characteristics of n -HfNiSn semiconductor heavily doped with Y acceptor impurity are…”
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The system Ba–Zn–Sn at 500 °C: Phase equilibria, crystal and electronic structure of ternary phases by Romaka, V.V., Falmbigl, M., Grytsiv, A., Rogl, P.

“…[Display omitted] •Phase relations for the Ba-poor part of the Ba–Zn–Sn system established at 500°C.•New ternary compound BaZnSn2 crystallizes in CeNiSi2…”
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Investigation of Ti1-xMoxCoSb Semiconducting Solid Solution by Stadnyk, Yu, Romaka, V., Нoryn, A., Romaka, L., Krayovskyy, V., Romaniv, I., Rokomanuk, M.

“…The effect of doping of the TiCoSb compound (MgAgAs structure type) by Mo atoms on the features of the structural characteristics and behavior of the…”
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