Study of electrokinetic and magnetic properties of ZrNi1-xRhxSn semiconductive solid solution

  • L.P. Romaka Ivan Franko National University of Lviv
  • Yu.V. Stadnyk Ivan Franko National University of Lviv
  • V.A. Romaka Ya. Pidstryhach Institute for Applied Problems of Mechanics and Mathematics National Academy of Sciences of Ukraine; National University “Lvivska Politechnika”
  • A.M. Horyn Ivan Franko National University of Lviv
  • V.Ya. Krayovskyy Lviv Polytechnic National University
Keywords: electric conductivity, thermopower coefficient, Fermi level

Abstract

The features of electrokinetic, energy state and magnetic characteristics of ZrNi1-xRhxSn semiconductive solid solution were investigated in the ranges: T = 80-400 K, x = 0-0.10. It was shown that substitution of Ni atoms (3d84s2) by Rh atoms (4d85s1) in the structure of ZrNiSn compound generated the structural defects with acceptor nature, and holes became the main charge carriers in the ZrNi1-xRhxSn at low temperature. Based on analysis of the motion rate of the Fermi level ΔεFх in ZrNi1-xRhxSn to the valence band and change of sign of thermopower coefficient from positive to negative it was suggested that the structural defects of acceptor and donor natures were generated simultaneously (donor-acceptor pairs), and deep donor band ɛD2 was formed.

References

[1] V. A. Romaka, V. V. Romaka, and Yu. V. Stadnyk, Intermetallic Semiconductors: Properties and Applications (Lviv, Lvivska Politekhnika, 2011) [in Ukrain.].

[2] L. I. Anatychuk, Thermoelements and Thermoelectric Devices (Kiev, Nauk. Dumka, 1979) [in Ukrain.].

[3] V. A. Romaka, D. Fruchart, V. V. Romaka, E. K. Hlil, Yu. V. Stadnyk, Yu. K. Gorelenko, L. G. Akselrud, Semiconductors 43(1), 7 (2009).

[4] V. A. Romaka, P. Rogl, Yu. Stadnyk, V. V. Romaka, E. K. Hlil, V. Ya Krayovskyy, A. M. Horyn, Semiconductors 47(9), 1145 (2013).

[5] B. I. Shklovskii and A. L. Efros, Electronic Properties of Doped Semiconductors (Springer, NY, 1984).

[6] V. V. Romaka, L. P. Romaka, V. Ya. Krayovskyy, Yu. V. Stadnyk, Stannides of rare earth and transition metals (Lviv, Lvivska Politekhnika, 2015) [in Ukrain.].

[7] N. F. Mott, E. A. Davis, Electron processes in non-crystalline materials (Clarendon Press, Oxford, 1979).

[8] L. P. Romaka, Yu. V. Stadnyk, V. V. Romaka, V. Ya. Krayovskyy, P.-F. Rogl, A. M. Horyn, Physics and Chemistry of Solid State 18(2), 187 (2017).
Published
2018-03-15
How to Cite
Romaka, L., Stadnyk, Y., Romaka, V., Horyn, A., & Krayovskyy, V. (2018). Study of electrokinetic and magnetic properties of ZrNi1-xRhxSn semiconductive solid solution. Physics and Chemistry of Solid State, 19(1), 21-28. https://doi.org/10.15330/pcss.19.1.21-28
Section
Articles

Most read articles by the same author(s)