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H. Michor, V. Levytskyy, M. Roman, O. Sologub, B. Stöger, S. Steiner, V. Babizhetskyy, B.Ya. Kotur:
"CRYSTAL GROWTH AND STUDIES OF CDW PHYSICS IN THE QUASI-1D METAL LuNiC2";
Keynote Lecture: XVII Scientific Conference "Lviv Chemical Readings - 2019", Lemberg, Ukraine (invited); 2019-06-02 - 2019-06-05.

Ternary carbides RNiC₂ (R = La, .. Lu, Y) and RCoC₂ (R = Nd, .. Lu) crystallize in the non-centrosymmetric orthorhombic CeNiC₂-type structure, space group Amm2. These compounds attracted attention already for two decades, because of various interesting properties such as exotic superconductivity in LaNiC₂, observation of charge density wave (CDW) formation related to quasi-one-dimensional electronic features and Fermi surface nesting in RNiC₂ with R = Pr, ..., Lu, Y, and, finally, a complex interplay of CDW ordering with rare earth magnetism in RNiC₂ (see e.g. Ref. [1] for a recent review).
In the present talk, we report on crystal growth, crystallographic characteristics, magnetic and electronic properties studied by magnetization, specific heat and electrical resistivity as well as magneto-resistance measurements with focus on LuNiC₂ [2]. Our experimental studies on LuNiC₂ are supplemented by DFT electronic structure studies aiming to reveal Fermi surface features related to CDW ordering as well as interrelations between features and anisotropy of electronic transport properties and the Fermi surface topology.
[1] V. Babizhetskyy, B. Kotur, V. Levytskyy, H. Michor, Chapter 298: Alloy systems and compounds containing rare earth metals and carbon, in: J.-C.G. Bünzli, V.K. Pecharsky (Eds.), Handbook on the Physics and Chemistry of Rare Earths, Vol. 52, North-Holland, Amsterdam, 2017, pp. 1-263.
[2] S. Steiner, H. Michor, O. Sologub, B. Hinterleitner, F. Höfenstock, M. Waas, E. Bauer, B. Stöger, V. Babizhetskyy, V. Levytskyy, B. Kotur, Single-crystal study of the charge density wave metal LuNiC₂, Phys. Rev. B 97, 205115 (2018).

Charge density wave, DFT