Lutetium Trigermanide LuGe: High-Pressure Synthesis, Superconductivity, and Chemical Bonding.

Author(s) Hübner, J.M.; Bobnar, M.; Akselrud, L.; Prots, Y.; Grin, Y.; Schwarz, U.
Journal Inorg Chem
Date Published 2018 Aug 20
Abstract

LuGe was obtained under high-pressure and high-temperature conditions at pressures between 8(1) and 14(2) GPa and at temperatures in the range from 1100(150) to 1500(150) K. The high-pressure phase is isotypic to DyGe and decomposes at ambient pressure and T = 690 K mainly into ( cF8)Ge and LuGe. Chemical bonding analysis of LuGe reveals two-center electron-deficient Ge-Ge bonds, multicenter polar Lu-Ge interactions, and lone pairs on germanium. Magnetic susceptibility, specific heat, and electrical conductivity measurements indicate transition into a superconducting state below T = 3.3(3) K.

DOI 10.1021/acs.inorgchem.8b01510
ISSN 1520-510X
Citation Hübner J-, Bobnar M, Akselrud L, Prots, ii Y, Grin Y, Schwarz U. Lutetium Trigermanide LuGe: High-Pressure Synthesis, Superconductivity, and Chemical Bonding. Inorg Chem. 2018;57(16):10295-10302.

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