Journal
INORGANIC CHEMISTRY
Volume 57, Issue 11, Pages 6237-6244Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.8b00021
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Funding
- KU Leuven [PDM/16/140]
- Hercules Foundation [ZW09-09, AKUL/1319]
- Agency for Innovation by Science and Technology, Flanders, Belgium [131081]
- European Atomic Energy Community's Seventh Framework Programme FP7 [604862]
- Swedish Foundation for Strategic Research through the Synergy Grant FUNCASE [KAW 2015.0043]
- Knut and Alice Wallenberg (KAW) Foundation [KAW 2015.0043]
- Swedish Research council [642-2013-8020]
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Guided by predictive theory, a new compound with chemical composition (Cr2/3Zr1/3)(2)AlC was synthesized by hot pressing of Cr, ZrH2, Al, and C mixtures at 1300 degrees C. The crystal structure is monoclinic of space group C2/c and displays in-plane chemical order in the metal layers, a so-called i-MAX phase. Quantitative chemical composition analyses confirmed that the primary phase had a (Cr2/3Zr1/3)(2)AlC stoichiometry, with secondary Cr2AlC, AlZrC2, and ZrC phases and a small amount of Al-Cr intermetallics. A theoretical evaluation of the (Cr2/3Zr1/3)(2)AlC magnetic structure was performed, indicating an antiferromagnetic ground state. Also (Cr2/3Zr1/3)(2)AlC, of the same structure, was predicted to be stable.
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