1. Atomically Layered and Ordered Rare-Earth i-MAX Phases: A New Class of Magnetic Quaternary Compounds
- Author
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Tao, Quanzheng, Lu, Jun, Dahlqvist, Martin, Mockute, Aurelija, Calder, Stuart, Petruhins, Andrejs, Meshkian, Rahele, Rivin, Oleg, Potashnikov, Daniel, Caspi, El’ad N., Shaked, Hagai, Hoser, Andreas, Opagiste, Christine, Galera, Rose-Marie, Salikhov, Ruslan, Wiedwald, Ulf, Ritter, Clemens, Wildes, Andrew R., Johansson, Börje, Hultman, Lars, Farle, Michael, Barsoum, Michel W., and Rosen, Johanna
- Abstract
In 2017, we discovered quaternary i-MAX phases—atomically layered solids, where M is an early transition metal, A is an A group element, and X is C—with a (M12/3M21/3)2AC chemistry, where the M1and M2atoms are in-plane ordered. Herein, we report the discovery of a class of magnetic i-MAX phases in which bilayers of a quasi-2D magnetic frustrated triangular lattice overlay a Mo honeycomb arrangement and an Al Kagomé lattice. The chemistry of this family is (Mo2/3RE1/3)2AlC, and the rare-earth, RE, elements are Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, and Lu. The magnetic properties were characterized and found to display a plethora of ground states, resulting from an interplay of competing magnetic interactions in the presence of magnetocrystalline anisotropy.
- Published
- 2019
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