Atomically Layered and Ordered Rare-Earth i‑MAX Phases: A New Class of Magnetic Quaternary
Compounds

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.; Rosen, Johanna

doi:10.1021/acs.chemmater.8b05298.s001

cm8b05298_si_001.pdf (2.26 MB)

Atomically Layered and Ordered Rare-Earth i‑MAX Phases: A New Class of Magnetic Quaternary Compounds

journal contribution

posted on 2019-03-06, 00:00 authored by Quanzheng Tao, Jun Lu, Martin Dahlqvist, Aurelija Mockute, Stuart Calder, Andrejs Petruhins, Rahele Meshkian, Oleg Rivin, Daniel Potashnikov, El’ad N. Caspi, Hagai Shaked, Andreas Hoser, Christine Opagiste, Rose-Marie Galera, Ruslan Salikhov, Ulf Wiedwald, Clemens Ritter, Andrew R. Wildes, Börje Johansson, Lars Hultman, Michael Farle, Michel W. Barsoum, Johanna Rosen

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 (M¹_2/3M²_1/3)₂AC chemistry, where the M¹ and M² atoms 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 (Mo_2/3RE_1/3)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.