Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 27th March 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.

Issue 2, 2017
Previous Article Next Article

EuSn2As2: an exfoliatable magnetic layered Zintl–Klemm phase

Author affiliations


Despite the immense interest in magnetic, topological, and magnetoelectronic phenomena in isolated layers of 2D materials and their vertically stacked heterostructures, there remains a dearth of 2D magnetic materials that can be readily exfoliated into single layers. Here, we synthesize EuSn2As2, the first exfoliatable, layered magnetic Zintl–Klemm phase that features van der Waals bonding between neighboring layers. In these crystals, Eu2+ 4f7 spins magnetically order at 24 K and are coupled ferromagnetically within each layer and antiferromagnetically, with some potential canting, across adjacent layers. Magnetic ground state DFT calculations and temperature-dependent transport measurements on single crystals together establish that EuSn2As2 is semimetallic. Finally, we show that this material can be thinned down to a few layers having steps corresponding to SnAsEuAsSn layers via micromechanical exfoliation. This work opens up further explorations into the design, synthesis, and layer-dependent magnetic properties of exfoliatable, lanthanide-based magnetic van der Waals Zintl phases.

Graphical abstract: EuSn2As2: an exfoliatable magnetic layered Zintl–Klemm phase

Back to tab navigation

Supplementary files

Publication details

The article was received on 03 Nov 2016, accepted on 23 Dec 2016 and first published on 26 Dec 2016

Article type: Research Article
DOI: 10.1039/C6QI00476H
Citation: Inorg. Chem. Front., 2017,4, 378-386

  •   Request permissions

    EuSn2As2: an exfoliatable magnetic layered Zintl–Klemm phase

    M. Q. Arguilla, N. D. Cultrara, Z. J. Baum, S. Jiang, R. D. Ross and J. E. Goldberger, Inorg. Chem. Front., 2017, 4, 378
    DOI: 10.1039/C6QI00476H

Search articles by author