1. Antiferromagnetic Order in the Rare Earth Halide Perovskites CsEuBr$_3$ and CsEuCl$_3$
- Author
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Straus, Daniel B., Klimczuk, Tomasz, Xu, Xianghan, and Cava, Robert J.
- Subjects
Condensed Matter - Materials Science ,Physics - Applied Physics ,Physics - Chemical Physics - Abstract
Bulk CsEuBr$_3$ and CsEuCl$_3$ are experimentally shown to be magnetic semiconductors that order antiferromagnetically at Neel temperatures of 2.0 K and 1.0 K respectively. Given that nanoparticles and thin films of CsEuCl$_3$ have been reported to order ferromagnetically at a similar temperature, our observation of antiferromagnetic ordering in CsEuBr$_3$ and CsEuCl$_3$ expands the possible applications of halide perovskites to now include spintronic devices where both ferromagnetic and antiferromagnetic devices can be fabricated from a single material. The conclusion that CsEuCl$_3$ can be used as a switchable magnetic material is also supported by our density-functional theory calculations., Comment: 21 pages, 3 figures, 6 additional figures
- Published
- 2022
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