Antiferromagnetic Order in the Rare Earth Halide Perovskites CsEuBr${}_3$ and CsEuCl${}_3$

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.

21 pages, 3 figures, 6 additional figures

References in corpus (8)

• Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
• Advanced capabilities for materials modelling with Quantum ESPRESSO
• All-electric all-semiconductor spin field effect transistors
• Kinetically Stable Single Crystals of Perovskite-Phase CsPbI${}_3$
• The Chemistry of Quantum Spin Liquids
• Hexagonal Perovskites as Quantum Materials
• Photophysics of Two-Dimensional Semiconducting Organic-Inorganic Metal-Halide Perovskites
• Half-magnetization plateau and the origin of threefold symmetry breaking in an electrically-switchable triangular antiferromagnet

Cited by in corpus (1)

• Chirality Transfer to the Magnetic Sublattice in the Hybrid Perovskite (R)-/(S)-3-Fluoropyrrolidinium Copper(II) Chloride