Molecular beam deposition of a new layered pnictide with distorted Sb square nets

Abstract

While the family of layered pnictides $AB{X}_2$ ($A$ : rare or alkaline earth metals, $B$ : transition metals, $X$ : Sb/Bi) can host Dirac dispersions based on Sb/Bi square nets, nearly half of them has not been synthesized yet for possible combinations of the $A$ and $B$ cations. Here we report the fabrication of EuCdSb${}_2$ with the largest $B$-site ionic radius, which is stabilized for the first time in thin film form by molecular beam deposition. EuCdSb${}_2$ crystallizes in an orthorhombic $Pnma$ structure and exhibits antiferromagnetic ordering of the Eu magnetic moments at $T_{\mathrm{N}}=15$K. Our successful growth will be an important step for further exploring novel Dirac materials using film techniques.

arXiv comment12 pages, 4 figures

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Cited by in corpus (2)

• Maximizing intrinsic anomalous Hall effect by controlling the Fermi level in simple Weyl semimetal films
• Twisted nodal wires and three-dimensional quantum spin Hall effect in distorted square-net compounds