Perspective: Molecular beam epitaxy of antiperovskite oxides

Abstract

Antiperovskites, or inverse perovskites, have recently emerged as a material class with a plethora of promising electronic properties. This perspective describes the molecular beam epitaxy (MBE) growth of oxide antiperovskites Sr${}_3$PbO and Sr${}_3$SnO. We show that MBE offers great potential not only in growing antiperovskites with high structural quality, but also in providing a means to seamlessly connect with advanced characterization tools, including x-ray photoelectron spectroscopy (XPS), low-energy electron diffraction (LEED), reflection high-energy electron diffraction (RHEED), and scanning tunneling microscopy (STM), to facilitate the analyses of their intrinsic properties. The initial results point toward the feasibility of atomically controlled antiperovskite growth, which could open doors to study topological and correlated electronic states in an electronic environment quite distinct from what is available in conventional complex oxides.

References in corpus (12)

• Discovery of two-dimensional anisotropic superconductivity at KTaO${}_3$ (111) interfaces
• Two-dimensional superconductivity at the surfaces of KTaO3 gated with ionic liquid
• Topological Crystalline Insulators and Dirac Octets in Anti-perovskites
• Low-Energy Effective Hamiltonian and the Surface States of Ca_3PbO
• Surface Reconstructions in Molecular Beam Epitaxy of SrTiO3
• Higher-order topological insulators in antiperovskites
• Giant orbital diamagnetism of three-dimensional Dirac electrons in Sr${}_3$PbO antiperovskite
• Planar Hall effect with sixfold oscillations in a Dirac antiperovskite
• Negative ionic states of tin in the oxide superconductor Sr${}_{3-x}$SnO revealed by Mössbauer spectroscopy
• Evolution of Band Topology by Competing Band Overlap and Spin-Orbit Coupling: Twin Dirac Cones in Ba${}_3$SnO as a Prototype
• Computational search for Dirac and Weyl nodes in $f$-electon antiperovskites
• Realization of Epitaxial Thin Films of the Topological Crystalline Insulator Sr${}_3$SnO