Strain Induced Slater Transition in Polar Metal LiOsO${}_3$

Abstract

LiOsO3 is the first experimentally confirmed polar metal. Previous works suggested that the ground state of LiOsO${}_3$ is just close to the critical point of metal-insulator transition. In this work the electronic state of LiOsO${}_3$ is tuned by epitaxial biaxial strain, which undergoes the Slater-type metal-insulator transition under tensile strain, i.e., the G-type antiferromagnetism emerges. The underlying mechanism of bandwidth tuning can be extended to its sister compound NaOsO${}_3$, which shows an opposite transition from a antiferromagnetic insulator to a nonmagnetic metal under hydrostatic pressure. Our work suggests a feasible route for the manipulation of magnetism and conductivity of polar metal LiOsO${}_3$.

arXiv comment10 pages, 4 figures

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Cited by in corpus (1)

• Polar Metals Taxonomy for Materials Classification and Discovery