Structures and Magnetic Ordering in Layered Cr Oxide Arsenides Sr₂CrO₂Cr₂OAs₂ and Sr₂CrO₃CrAs.

ABSTRACT: Two novel chromium oxide arsenide materials have been synthesized, Sr₂CrO₂Cr₂OAs₂ (i.e., Sr₂Cr₃As₂O₃) and Sr₂CrO₃CrAs (i.e., Sr₂Cr₂AsO₃), both of which contain chromium ions in two distinct layers. Sr₂CrO₂Cr₂OAs₂ was targeted following electron microscopy measurements on a related phase. It crystallizes in the space group P4/mmm and accommodates distorted CrO₄As₂ octahedra containing Cr²⁺ and distorted CrO₂As₄ octahedra containing Cr³⁺. In contrast, Sr₂CrO₃CrAs incorporates Cr³⁺ in CrO₅

SUBMITTER: Sheath BC 

PROVIDER: S-EPMC9364410 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature