Layer-dependent electronic and magnetic properties of SrMnO3/LaAlO3 superlattices
Source abstract
Abstract
In this paper, we investigated the structural, electronic, and magnetic properties of SrMnO 3/LaAlO 3 (SMO/LAO) (001) heterostructures using density functional theory (DFT) with the Hubbard U correction, employing the Perdew-Burke-Ernzerhof (PBE) generalized gradient approximation within the Vienna Ab Initio Simulation Package (VASP). Three distinct superlattices—SMO 1.5/LAO 1.5, SMO 1.5/LAO 2, and SMO 2.5/LAO 1—were analyzed by varying the layer thicknesses to tailor their properties. The SMO 1.5/LAO 1.5 and SMO 2.5/LAO 1 superlattices exhibit antiferromagnetic (AFM) ground states, while the SMO 1.5/LAO 2 superlattice shows a ferromagnetic (FM) ground state. Electronic structure analysis reveals that SMO 1.5/LAO 1.5 and SMO 1.5/LAO 2 are metallic, whereas SMO 2.5/LAO 1 exhibits half-metallic behavior. By strategically controlling the layers in SMO/LAO heterostructures, it is promising to engineer electronic and magnetic properties that are important for developing advanced magnetic and nano-electronic devices.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Magnetic and transport properties of perovskites and related materials · Electronic and Structural Properties of Oxides · Advanced Condensed Matter Physics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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