La 7/8 Sr 1/8 MnO3: long period orbital order with hole stripes
Michael Korotin, Takeo Fujiwara, and Vladimir Anisimov
TL;DR
This paper investigates the electronic structure of La 7/8 Sr 1/8 MnO 3, revealing a unique long-period orbital order with hole stripes stabilized by p-d hybridization, using LSDA+U calculations.
Contribution
It introduces a detailed analysis of charge and orbital order in La 7/8 Sr 1/8 MnO 3 with a specific hole stripe pattern using advanced computational methods.
Findings
Holes form 3-line stripes in specific planes
Orbital order stabilizes the insulating state
Strong p-d hybridization underpins stripe stability
Abstract
The electronic structure of La 7/8 Sr 1/8 MnO 3 was studied by using the rotation-invariant LSDA (Local Spin Density Approximation)+U formalism. We found the specific kind of charge and orbital order for ferromagnetic insulating solution in 2a*2b*4c supercell, where a, b, and c denote cubic perovskite axes. The holes are distributed over 3-line stripes in every second ac plane along a axis. The stabilization mechanism of the hole stripe is attributed to the strong p-d hybridization.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsMagnetic and transport properties of perovskites and related materials · Inorganic Chemistry and Materials · Rare-earth and actinide compounds