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arXiv · 2503.17001

Designing Non-Relativistic Spin Splitting in Oxide Perovskites

Subhadeep Bandyopadhyay·Silvia Picozzi·Sayantika Bhowal
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Abstract

We investigate the role of atomic distortions in non-relativistic spin splitting in perovskite oxides with Pbnm symmetry. Using LaMnO3 as a representative material, we analyze its non-relativistic spin splitting through a combined phonon and multipolar analysis. Our study provides key insights into how structural distortions and magnetic ordering drive ferroically ordered magnetic multipoles, which, in turn, give rise to non-relativistic spin splitting. Based on these findings, we propose three strategies for engineering non-relativistic spin splitting: modifying the A-site cation size, strain engineering, and electric field control in superlattice structures. Our work establishes a framework for designing non-relativistic spin splitting in the Brillouin zone of oxide perovskites.

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Subhadeep Bandyopadhyay, Silvia Picozzi, Sayantika Bhowal. 2025-03-21. Designing Non-Relativistic Spin Splitting in Oxide Perovskites. https://doi.org/10.1103/1r6k-s46h

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