Coexistence of ferroelectricity and altermagnetism in wurtzite vanadium oxide: a first-principles study
Abstract
along the [001] direction, substantially higher than conventional perovskite ferroelectrics. The polarization switching process, with a moderate energy barrier of 0.71 eV per f.u., confirms its ferroelectric reversibility. Strikingly, reversing the ferroelectric polarization induces a complete reversal of spin character near the Fermi level, thereby electrically toggling the spin-resolved electronic structure without altering the total magnetization. These findings establish w-VO as a rare multiferroic altermagnet in which ferroelectric polarization and compensated spin order are intrinsically coupled. The ability to control spin polarization and spin Hall response through electric-field-driven polarization switching offers a new paradigm for non-volatile, field-free spintronic devices based on voltage-controlled spin functionality.
Fields of Study & Subjects
Multiferroics and related materials
Magnetic and transport properties of perovskites and related materials
Magnetic Properties and Synthesis of Ferrites
Publication details
- Journal / source
- RSC Advances
- Publisher
- Royal Society of Chemistry (RSC)
- Volume
- 16
- Issue
- 5
- Pages
- 4204–4213
- Publication date
- 1 January 2026
- Language
- EN