The ability of magnetoelectric (ME) multiferroics to couple magnetic and ferroelectric orders suggests that they have the potential to add functionality to devices while also reducing energy consumption. Yet, achieving strong and direct ME coupling in single-phase multiferroic at room temperature remains highly challenging.

Here, we demonstrate that lowering the symmetry of BiFeO3 through oxygen octahedron distortion and controlled tilting is possible to develop room temperature multiferroics in which ferroelectricity and ferromagnetism share a common origin. The resulting multiferroic shows room temperature dynamic ME effect, as evidenced by the resonant features of the complex dielectric permittivity and complex magnetic permeability at microwave frequencies.

This new room-temperature multiferroic material provides great potential for construction of low-energy non-volatile magnetoelectric storages and sensors. [Phys. Rev. B 112, 054423 – Published 8 August, 2025]