EurekAlert  February 9, 2022 An international team of researchers (UK, Ireland, USA – Argonne National Laboratory) created a thin film of the ferroelectric lead titanate sandwiched between layers of the ferromagnet strontium ruthenate, each about 4 nanometres thick. The structure of the combined layers revealed that the domains in the lead titanate were a complex topological structure of lines of vortexes, spinning alternately in different directions. Almost identical behaviour has also been seen in ferromagnets where it is known to be generated by the Dzyaloshinskii–Moriya interaction (DMi). According to the researchers the difference between ferromagnetism and ferroelectricity becomes less and […]