Physicists discover new quantum phases in low-dimensional polar systems

Phys.org  December 13, 2023 Quantum fluctuations (QFs) caused by zero-point phonon vibrations (ZPPVs) are known to prevent the occurrence of polar phases in bulk incipient ferroelectrics down to 0 K. On the other hand, little is known about the effects of QFs on the recently discovered topological patterns in ferroelectric nanostructures. A team of researchers in the US (University of Arkansas, Fayetteville, Lonestar College, Texas) has shown how QFs affect the topology of several dipolar phases in ultrathin Pb(Zr0.4Ti0.6)O3 (PZT) films. They showed that the ZPPVs do not suppress polar patterns but rather stabilize the labyrinth, bimeron and bubble phases within […]