The mechanism of high-temperature superconductivity is one of the most challenging problems in condensed matter physics. It has remained unsettled for 35 years ever since Bednorz and Müller discovered high-temperature copper oxide (cuprate) superconductors in 1986. Consensuses are lacking even on some of its fundamental properties, such as the pairing symmetry.

Recently, a group of BAQIS researchers realized SnTe/PbTe monolayer lateral heterostructures and discovered both clockwise or counterclockwise vortex-oriented quadrant configurations of ferroelectric domains for the first time. This work, published online in Advanced Materials on July 3rd, 2021, could bring the application of two-dimensional (2D) in-plane ferroelectric heterostructures in nanoscale quantum devices one step closer.

Recently, the research team led by Prof. Qihua Xiong and their collaborators from Nanyang Technological University, Singapore have demonstrated the effective controllability of topological phases in a single perovskite exciton polariton lattice for the first time. This work is published in Science Advances entitled "Optical switching of topological phase in a perovskite polariton lattice".

Dr. Rui Wu, an Associate Research Scientist of BAQIS, published his new discovery this week on the journal Nature Electronics. This paper described about a novel method to prepare thin film materials with complex structures that can be used in next-generation information memory devices.