Rohan Mishra1,Gwan Yeong Jung1,Guodong Ren1,Boyang Zhao2,Huandong Chen2,Di Xiao3,Jayakanth Ravichandran2
Washington University in St. Louis1,University of Southern California2,University of Washington3
Rohan Mishra1,Gwan Yeong Jung1,Guodong Ren1,Boyang Zhao2,Huandong Chen2,Di Xiao3,Jayakanth Ravichandran2
Washington University in St. Louis1,University of Southern California2,University of Washington3
Large polar vortices that span several 10's of nanometers in dimensions have been reported in several polar systems such as ferroelectric superlattices and nanowires. In this talk, we will report on the possible formation of atomically thin polar vortex-antivortex pairs in a quasi-1D chalcogenide, BaTiS3. We will discuss results from first-principles electronic structure calculations and phenomenological modeling that show the various competing structural distortions that can stabilize atomically thin vortices. We will discuss the evolution of such vortices with temperature, strain and electric field. We will end with experimental findings that provide indirect evidence of the presence of skinny vortex-antivortex pairs in BaTiS3 crystals. <br/>Acknowledgements: This work was supported by ARO through the MURI program with award number W911NF-21-1-0327.