Nara Lee

TL;DR: The observation of nanoscale conduction at ferroelectric domain walls in hexagonal HoMnO(3) protected by the topology of multiferroic vortices is reported, paving the way for understanding the semiconducting properties of the domains and domain Walls in small-gap ferroelectrics.

TL;DR: In this article, the topology of multiferroic vortices using in situ conductive atomic force microscopy, piezoresponse forces microscopy and Kelvin-probe forces was observed at low temperatures.

TL;DR: A new mechanical bonding technique is developed, enabling the fabrication of high-quality junctions between materials, unobtainable by conventional approaches, which opens new directions for fundamental studies in condensed matter physics and enable a wide range of applications in spintronics and quantum computing.

TL;DR: In this paper, the authors discovered stripe patterns of trimerization-ferroelectric domains in hexagonal REMnO(3) (RE=Ho,···,Lu) crystals (grown below ferroelectric transition temperatures (T(c)), reaching up to 1435 °C), in contrast with the vortex patterns in YMnO (3).

TL;DR: These results demonstrate that the collective domain wall magnetism can be controlled by external magnetic fields and represent a major advancement in the manipulation of local magnetic moments by harnessing cross-coupled domain walls.