(a) Schematics of nonreciprocal transports by fluctuating Cooper pairs. (b) Observed amplitude of nonreciprocity in the chiral organic superconductor in comparison with polar inorganic superconductors ...

In this paper, we demonstrate computationally the existence of magnetoelectric multipoles, arising from the second-order term in the multipole expansion of a magnetization density in a magnetic field, ...

Adding a Schottky junction to certain crystals can turn them into piezoelectric or pyroelectric crystals, even if they were unaffected by deformation or heat before, according to the the University of ...

A substance that contains polar covalent bonds may not be overall polar. This is due to the shape of the molecule. Water molecules are polar molecules. Both of the bonds inside the molecule are polar ...

Weyl semimetals. Courtesy: Haim Beidenkopf, the Weizmann Institute of Science Topological materials can be insulating in the bulk but can conduct electricity extremely well on their edge via special, ...

A twisted bilayer of hexagonal boron-nitride. The moiré polar domains have nontrivial topology, forming a network of polar merons and antimerons. (Image: Université de Liège) Out-of-plane polarization ...

Professor James Rondinelli, Research Assistant Professor Danilo Puggioni, Lauren Walters (PhD '22) Recent work from Northwestern Engineering’s James Rondinelli could lead to a new class of metals that ...