Ferroelectric and ferroelastic domain walls are 2D topological defects with thicknesses
approaching the unit cell level. When this spatial confinement is combined with observations …

The flexoelectricity describes the contribution of the linear couplings between the electric
polarization and strain gradient and between polarization gradient and strain to the …

Ferroelectric domain walls naturally form at nanoscale interfaces of polar order leading to
electronic properties distinct from the bulk that can also be electrically programmed. These …

It has been known for more than a decade that phonons can produce an off-diagonal
thermal conductivity in the presence of a magnetic field. Recent studies of thermal Hall …

Quantum materials can display physical phenomena rooted in the geometry of electronic
wavefunctions. The corresponding geometric tensor is characterized by an emergent field …

SrTiO 3 is an incipient ferroelectric that is believed to exhibit a prototype displacive, soft
mode ferroelectric transition when subjected to mechanical stress or alloying. We use high …

The occurrence of superconductivity in doped SrTiO3 at low carrier densities points to the
presence of an unusually strong pairing interaction that has eluded understanding for …

Compound phases often display properties that are symmetry forbidden relative to their
nominal, average crystallographic symmetry, even if extrinsic reasons (defects, strain, or …

We show that flexoelectric effect is responsible for the non-Ising character of a 180°
ferroelectric domain wall. The wall, long considered being of Ising type, contains both Bloch …

Pinned and mobile ferroelastic domain walls are detected in response to mechanical stress
in a Mn3+ complex with two-step thermal switching between the spin triplet and spin quintet …