In recent years, an increasing number of 2D van der Waals (vdW) materials are theory‐
predicted or laboratory‐validated to possess in‐plane (IP) and/or out‐of‐plane (OOP) …

Stacking orders in 2D van der Waals (vdW) materials dictate the relative sliding (lateral
displacement) and twisting (rotation) between atomically thin layers. By altering the stacking …

Ferroelectricity in ultrathin two-dimensional (2D) materials has attracted broad interest due
to potential applications in nonvolatile memory, nanoelectronics and optoelectronics …

Most nonferroelectric two-dimensional materials can be endowed with so-called sliding
ferroelectricity via nonequivalent homobilayer stacking, which is not applicable to …

Ferroelectricity, a spontaneous and reversible electric polarization, is found in certain
classes of van der Waals (vdW) materials. The discovery of ferroelectricity in twisted vdW …

Although the monolayers of most 2D materials are non‐ferroelectric with highly symmetric
lattices, symmetry breaking may take place in their bilayers upon some stacking …

Multiferroic materials offer a promising avenue for manipulating digital information by
leveraging the cross-coupling between ferroelectric and ferromagnetic orders. Despite the …

In conventional ferroelectric materials, polarization is an intrinsic property limited by bulk
crystallographic structure and symmetry. Recently, it has been demonstrated that polar order …

With the advent of the post Moore era, modern electronics require further device
miniaturization of all electronic components, particularly ferroelectric memories, due to the …

Sliding ferroelectricity associated with interlayer translation is an excellent candidate for
ferroelectric device miniaturization. However, the weak polarization gives rise to the poor …