Mechanical deformation of a crystal can have a profound effect on its physical properties.
Notably, even small modifications of bond geometry can completely change the size and …

The exceptional control of the electronic energy bands in atomically thin quantum materials
has led to the discovery of several emergent phenomena. However, at present there is no …

Abstract Large-scale two-dimensional (2D) moiré superlattices are driving a revolution in
designer quantum materials. The electronic interactions in these superlattices, strongly …

We present microfabricated thermal actuators to engineer the biaxial strain in two-
dimensional (2D) materials. These actuators are based on microheater circuits patterned …

Transitional metal carbides and nitrides (MXenes) have promise for incorporation into
multifunctional composites due to their high electrical conductivity and excellent mechanical …

Stackings in graphene have a pivotal role in properties that could be useful in the future, as
seen in the recently found superconductivity of twisted bilayer graphene. Beyond bilayer …

The electron-hole exchange interaction is a fundamental mechanism that drives valley
depolarization via intervalley exciton hopping in semiconductor multivalley systems. Here …

The evolution and propagation of cracks in exfoliated monolayer graphene single crystals
and their associated stress fields are studied using Raman spectroscopy as a strain sensor …

We describe a simple setup generating pure valley currents—valley transport without charge
transport—in strained graphene nanoribbons with zigzag edges. The crucial ingredient is a …

Microscopic corrugations are ubiquitous in graphene even when placed on atomically flat
substrates. These result in random local strain fluctuations limiting the carrier mobility of high …