A moiré pattern is formed when two copies of a periodic pattern are overlaid with a relative
twist. We address the electronic structure of a twisted two-layer graphene system, showing …

The notion that stress plays a role in the etiology of psychotic disorders, especially
schizophrenia, is longstanding. However, it is only in recent years that the potential neural …

The anomalous Hall effect (AHE) occurs in solids with broken time-reversal symmetry,
typically in a ferromagnetic phase, as a consequence of spin-orbit coupling. Experimental and …

An exciton is the particle-like entity that forms when an electron is bound to a positively
charged ‘hole’. An ordered electronic state in which excitons condense into a single quantum …

Time-resolved terahertz spectroscopy is used to probe ultrafast carrier dynamics and terahertz
conductivity in photoexcited thin films of silicon nanocrystals, polynanocrystalline silicon, …

Theories of the regulation of cognition suggest a system with two necessary components: one
to implement control and another to monitor performance and signal when adjustments in …

Conflict monitoring by the anterior cingulate cortex (ACC) has been posited to signal a need
for greater cognitive control, producing neural and behavioral adjustments. However, the …

We describe a new effect in semiconductor spintronics that leads to dissipationless spin
currents in paramagnetic spin-orbit coupled systems. We argue that in a high-mobility two-…

Recent progress in understanding the topological properties of condensed matter has led to
the discovery of time-reversal-invariant topological insulators. A remarkable and useful …

Background Previous twin studies have supported a genetic contribution to the major categories
of psychotic disorders, but few of these have employed operational diagnostic criteria, …