When two similar atomic layers with mismatching lattice constants — the constant distance between a layer’s unit cells — and/or orientation are stacked together, the resulting bilayer can exhibit a moiré pattern and form a moiré superlattice. Moiré patterns are interference patterns that typically arise when one object with a...
An international research team led by scientists at the University of California, Riverside, has observed light emission from a new type of transition between electronic valleys, known as intervalley transmissions. The research provides a new way to read out valley information, potentially leading to new types of devices. Current semiconductor...
A research team at the University of California, Riverside, has found that electronic cigarettes, often targeted to youth and pregnant women, produce a stress response in neural stem cells, which are critical cells in the brain. Present throughout life, stem cells become specialized cells with more specific functions, such as...
Raven’s Advanced Progressive Matrices, or APM, is a widely used standardized test to measure reasoning ability, often administered to undergraduate students. One drawback, however, is that the test, which has been in use for about 80 years, takes 40 to 60 minutes to complete. Another is that the test kit...
