The physical sciences community is increasingly taking advantage of the possibilities offered
by modern data science to solve problems in experimental chemistry and potentially to …

Scaling the Si MOSFET is reconsidered. Requirements on subthreshold leakage control force
conventional scaling to use high doping as the device dimension penetrates into the deep-…

We demonstrate the first successful mapping of the two-dimensional electrostatic potential
in semiconductor transistor structures by electron holography. Our high resolution 2D phase …

Serial femtosecond crystallography using ultrashort pulses from x-ray free electron lasers (XFELs)
enables studies of the light-triggered dynamics of biomolecules. We used …

A variety of organisms have evolved mechanisms to detect and respond to light, in which the
response is mediated by protein structural changes after photon absorption. The initial step …

We show that the c-Si→ a-SiO 2 transformation takes place via an ordered crystalline oxide
layer≃ 5 Å thick. Modeling of high-resolution transmission electron-microscope lattice …

Intense femtosecond x-ray pulses from free-electron laser sources allow the imaging of
individual particles in a single shot. Early experiments at the Linac Coherent Light Source (LCLS) …

SARS-CoV-2 infection is controlled by the opening of the spike protein receptor binding
domain (RBD), which transitions from a glycan-shielded ‘down’ to an exposed ‘up’ state to bind …

Moves are afoot to illuminate particles in flight with powerful X-ray bursts, to determine the
structure of single molecules, viruses and nanoparticles. This would circumvent important …

Using electroreflectance spectroscopy, we have observed new optical transitions near 0.76,
1.25, and 2.31 eV in an ordered strained-layer Ge-Si superlattice. The possible origins of …