Alkali antimonide photocathodes with high quantum efficiency hold the promise of delivering electrons for highbrightness injectors. A drift type spectrometer (momentatron) was attached to the HZB preparation system to allow in-situ characterization within short time after fabrication and possibly identify correlations between growth process and cathode performance parameters.

Investigations for the melt growth gallium-antimonide (GaSb) semiconductor crystals are underway at the US Air Force Research Laboratory at Hanscom Air Force Base by the vertical gradient freeze (VGF) method utilizing a submerged heater. Electromagnetic stirring can be induced in the gallium-antimonide melt just above the crystal growth interface by applying a weak radial electric current in th...

Abstract Light activated modulation of neural activity is an emerging field for the basic investigation systems and development new therapeutic methods such as artificial retina. Colloidal inorganic nanocrystals have great potential interfaces due to their adjustable optoelectronic properties via high-level structural, compositional, size control. However, toxic heavy metal content (e.g., cadmi...

The CaBe2Ge2-type antimonide EuPd2Sb2 (P4/nmm, a = 462.43(7), c = 1056.1(2) pm) was synthesized by induction melting of the elements in a sealed tantalum tube. Temperature-dependent magnetic susceptibility measurements have revealed Curie-Weiss behavior with an experimental magnetic moment of 7.93(1) μB/Eu atom, indicating stable divalent europium. EuPd2Sb2 orders antiferromagnetically at TN = ...