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The surfaces of Al‐Co‐Ce bulk crystalline alloys have been successfully laser processed resulting in amorphous‐like surface layer formation with enhanced corrosion characteristics. The material system, Al84Co7.5Ce8.5, is one of several next generation alloy compositions scientifically designed to form a metallic glass under the proper processing conditions. This material system exhibits both local composition changes and enhanced corrosion resistance in comparison to their native counterparts.

High quality ZnO thin films grown by plasma enhanced chemical vapor deposition J. Appl. Phys. 91, 501 (2002); 10.1063/1.1415545Near band-edge transition in aluminum nitride thin films grown by metal organic chemical vapor deposition

The cover shows secondary electron images of corroded laser surface modified Al84Co7.5Ce8.5. It is clear that a large portion of the LSM surface layers remain, leading to speculation that the corrosion is preferentially occurring at cracks in the sample surface. More on this topic can be found in the article by J. G. Hoekstra et al. on page 805. The surfaces of Al‐Co‐Ce bulk crystalline alloys have been successfully laser processed resulting in amorphous‐like surface layer formation with enhanced corrosion characteristics. The material system, Al84Co7.5Ce8.5, is one of several next generation alloy compositions scientifically designed to form a metallic glass under the proper processing conditions. This material system exhibits both local composition changes and enhanced corrosion resistance in comparison to their native counterparts.

In the bulk SrS has an indirect bandgap of ~ 4.32 eV. When SrS is doped with tellurium, ultraviolet emission occurs at 360 nm (for singlet) and 400nm (for Te-Te dimers) due to recombination from bound exciton states. In this paper we discuss the ultraviolet emission of pulsed laser deposited thin films of SrS:Te grown at room temperature on Si. Deposited film thickness ranged from 0.1 -1.5 µm, with optimized films grown at ~0.5 µm to avoid peeling and cracking. Te doping was incorporated by both ion implantation and conventional diffusion of deposited Te capping films. The characteristics of the ultraviolet emission will be discussed along with results from microstructural, chemical and optical characterization techniques.