Curiosity about a mistake that left tiny dots on a germanium wafer with evaporated metal films led to the discovery of ...
UCLA doctoral student Yilin Wong noticed that some tiny dots had appeared on one of her samples, which had been accidentally left out overnight. The layered sample consisted of a germanium wafer ...
Using a specially developed etching apparatus ... which probe the electrical voltage across a sample when it is exposed to a temperature difference along a defined direction.