 With the changing of the band gap, (0.4 nm/K) an algorithm calculates the temperature (all 250 ms).GaAs may have applications in spintronics as it can be used instead of platinum in spin-charge converters and may be more tunable.The environment, health and safety aspects of gallium arsenide sources (such as trimethylgallium and arsine) and industrial hygiene monitoring studies of metalorganic precursors have been reported.