Determination of the Conduction Band Electron Effective Mass in Hexagonal GaN

M. Drechsler, D.M. Hofmann, Bernhard Meyer, Theeradetch Detchprohm, Hiroshi Amano, Isamu Akasaki Isamu Akasaki

Japanese Journal of Applied Physics · 1995 · 171 citations · 6 references

Concepts

Abstract

The electron effective mass in hexagonal GaN films grown by metal organic vapor phase epitaxy on sapphire substrates is determined by cyclotron resonance experiments. Its value is m p * = 0.22±0.005 m o . Taking polaron effects into account the band edge mass is m b * = 0.20±0.005 m o . From the resonance linewidth a mobility of 3500 cm 2 /V·s at 6 K is obtained.

References

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