Non-parabolicity of the conduction band of wurtzite GaN

S. Syed, J. B. Heroux, Y. J. Wang +3

Using cyclotron resonance, we measure the effective mass, $m$*, of electrons in AlGaN/GaN heterostructures with densities, $n_{2D}\sim 1-6\times 10^{12}$cm${}^{-2}$. From our extensiv…