Elimination of spurious solutions from k.p theory with Fourier transform technique and Burt-Foreman operator ordering

作者：Zhao Qiuji; Mei Ting^*; Zhang Dao Hua

来源：Journal of Applied Physics, 2012, 111(5): 053702.

DOI：10.1063/1.3689821

To eliminate spurious solutions in the multiple-band k.p theory, we developed the Fourier transform-based k.p approach through combining the Fourier transform technique with Burt-Foreman operator ordering. The performance is perfect for the six-band k.p calculation, and the spurious solutions in the conduction band met in the eight-band calculation can also be easily screened away in the inborn cut-off step in FTM, i.e., choosing a proper order of Fourier truncation. Truncating high-order terms of Fourier coefficients of the envelope function prevents the occurrence of a wild-spreading spectrum of the Fourier expansion coefficients, which can be taken as the signature of spurious solutions. VC 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3689821]

• 单位
  华南师范大学; 南阳理工学院