Excitonic reflectance of GaAs crystals cleaved in liquid helium
作者： L. Schultheis , I. Balslev
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摘要: We report optical reflectance spectra near the $n=1$ excitonic resonance of GaAs. The experimental results from crystals cleaved in liquid helium and exposed to air exhibit noticeable changes line shape. Comparison with a model based on adiabatic approximation indicates that line-shape distortions by surface electric fields are unavoidable for air-exposed GaAs surfaces.
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sci-hub.se 参考文章(18)
J. J. Hopfield, D. G. Thomas, Theoretical and Experimental Effects of Spatial Dispersion on the Optical Properties of Crystals Physical Review. ,vol. 132, pp. 563- 572 ,(1963) , 10.1103/PHYSREV.132.563
D. D. Sell, S. E. Stokowski, R. Dingle, J. V. DiLorenzo, Polariton Reflectance and Photoluminescence in High-Purity GaAs Physical Review B. ,vol. 7, pp. 4568- 4586 ,(1973) , 10.1103/PHYSREVB.7.4568
F. Evangelisti, A. Frova, F. Patella, Nature of the dead layer in CdS and its effect on exciton reflectance spectra Physical Review B. ,vol. 10, pp. 4253- 4261 ,(1974) , 10.1103/PHYSREVB.10.4253
Shōichirō Sakoda, The Surface Effect on the Reflectivity Spectrum Originating from a Large Radius Exciton Journal of the Physical Society of Japan. ,vol. 40, pp. 152- 160 ,(1976) , 10.1143/JPSJ.40.152
I. Balslev, The Excitonic Surface Potential in Semiconductors Physica Status Solidi B-basic Solid State Physics. ,vol. 88, pp. 155- 161 ,(1978) , 10.1002/PSSB.2220880118
J. Lagois, E. Wagner, W. Bludau, K. Lösch, Influence of exciton impact ionization and illumination intensity on the exciton-polariton reflectance of GaAs Physical Review B. ,vol. 18, pp. 4325- 4331 ,(1978) , 10.1103/PHYSREVB.18.4325
J.U. Fischbach, W. Rühle, D. Bimberg, E. Bauser, Experimental determination of the anisotropy of the exciton wave function of GaAs in a magnetic field Solid State Communications. ,vol. 18, pp. 1255- 1258 ,(1976) , 10.1016/0038-1098(76)90952-2
A. Stahl, Model of the Excitonic Surface Layer in Normal Incidence Reflection Physica Status Solidi B-basic Solid State Physics. ,vol. 106, pp. 575- 580 ,(1981) , 10.1002/PSSB.2221060220
B. Fischer, H. J. Stolz, Photoluminescence of pure GaAs crystals cleaved in ultrahigh vacuum Applied Physics Letters. ,vol. 40, pp. 56- 58 ,(1982) , 10.1063/1.92923
U. Heim, P. Hiesinger, Luminescence and Excitation Spectra of Exciton Emission in GaAs Physica Status Solidi B-basic Solid State Physics. ,vol. 66, pp. 461- 470 ,(1974) , 10.1002/PSSB.2220660208