{"author":[{"orcid":"0000-0002-2717-5076","first_name":"Wolf Gero","id":"468","last_name":"Schmidt","full_name":"Schmidt, Wolf Gero"},{"full_name":"FATTEBERT, J. L.","last_name":"FATTEBERT","first_name":"J. L."},{"full_name":"BERNHOLC, J.","last_name":"BERNHOLC","first_name":"J."},{"full_name":"BECHSTEDT, F.","last_name":"BECHSTEDT","first_name":"F."}],"publication_identifier":{"issn":["0218-625X","1793-6667"]},"doi":"10.1142/s0218625x99001281","date_created":"2019-10-10T12:56:47Z","publication_status":"published","department":[{"_id":"15"},{"_id":"170"},{"_id":"295"}],"volume":6,"date_updated":"2022-01-06T06:51:43Z","intvolume":" 6","issue":"6","abstract":[{"lang":"eng","text":" We calculate the reflectance anisotropy for GaP(001)(2×4) surfaces using a real-space multigrid method and ab initio pseudopotentials. Our results obtained within DFT-LDA show good qualitative agreement with recent experiments. This holds in particular for the stoichiometric trends. A strong negative anisotropy at low photon energies is linked to the formation of Ga–Ga bonds along the [110] direction. There are discrepancies, however, with respect to the line shape and the energetic positions of characteristic peaks. Substantial improvement is achieved by using a numerically efficient GW approach with approximations for local-field effects and dynamical screening. We find that the spectral features related to transitions between surface perturbed bulk wave functions are more strongly affected by self-energy corrections than anisotropies directly linked to surface electronic states. "}],"funded_apc":"1","title":"SELF-ENERGY EFFECTS IN THE OPTICAL ANISOTROPY OF GaP(001)","year":"1999","user_id":"16199","_id":"13765","status":"public","citation":{"apa":"Schmidt, W. G., FATTEBERT, J. L., BERNHOLC, J., & BECHSTEDT, F. (1999). SELF-ENERGY EFFECTS IN THE OPTICAL ANISOTROPY OF GaP(001). Surface Review and Letters, 6(6), 1159–1165. https://doi.org/10.1142/s0218625x99001281","mla":"Schmidt, Wolf Gero, et al. “SELF-ENERGY EFFECTS IN THE OPTICAL ANISOTROPY OF GaP(001).” Surface Review and Letters, vol. 6, no. 6, 1999, pp. 1159–65, doi:10.1142/s0218625x99001281.","chicago":"Schmidt, Wolf Gero, J. L. FATTEBERT, J. BERNHOLC, and F. BECHSTEDT. “SELF-ENERGY EFFECTS IN THE OPTICAL ANISOTROPY OF GaP(001).” Surface Review and Letters 6, no. 6 (1999): 1159–65. https://doi.org/10.1142/s0218625x99001281.","ama":"Schmidt WG, FATTEBERT JL, BERNHOLC J, BECHSTEDT F. SELF-ENERGY EFFECTS IN THE OPTICAL ANISOTROPY OF GaP(001). Surface Review and Letters. 1999;6(6):1159-1165. doi:10.1142/s0218625x99001281","bibtex":"@article{Schmidt_FATTEBERT_BERNHOLC_BECHSTEDT_1999, title={SELF-ENERGY EFFECTS IN THE OPTICAL ANISOTROPY OF GaP(001)}, volume={6}, DOI={10.1142/s0218625x99001281}, number={6}, journal={Surface Review and Letters}, author={Schmidt, Wolf Gero and FATTEBERT, J. L. and BERNHOLC, J. and BECHSTEDT, F.}, year={1999}, pages={1159–1165} }","ieee":"W. G. Schmidt, J. L. FATTEBERT, J. BERNHOLC, and F. BECHSTEDT, “SELF-ENERGY EFFECTS IN THE OPTICAL ANISOTROPY OF GaP(001),” Surface Review and Letters, vol. 6, no. 6, pp. 1159–1165, 1999.","short":"W.G. Schmidt, J.L. FATTEBERT, J. BERNHOLC, F. BECHSTEDT, Surface Review and Letters 6 (1999) 1159–1165."},"type":"journal_article","page":"1159-1165","language":[{"iso":"eng"}],"publication":"Surface Review and Letters"}