. . . "Romanyuk, Olexandr" . "The atomic and electronic structures of the polar GaN(000-1) surface were investigated by x-ray photoelectron diffraction (XPD) and ab initio density-functional theory (DFT) calculations. A well-ordered GaN(000-1) surface of a free-standing GaN wafer was prepared by sample annealing in a NH3 atmosphere. A N-terminated bare (1 x1) structure was confirmed. An electronic band structure was investigated by DFT calculations. The surface state at the top of the valence band was localized for a relaxed (1x1) structure. The energy loss function (ELF) was computed in the framework of the many-body perturbation theory. Plasmon loss peak positions were found to be in good agreement with reflection-electron energy loss spectroscopy (REELS) measurements." . "3"^^ . . . "6"^^ . "2"^^ . "Atomic and electronic structure of N-terminated GaN(0001) (1 1) surface"@en . "Atomic and electronic structure of N-terminated GaN(0001) (1 1) surface" . "The atomic and electronic structures of the polar GaN(000-1) surface were investigated by x-ray photoelectron diffraction (XPD) and ab initio density-functional theory (DFT) calculations. A well-ordered GaN(000-1) surface of a free-standing GaN wafer was prepared by sample annealing in a NH3 atmosphere. A N-terminated bare (1 x1) structure was confirmed. An electronic band structure was investigated by DFT calculations. The surface state at the top of the valence band was localized for a relaxed (1x1) structure. The energy loss function (ELF) was computed in the framework of the many-body perturbation theory. Plasmon loss peak positions were found to be in good agreement with reflection-electron energy loss spectroscopy (REELS) measurements."@en . "000314465000013" . . "P(GPP204/10/P028), Z(AV0Z10100521)" . "398" . "clean surfaces; GaN; photoelectron diffraction; REELS; ab initio DFT; optical response"@en . . "RIV/68378271:_____/12:00390686" . "Romanyuk, Olexandr" . "Atomic and electronic structure of N-terminated GaN(0001) (1 1) surface" . "Journal of Physics: Conference Series" . . . "1" . . . . "Paskova, T." . . "124019" . . . . "RIV/68378271:_____/12:00390686!RIV13-GA0-68378271" . "10.1088/1742-6596/398/1/012013" . . "Ji\u0159\u00ED\u010Dek, Petr" . . "GB - Spojen\u00E9 kr\u00E1lovstv\u00ED Velk\u00E9 Brit\u00E1nie a Severn\u00EDho Irska" . . "1742-6588" . . . "[6F333F3BB29F]" . "Atomic and electronic structure of N-terminated GaN(0001) (1 1) surface"@en .