. "9" . . "4"^^ . . . "I, P(GBP108/12/G108)" . "A nondestructive approach to determine the wurtzite GaN crystal polarity based on X-ray photoelectron diffraction is proposed. The approach, utilizing the ratio of photoemitted electron currents excited by a standard laboratory X-ray source from the N 1s level in the (10 -10) plane at polar angles of 20 and 25 , is tested on GaN crystals. The photoelectron intensity ratio I20/I25 is larger or smaller than unity for GaN(0001) or GaN(000 -1), respectively. The approach can be used for polarity determination of other binary wurtzite crystals. The atom with the smaller electron scattering cross-section should be used as the emitter."@en . . "Romanyuk, Olexandr" . "000323846900015" . . . . . "GaN; photoelectron diffraction; wurtzite; surface polarity"@en . "RIV/68378271:_____/13:00396607" . . "Bieloshapka, Igor" . . "Ji\u0159\u00ED\u010Dek, Petr" . . "GaN polarity determination by photoelectron diffraction" . "Romanyuk, Olexandr" . "A nondestructive approach to determine the wurtzite GaN crystal polarity based on X-ray photoelectron diffraction is proposed. The approach, utilizing the ratio of photoemitted electron currents excited by a standard laboratory X-ray source from the N 1s level in the (10 -10) plane at polar angles of 20 and 25 , is tested on GaN crystals. The photoelectron intensity ratio I20/I25 is larger or smaller than unity for GaN(0001) or GaN(000 -1), respectively. The approach can be used for polarity determination of other binary wurtzite crystals. The atom with the smaller electron scattering cross-section should be used as the emitter." . "76168" . . "GaN polarity determination by photoelectron diffraction"@en . "Paskova, T." . . "0003-6951" . "GaN polarity determination by photoelectron diffraction" . "Barto\u0161, Igor" . . "Bieloshapka, Igor" . "[2266BB192826]" . "http://apl.aip.org/resource/1/applab/v103/i9/p091601_s1?isAuthorized=no" . "10.1063/1.4819761" . "5"^^ . "GaN polarity determination by photoelectron diffraction"@en . "4"^^ . . "103" . . . . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "RIV/68378271:_____/13:00396607!RIV14-GA0-68378271" . "Applied Physics Letters" .