The N- and H-vibrational modes in hydrogenated GaAs12yNy alloys have been studied by infrared absorption spectroscopy. Data for samples containing both H and D show that the dominant defect complex seen in the infrared spectrum of hydrogenated GaAs12yNy contains two weakly coupled N-H stretching modes. This conclusion is inconsistent with the predictions of theory for an H2*(N) defect that has been proposed recently to explain the properties of H in GaAs12yNy and InxGa12xAs12yNy alloys.
Vibrational spectroscopy of hydrogenated GaAs1-yNy: A structure-sensitive test of an H2*(N) model / F., Jiang; Michael, Stavola; Capizzi, Mario; Polimeni, Antonio; A., AMORE BONAPASTA; F., Filippone. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1550-235X. - STAMPA. - 69:(2004), pp. 041309-1-041309-4. [10.1103/PhysRevB.69.041309]
Vibrational spectroscopy of hydrogenated GaAs1-yNy: A structure-sensitive test of an H2*(N) model
CAPIZZI, Mario;POLIMENI, Antonio;
2004
Abstract
The N- and H-vibrational modes in hydrogenated GaAs12yNy alloys have been studied by infrared absorption spectroscopy. Data for samples containing both H and D show that the dominant defect complex seen in the infrared spectrum of hydrogenated GaAs12yNy contains two weakly coupled N-H stretching modes. This conclusion is inconsistent with the predictions of theory for an H2*(N) defect that has been proposed recently to explain the properties of H in GaAs12yNy and InxGa12xAs12yNy alloys.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
