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New Hydrogen‐Localized Vibrational Modes in Proton‐Implanted GaAs Activated by γ‐Ray Irradiation
Author(s) -
Wang L. P.,
Zhu W. X.,
Qin G. G.
Publication year - 1995
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221900125
Subject(s) - irradiation , proton , infrared spectroscopy , hydrogen , infrared , absorption (acoustics) , chemistry , molecular vibration , absorption spectroscopy , materials science , photochemistry , molecule , optics , physics , organic chemistry , quantum mechanics , nuclear physics , composite material
Two new hydrogen‐localized vibrational modes (LVMs) in proton‐implanted GaAs activated by γ‐ray irradiation are observed at 1726 and 1688 cm −1 (295 K), and at 1771 and 1702 cm −1 (4.2 K) in infrared absorption spectra, respectively. The integrated absorption intensities of both bands increase with increasing γ‐ray radiation dose. A tentative structural model for the new hydrogen LVMs is suggested.