Phys. Rev. B 60, 13265–13268 (1999)Raman spectroscopy of hydrogen molecules in GaAsReceived 11 March 1999; published in the issue dated 15 November 1999 The room temperature Raman vibrational modes of isolated H2, D2, and HD molecules in GaAs exposed to a H2, D2, and H2:D2 plasma, have been measured at 3911, 2827, and 3429cm-1, respectively. At low temperatures the ortho-para modes of the H2 line are resolved. Decreasing the temperature to 10 K causes the H2 Raman frequency to increase by 14 to 3925cm-1. A lack of splitting of the H2 mode under uniaxial stress confirms that the H2 molecule is free to rotate within the GaAs lattice. © 1999 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.60.13265
DOI:
10.1103/PhysRevB.60.13265
PACS:
71.55.Eq, 78.30.Fs, 33.20.Fb
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