Vibrational spectroscopy of group-II-acceptor--hydrogen complexes in GaP

Journal Article · Sun Oct 15 00:00:00 EDT 1995 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.52.11859· OSTI ID:165777

McCluskey, M D; Haller, E E ^[1]; Walker, J; Johnson, N M ^[2]

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1. Lawrence Berkeley National Laboratory and University of California at Berkeley, Berkeley, California 94720 (United States)
2. Xerox Palo Alto Research Center, Palo Alto, California 94304 (United States)

Using infrared absorption spectroscopy, we have observed the local vibrational modes (LVM`s) of group-II-acceptor--hydrogen complexes in GaP. In addition to the previously observed zinc-hydrogen complexes, we report modes corresponding to beryllium-hydrogen and cadmium-hydrogen complexes. In GaP:Be, we attribute the modes at 2292.2 and 1669.8 cm{sup {minus}1} to phosphorus-hydrogen and phosphorus-deuterium bond-stretching modes of complexes adjacent to the beryllium acceptors. In GaP:Cd, we attribute the modes at 2434.0 and 1768.3 cm{sup {minus}1} to similar complexes adjacent to the cadmium acceptors. The temperature-dependent shifts of the hydrogen LVM`s in GaP:Be and GaP:Zn are shown to be proportional to the lattice thermal energy {ital U}({ital T}), a consequence of the anharmonic coupling between the LVM`s and the lattice phonons.

• OSTI ID: 165777
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 16 Vol. 52; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
66 PHYSICS
ABSORPTION SPECTROSCOPY
BERYLLIUM COMPLEXES
CADMIUM COMPLEXES
CHEMICAL BONDS
DEUTERIUM IONS
GALLIUM PHOSPHIDES
HYDROGEN COMPLEXES
INFRARED SPECTRA
LATTICE PARAMETERS
OSCILLATION MODES
PHONONS
PLASMA
SEMICONDUCTOR MATERIALS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
ZINC COMPLEXES