Far-Infrared Reflection Studies in Ordered GaInP2

F. Alsina; H. Cheong; J. Webb; A. Mascarenhas; J. Geisz; J. Olson

doi:10.1103/PhysRevB.56.13126

Far-Infrared Reflection Studies in Ordered GaInP2

F. Alsina, H. Cheong, J. Webb, A. Mascarenhas, J. Geisz, J. Olson

Chemistry and Nanoscience

National Renewable Energy Laboratory

Research output: Contribution to journal › Article › peer-review

17 Scopus Citations

Abstract

We report on room-temperature polarized far-infrared reflectance in partially ordered GaInP performed with the incidence plane parallel to the growth and ordering directions. Measurements in the (Formula presented)-polarization geometry show only one feature related to the vibrations in the plane of ordering. On the contrary, those performed using (Formula presented) polarization display a structure appearing in the range of InP-like vibrations as the order parameter increases, which we relate to a resonance with longitudinal-optic mode character due to the anisotropy of the longitudinal phonons.

Original language	American English
Pages (from-to)	13126-13131
Number of pages	6
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	56
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevB.56.13126 https://doi.org/10.1103/PhysRevB.56.13126
State	Published - 1997

NREL Publication Number

NREL/JA-590-24434

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abstract = "We report on room-temperature polarized far-infrared reflectance in partially ordered GaInP performed with the incidence plane parallel to the growth and ordering directions. Measurements in the (Formula presented)-polarization geometry show only one feature related to the vibrations in the plane of ordering. On the contrary, those performed using (Formula presented) polarization display a structure appearing in the range of InP-like vibrations as the order parameter increases, which we relate to a resonance with longitudinal-optic mode character due to the anisotropy of the longitudinal phonons.",

author = "F. Alsina and H. Cheong and J. Webb and A. Mascarenhas and J. Geisz and J. Olson",

year = "1997",

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AU - Alsina, F.

AU - Cheong, H.

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AU - Mascarenhas, A.

AU - Geisz, J.

AU - Olson, J.

PY - 1997

Y1 - 1997

N2 - We report on room-temperature polarized far-infrared reflectance in partially ordered GaInP performed with the incidence plane parallel to the growth and ordering directions. Measurements in the (Formula presented)-polarization geometry show only one feature related to the vibrations in the plane of ordering. On the contrary, those performed using (Formula presented) polarization display a structure appearing in the range of InP-like vibrations as the order parameter increases, which we relate to a resonance with longitudinal-optic mode character due to the anisotropy of the longitudinal phonons.

AB - We report on room-temperature polarized far-infrared reflectance in partially ordered GaInP performed with the incidence plane parallel to the growth and ordering directions. Measurements in the (Formula presented)-polarization geometry show only one feature related to the vibrations in the plane of ordering. On the contrary, those performed using (Formula presented) polarization display a structure appearing in the range of InP-like vibrations as the order parameter increases, which we relate to a resonance with longitudinal-optic mode character due to the anisotropy of the longitudinal phonons.

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U2 - 10.1103/PhysRevB.56.13126

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JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 20

ER -

Far-Infrared Reflection Studies in Ordered GaInP2

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