Optical phonon decay in bulk aluminum nitride

D. Y. Song; M. Holtz; A. Chandolu; S. A. Nikishin; E. N. Mokhov; Yu Makarov; H. Helava

doi:10.1063/1.2219092

Optical phonon decay in bulk aluminum nitride

D. Y. Song, M. Holtz, A. Chandolu, S. A. Nikishin, E. N. Mokhov, Yu Makarov, H. Helava

Electrical and Computer Engineering

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

24 Scopus citations

Abstract

We report Raman studies of the E ₂ ² and A ₁(LO) symmetry phonons of bulk A1N from 13 to 375 K. Based on observed dependences of the phonon energies and linewidths, and accounting for the temperature-dependent thermal expansion, we determine that both phonon lifetimes are limited by two-phonon decay. The E ₂ ² decays symmetrically. The A ₁(LO) asymmetrically decays into vibrations with energies 586 and 309 cm ^-1 which we attribute to A ₁(TO) and LA phonons from the M point of the Brillouin zone.

Original language	English
Article number	021901
Journal	Applied Physics Letters
Volume	89
Issue number	2
DOIs	https://doi.org/10.1063/1.2219092
State	Published - 2006

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title = "Optical phonon decay in bulk aluminum nitride",

abstract = "We report Raman studies of the E 2 2 and A 1(LO) symmetry phonons of bulk A1N from 13 to 375 K. Based on observed dependences of the phonon energies and linewidths, and accounting for the temperature-dependent thermal expansion, we determine that both phonon lifetimes are limited by two-phonon decay. The E 2 2 decays symmetrically. The A 1(LO) asymmetrically decays into vibrations with energies 586 and 309 cm -1 which we attribute to A 1(TO) and LA phonons from the M point of the Brillouin zone.",

author = "Song, {D. Y.} and M. Holtz and A. Chandolu and Nikishin, {S. A.} and Mokhov, {E. N.} and Yu Makarov and H. Helava",

note = "Funding Information: Work at Texas Tech University was supported by the National Science Foundation (Grant Nos. ECS-0323640 and ECS-0304224) and the J. F. Maddox Foundation.",

year = "2006",

doi = "10.1063/1.2219092",

language = "English",

volume = "89",

journal = "Applied Physics Letters",

issn = "0003-6951",

number = "2",

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TY - JOUR

T1 - Optical phonon decay in bulk aluminum nitride

AU - Song, D. Y.

AU - Holtz, M.

AU - Chandolu, A.

AU - Nikishin, S. A.

AU - Mokhov, E. N.

AU - Makarov, Yu

AU - Helava, H.

N1 - Funding Information: Work at Texas Tech University was supported by the National Science Foundation (Grant Nos. ECS-0323640 and ECS-0304224) and the J. F. Maddox Foundation.

PY - 2006

Y1 - 2006

N2 - We report Raman studies of the E 2 2 and A 1(LO) symmetry phonons of bulk A1N from 13 to 375 K. Based on observed dependences of the phonon energies and linewidths, and accounting for the temperature-dependent thermal expansion, we determine that both phonon lifetimes are limited by two-phonon decay. The E 2 2 decays symmetrically. The A 1(LO) asymmetrically decays into vibrations with energies 586 and 309 cm -1 which we attribute to A 1(TO) and LA phonons from the M point of the Brillouin zone.

AB - We report Raman studies of the E 2 2 and A 1(LO) symmetry phonons of bulk A1N from 13 to 375 K. Based on observed dependences of the phonon energies and linewidths, and accounting for the temperature-dependent thermal expansion, we determine that both phonon lifetimes are limited by two-phonon decay. The E 2 2 decays symmetrically. The A 1(LO) asymmetrically decays into vibrations with energies 586 and 309 cm -1 which we attribute to A 1(TO) and LA phonons from the M point of the Brillouin zone.

UR - http://www.scopus.com/inward/record.url?scp=33746046381&partnerID=8YFLogxK

U2 - 10.1063/1.2219092

DO - 10.1063/1.2219092

M3 - Article

AN - SCOPUS:33746046381

VL - 89

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 2

M1 - 021901

ER -

Optical phonon decay in bulk aluminum nitride

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