TY - JOUR
T1 - Theory of local-phonon-coupled low-energy anharmonic excitation of the interstitial oxygen in silicon
AU - Yamada-Kaneta, Hiroshi
AU - Kaneta, Chioko
AU - Ogawa, Tsutomu
PY - 1990/1/1
Y1 - 1990/1/1
N2 - The previous model for the low-energy anharmonic excitation of the interstitial oxygen in silicon [D. R. Bosomworth, W. Hayes, A. R. L. Spray, and G. D. Watkins, Proc. R. Soc. London, Ser. A 317, 133 (1970)] is expanded so that the coupling to the local phonon is included. The result of the calculation explains the previously observed absorption peaks of O16 and O18 in the 30-, 1100-, and 1200-cm-1 bands, confirming the energy-level scheme and transition assignment of Bosomworth et al. The coupling significantly reduces the level separations of the low-energy anharmonic excitation, and plays an important role in explaining the O18 isotope peak shifts. A physical interpretation is given to the calculated negative coupling constant. The origin of the 517- and 1700-cm-1 bands is also discussed.
AB - The previous model for the low-energy anharmonic excitation of the interstitial oxygen in silicon [D. R. Bosomworth, W. Hayes, A. R. L. Spray, and G. D. Watkins, Proc. R. Soc. London, Ser. A 317, 133 (1970)] is expanded so that the coupling to the local phonon is included. The result of the calculation explains the previously observed absorption peaks of O16 and O18 in the 30-, 1100-, and 1200-cm-1 bands, confirming the energy-level scheme and transition assignment of Bosomworth et al. The coupling significantly reduces the level separations of the low-energy anharmonic excitation, and plays an important role in explaining the O18 isotope peak shifts. A physical interpretation is given to the calculated negative coupling constant. The origin of the 517- and 1700-cm-1 bands is also discussed.
UR - http://www.scopus.com/inward/record.url?scp=0000093972&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000093972&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.42.9650
DO - 10.1103/PhysRevB.42.9650
M3 - Article
AN - SCOPUS:0000093972
VL - 42
SP - 9650
EP - 9656
JO - Physical Review B
JF - Physical Review B
SN - 0163-1829
IS - 15
ER -