Isotopic shifts of the low-energy excitations of interstitial oxygen in germanium

K. Laßmann; C. Linsenmaier; F. Maier; F. Zeller; E. E. Haller; K. M. Itoh; L. I. Khirunenko; B. Pajot; H. Müssig

doi:10.1016/S0921-4526(98)01391-X

Isotopic shifts of the low-energy excitations of interstitial oxygen in germanium

K. Laßmann, C. Linsenmaier, F. Maier, F. Zeller, E. E. Haller, K. M. Itoh, L. I. Khirunenko, B. Pajot, H. Müssig

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Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

Abstract

The rotational states of O_i in natural Ge as determined by phonon spectroscopy are found to be shifted in isotopically enriched Ge:O_i crystals. These shifts are larger than compatible with the line width in natural Ge if only the motion of the quasi-free Ge-O-Ge molecule is considered. Because of the reduced isotope scattering of the phonons in the enriched Ge the position of higher excited states could be determined. This allows to estimate the height of the axial potential barrier by extending to Ge:O the Yamada-Kaneta model for Si:O.

Original language	English
Pages (from-to)	384-387
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	263-264
DOIs	https://doi.org/10.1016/S0921-4526(98)01391-X
Publication status	Published - 1999 Mar
Event	Proceedings of the 1998 9th International Conference on Phonon Scattering in Condensed Matter, PHONONS 98 - Lancaster, Great Britain Duration: 1998 Jul 26 → 1998 Jul 31

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/S0921-4526(98)01391-X

Cite this

@article{e0ce7142691641f8ac7f09010956f13d,

title = "Isotopic shifts of the low-energy excitations of interstitial oxygen in germanium",

abstract = "The rotational states of Oi in natural Ge as determined by phonon spectroscopy are found to be shifted in isotopically enriched Ge:Oi crystals. These shifts are larger than compatible with the line width in natural Ge if only the motion of the quasi-free Ge-O-Ge molecule is considered. Because of the reduced isotope scattering of the phonons in the enriched Ge the position of higher excited states could be determined. This allows to estimate the height of the axial potential barrier by extending to Ge:O the Yamada-Kaneta model for Si:O.",

author = "K. La{\ss}mann and C. Linsenmaier and F. Maier and F. Zeller and Haller, {E. E.} and Itoh, {K. M.} and Khirunenko, {L. I.} and B. Pajot and H. M{\"u}ssig",

note = "Funding Information: Helpful discussions with E. Artacho, Madrid, W. Eisenmenger, Stuttgart, H. Yamada-Kaneta, Kawasaki, and financial support from the European Community (INTAS) and the Deutsche Forschungsgemeinschaft are gratefully acknowledged. ; Proceedings of the 1998 9th International Conference on Phonon Scattering in Condensed Matter, PHONONS 98 ; Conference date: 26-07-1998 Through 31-07-1998",

year = "1999",

month = mar,

doi = "10.1016/S0921-4526(98)01391-X",

language = "English",

volume = "263-264",

pages = "384--387",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Isotopic shifts of the low-energy excitations of interstitial oxygen in germanium

AU - Laßmann, K.

AU - Linsenmaier, C.

AU - Maier, F.

AU - Zeller, F.

AU - Haller, E. E.

AU - Itoh, K. M.

AU - Khirunenko, L. I.

AU - Pajot, B.

AU - Müssig, H.

N1 - Funding Information: Helpful discussions with E. Artacho, Madrid, W. Eisenmenger, Stuttgart, H. Yamada-Kaneta, Kawasaki, and financial support from the European Community (INTAS) and the Deutsche Forschungsgemeinschaft are gratefully acknowledged.

PY - 1999/3

Y1 - 1999/3

N2 - The rotational states of Oi in natural Ge as determined by phonon spectroscopy are found to be shifted in isotopically enriched Ge:Oi crystals. These shifts are larger than compatible with the line width in natural Ge if only the motion of the quasi-free Ge-O-Ge molecule is considered. Because of the reduced isotope scattering of the phonons in the enriched Ge the position of higher excited states could be determined. This allows to estimate the height of the axial potential barrier by extending to Ge:O the Yamada-Kaneta model for Si:O.

AB - The rotational states of Oi in natural Ge as determined by phonon spectroscopy are found to be shifted in isotopically enriched Ge:Oi crystals. These shifts are larger than compatible with the line width in natural Ge if only the motion of the quasi-free Ge-O-Ge molecule is considered. Because of the reduced isotope scattering of the phonons in the enriched Ge the position of higher excited states could be determined. This allows to estimate the height of the axial potential barrier by extending to Ge:O the Yamada-Kaneta model for Si:O.

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UR - http://www.scopus.com/inward/citedby.url?scp=0344614673&partnerID=8YFLogxK

U2 - 10.1016/S0921-4526(98)01391-X

DO - 10.1016/S0921-4526(98)01391-X

M3 - Conference article

AN - SCOPUS:0344614673

SN - 0921-4526

VL - 263-264

SP - 384

EP - 387

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

T2 - Proceedings of the 1998 9th International Conference on Phonon Scattering in Condensed Matter, PHONONS 98

Y2 - 26 July 1998 through 31 July 1998

ER -

Isotopic shifts of the low-energy excitations of interstitial oxygen in germanium

Abstract

ASJC Scopus subject areas

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