Vibrational properties of Ge- and Sb-adsorbed Si(001) surfaces

Tütüncü, Hüseyin Murat

dc.contributor.authors	Tutuncu, HM; Jenkins, SJ; Srivastava, GP;
dc.date.accessioned	2020-01-20T08:02:03Z
dc.date.available	2020-01-20T08:02:03Z
dc.date.issued	1998
dc.identifier.citation	Tutuncu, HM; Jenkins, SJ; Srivastava, GP; (1998). Vibrational properties of Ge- and Sb-adsorbed Si(001) surfaces. PHYSICAL REVIEW B, 58, 10760-10754
dc.identifier.issn	2469-9950
dc.identifier.uri	https://hdl.handle.net/20.500.12619/32045
dc.identifier.uri	https://doi.org/10.1103/PhysRevB.58.10754
dc.description.abstract	We report on vibrational properties obtained within the adiabatic bond-charge model for (2x1) reconstructed monolayer Ge- and Sb-adsorbed Si(001) surfaces. The phonon spectra of these surfaces are compared in detail with that of the clean Si(001)(2x1) surface presented in a similar recent study. We observe that acoustic-phonon modes on the covered surfaces are mainly localized in the adsorbate layers, while high-energy optical phonon modes are localized in the top few substrate layers. This phenomenon is attributed to the large mass difference between Sb (Ge) and Si atoms. Adsorption of these overlayers is shown to result. in characteristic new peaks in the phonon density of slates, which, together with differences in polarization of certain gap phonon modes, provide a distinct signature for each overlayer system. [S0163-1829(98)02140-7].
dc.language	English
dc.publisher	AMER PHYSICAL SOC
dc.subject	Physics
dc.title	Vibrational properties of Ge- and Sb-adsorbed Si(001) surfaces
dc.type	Article
dc.identifier.volume	58
dc.identifier.startpage	10754
dc.identifier.endpage	10760
dc.contributor.department	Sakarya Üniversitesi/Fen-Edebiyat Fakültesi/Fizik Bölümü
dc.contributor.saüauthor	Tütüncü, Hüseyin Murat
dc.relation.journal	PHYSICAL REVIEW B
dc.identifier.wos	WOS:000076716500100
dc.identifier.eissn	2469-9969
dc.contributor.author	Tütüncü, Hüseyin Murat