GaSb(001) surface reconstructions measured at the growth front by furface X-ray diffraction

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F08%3A00319880" target="_blank" >RIV/68378271:_____/08:00319880 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

GaSb(001) surface reconstructions measured at the growth front by furface X-ray diffraction

Original language description

Surface x-ray diffraction was employed, in situ, to measure the GaSb(001)-(1 x 5) and (1 x 3) surface phases under technologically relevant growth conditions. We measured a large set of fractional-order in-plane diffraction peaks arising from the superstructure of the surface reconstruction. From the data we calculated two-dimensional (2D) Patterson functions. For the (1 x 3) phase we obtained good agreement between our data and the ?(4 x 3) model proposed in recent experimental and theoretical work. Our measurements on the Sb-rich (1 x 5) phase provide evidence that the structure under growth conditions is, in fact, different from that of the models previously suggested on the basis of scanning tunneling microscopy (STM). We discuss reasons for this discrepancy as well as the identified structural elements for these reconstructions, which include surface relaxations and subsurface rearrangement.

Czech name

Měření SXRD na GaSb(001) rekonstrukce

Czech description

Povrchově citlivá rtg. difrakce byla se použita pro in situ meření GaSb(001)-(1 x 5) a (1 x 3) fází povrchů. Fáze (1x3) se shoduje s modelem beta-(4x3). Dále, v práci diskutujeme důvody nesouhlasu modelových výpočtů a měření pro model (1x5).

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Electronic Materials

ISSN

0361-5235

e-ISSN

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Volume of the periodical

37

Issue of the periodical within the volume

12

Country of publishing house

US - UNITED STATES

Number of pages

6

Pages from-to

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UT code for WoS article

000260377400008

EID of the result in the Scopus database

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