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Structure of the Te/Ge(0 0 1) surface studied by SPA-LEED

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Title: Structure of the Te/Ge(0 0 1) surface studied by SPA-LEED
Authors: Weigand, W.1 weigand@dix.physik.uni-wuerzburg.de, Reuss, F.2, Hansen, L.2, Waag, A.2, Molenkamp, L.W.2, Kumpf, C.1, Sokolowski, M.1, Umbach, E.1
Source: Surface Science. Aug2004, Vol. 562 Issue 1-3, p33-42. 10p.
Subjects: Chalcogens, Chemical elements, Germanium, Morphology
Abstract: The tellurium ad- and de-sorption on the Ge(0 0 1) surface have been studied using high-resolution low energy electron diffraction and reflection high-energy electron diffraction. Upon adsorption of one monolayer of Te at 280 °C a streaky (2 × 1) reconstruction occurs, which can be explained by a missing-row model. Upon annealing the surface transforms to a c(2 × 2)-(2 × 1) mixed reconstruction. A splitting of the superstructure spots was found which indicates an ordered arrangement of strip-like domains on the surface. We address the question of both the atomic and the domain structure of the Te-adlayer prior to desorption and present a model for the entire desorption process. Furthermore, a (1 1 3)-faceting of the (0 0 1) surface which occurs upon Te-adsorption at a higher substrate temperature (380 °C) was investigated. [Copyright &y& Elsevier]
Copyright of Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 13806368
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Structure of the Te/Ge(0 0 1) surface studied by SPA-LEED
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  Data: <searchLink fieldCode="AR" term="%22Weigand%2C+W%2E%22">Weigand, W.</searchLink><relatesTo>1</relatesTo><i> weigand@dix.physik.uni-wuerzburg.de</i><br /><searchLink fieldCode="AR" term="%22Reuss%2C+F%2E%22">Reuss, F.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Hansen%2C+L%2E%22">Hansen, L.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Waag%2C+A%2E%22">Waag, A.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Molenkamp%2C+L%2EW%2E%22">Molenkamp, L.W.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Kumpf%2C+C%2E%22">Kumpf, C.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sokolowski%2C+M%2E%22">Sokolowski, M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Umbach%2C+E%2E%22">Umbach, E.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Surface+Science%22">Surface Science</searchLink>. Aug2004, Vol. 562 Issue 1-3, p33-42. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Chalcogens%22">Chalcogens</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+elements%22">Chemical elements</searchLink><br /><searchLink fieldCode="DE" term="%22Germanium%22">Germanium</searchLink><br /><searchLink fieldCode="DE" term="%22Morphology%22">Morphology</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: The tellurium ad- and de-sorption on the Ge(0 0 1) surface have been studied using high-resolution low energy electron diffraction and reflection high-energy electron diffraction. Upon adsorption of one monolayer of Te at 280 °C a streaky (2 × 1) reconstruction occurs, which can be explained by a missing-row model. Upon annealing the surface transforms to a c(2 × 2)-(2 × 1) mixed reconstruction. A splitting of the superstructure spots was found which indicates an ordered arrangement of strip-like domains on the surface. We address the question of both the atomic and the domain structure of the Te-adlayer prior to desorption and present a model for the entire desorption process. Furthermore, a (1 1 3)-faceting of the (0 0 1) surface which occurs upon Te-adsorption at a higher substrate temperature (380 °C) was investigated. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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