UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

STM and DFT study on formation and characterization of Ba-incorporated phases on a Ge(001) surface

Koczorowski, W; Puchalska, A; Grzela, T; Jurczyszyn, L; Schofield, SR; Czajka, R; Curson, NJ; (2016) STM and DFT study on formation and characterization of Ba-incorporated phases on a Ge(001) surface. Physical Review B - Condensed Matter and Materials Physics , 93 (19) , Article 195304. 10.1103/PhysRevB.93.195304. Green open access

[img]
Preview
Text
Koczorowski et al STM and DFT Study on Formation and Characterization of Ba Incorporated phases on a Ge(001) surface VoR.pdf

Download (2MB) | Preview

Abstract

We characterize the incorporation of Ba adatoms into the Ge(001) surface, resulting in the formation of one-dimensional structures with an internal 2×3 periodicity, after the deposition of Ba atoms at 970 K or at room temperature followed by a 770 K anneal. Scanning tunneling microscopy (STM) data were compared with theoretically simulated STM images generated by density functional theory electronic structure calculations. Excellent agreement between experiment and simulation was found when using an adopted structural model that assumes partial removal of the surface Ge dimers in the [1–10] surface direction and subsequent addition of a single Ba atom to the substrate second layer. Structural assignments for a number of defects observed within regions of the 2×3 reconstruction were also obtained.

Type: Article
Title: STM and DFT study on formation and characterization of Ba-incorporated phases on a Ge(001) surface
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevB.93.195304
Publisher version: http://dx.doi.org/10.1103/PhysRevB.93.195304
Language: English
Additional information: Copyright © 2016 American Physical Society. The published version of record [Koczorowski, W; Puchalska, A; Grzela, T; Jurczyszyn, L; Schofield, SR; Czajka, R; Curson, NJ; (2016) STM and DFT study on formation and characterization of Ba-incorporated phases on a Ge(001) surface. Physical Review B - Condensed Matter and Materials Physics , 93 (19) , Article 195304. 10.1103/PhysRevB.93.195304] is available at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.93.195304
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: http://discovery.ucl.ac.uk/id/eprint/1496992
Downloads since deposit
98Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item