ResearchSpace
→
Browsing by Author

Browsing by Author "Asante, JKO"

Now showing items 1-4 of 4

The decoration of vicinal copper polycrystalline surface by Antimony

Author: Ndlovu, GF ; Asante, JKO ; Roos, WD ; Hillie, KT Date: Jul 2011 An Ultra-high Vacuum Variable Temperature Scanning Tunnelling Microscope was used to study the growth mechanism of Antimony on vicinal Cu polycrystalline samples. The STM data after deposition of 0.3 ML Sb at 300°C showed localization of Sb ... Read more
Epitaxial deposition of silver ultrafine nano-clusters on defect-free surfaces of HOPG-derived few-layer graphene in a UHV multi-chamber by in-situ STM, ex-situ XPS and ab initio calculations

Author: Ndlovu, GF ; Roos, WD ; Wang, ZM ; Asante, JKO ; Mashapa, MG ; Jafta, C ; Mwakikunga, Bonex W ; Hillie, KT Date: Mar 2012 The growth of three-dimensional ultra-fine spherical nano-particles of silver on few layers of graphene derived from highly oriented pyrolytic graphite in ultra-high vacuum were characterized using in situ scanning tunneling microscopy (STM) ... Read more
Investigation of broken symmetry of Sb/Cu(111) surface alloys by VT-STM

Author: Ndlovu, GF ; Asante, JKO ; Roos, WD ; Hillie, KT Date: Jul 2011 This work present an in situ Variable Temperature Scanning Tunneling Microscopy (VT-STM) study of the Sb/Cu(111) system studied at various temperatures. The experimental data support a structural model in which Sb atoms displace up to 1/3 of ... Read more
The surface orientation dependence of the pre-exponential factors extracted from the segregation profiles of a Cu(111/110) bi-crystal

Author: Jafta, CJ ; Roos, WD ; Terblans, JJ ; Asante, JKO ; Ozoemena, KI Date: Jul 2011 Previous experimental investigations have only shown, without explanation, that the pre-exponential factor (D0), in the diffusion coefficient of Sb segregating in Cu, is dependent on the surface orientation of a crystal. In this study, the ... Read more

Now showing items 1-4 of 4

Browse

All of ResearchSpace

Quick Links

Legislation and compliance

General Enquiries

Tel: + 27 12 841 2911
Email: callcentre@csir.co.za

Physical Address
Meiring Naudé Road
Brummeria
Pretoria
South Africa

Postal Address
PO Box 395
Pretoria 0001
South Africa

Social Connect

Resources on this site are free to download and reuse according to associated licensing provision. Please read the terms and conditions of usage of each resource.

Browsing by Author "Asante, JKO"

Browsing by Author "Asante, JKO"

Browse

All of ResearchSpace

Quick Links

Legislation and compliance

General Enquiries

Social Connect