Ndlovu, GFAsante, JKORoos, WDHillie, KT2012-08-152012-08-152011-07Ndlovu, GF, Asante, JKO, Roos, WD and Hillie, KT. Investigation of broken symmetry of Sb/Cu(111) surface alloys by VT-STM. 56th Annual Conference of the South African Institute of Physics (SAIP2011), St George Hotel, Pretoria, 12-15 July 2011, pp 243-248978-1-86888-688-3http://www.saip.org.za/images/stories/documents/SAIP_Proceedings/SAIP2011_Proceedings.djvuhttp://hdl.handle.net/10204/605056th Annual Conference of the South African Institute of Physics (SAIP2011), St George Hotel, Pretoria, 12-15 July 2011This 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 the first layer of Cu atoms and incorporate them into the first Cu layer. In contrast to the clean Cu(111) substrate the surface of the surface alloy is corrugated due to the outward relaxation of the alloy atoms thus breaking the surface structural symmetry. The study report for the first time to our knowledge the observation of the Cu(111)(2 x 2) -Sb superstructure obtained at elevated temperatures.enVT-STMCuSb systemsConference PresentationNdlovu, G., Asante, J., Roos, W., & Hillie, K. (2011). Investigation of broken symmetry of Sb/Cu(111) surface alloys by VT-STM. SAIP. http://hdl.handle.net/10204/6050Ndlovu, GF, JKO Asante, WD Roos, and KT Hillie. "Investigation of broken symmetry of Sb/Cu(111) surface alloys by VT-STM." (2011): http://hdl.handle.net/10204/6050Ndlovu G, Asante J, Roos W, Hillie K, Investigation of broken symmetry of Sb/Cu(111) surface alloys by VT-STM; SAIP; 2011. http://hdl.handle.net/10204/6050 .TY - Conference Presentation AU - Ndlovu, GF AU - Asante, JKO AU - Roos, WD AU - Hillie, KT AB - 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 the first layer of Cu atoms and incorporate them into the first Cu layer. In contrast to the clean Cu(111) substrate the surface of the surface alloy is corrugated due to the outward relaxation of the alloy atoms thus breaking the surface structural symmetry. The study report for the first time to our knowledge the observation of the Cu(111)(2 x 2) -Sb superstructure obtained at elevated temperatures. DA - 2011-07 DB - ResearchSpace DP - CSIR KW - VT-STM KW - CuSb systems LK - https://researchspace.csir.co.za PY - 2011 SM - 978-1-86888-688-3 T1 - Investigation of broken symmetry of Sb/Cu(111) surface alloys by VT-STM TI - Investigation of broken symmetry of Sb/Cu(111) surface alloys by VT-STM UR - http://hdl.handle.net/10204/6050 ER -