IAP logo

Differences

This shows you the differences between two versions of the page.

surface:group:setvin:index [2018-06-13 11:00]
Martin Setvin
surface:group:setvin:index [2018-11-29 14:18] (current)
Martin Setvin
Line 12: Line 12:
{{ :surface:group:setvin:Qplus.png?230|q-Plus LT STM/AFM}} {{ :surface:group:setvin:Qplus.png?230|q-Plus LT STM/AFM}}
-Download CV: {{:surface:group:setvin:CV_Setvin_2018_06.pdf|}}+Download CV: {{:surface:group:setvin:CV_Setvin_2018_11.pdf|}}
  * June 2018: Finished habilitation at the TU Wien (Experimental Physics)   * June 2018: Finished habilitation at the TU Wien (Experimental Physics)
  * 2015 - //Universitätsassisstent//, TU Wien   * 2015 - //Universitätsassisstent//, TU Wien
Line 24: Line 24:
{{ :surface:group:setvin:Sensor.jpg?180|q-Plus sensor}} {{ :surface:group:setvin:Sensor.jpg?180|q-Plus sensor}}
-During the first couple of years in Vienna I was mostly focusing on the surface science of TiO2 anatase and rutile.+noncontact Atomic force microscopy (nc-AFM): Recent developments in this experimental technique offer intriguing opportunities in materials research. nc-AFM offers for example molecular and submolecular resolution, enhanced capabilities of chemical identification, or measurement and control of the charge state of species adsorbed at surfaces. These capabilities offer a new angle of view on complex materials, which were often difficult to study by other experimental methods. My main aim is developing methodology for understanding the surfaces of binary and ternary oxides, and pointing out the opportunities offered by the nc-AFM technique. The main directions are:
-In 2015 the group has purchased a combined STM/AFM machine in the q-Plus configuration (funded by the FWF Wittgenstein Preis Z-250 of Ulrike Diebold). This technique has proven very successful in various fields. The main focus of my research is exploring the possibilities offered by this technique on oxide surfaces and other wide-band-gap materials. The research has several directions: +* TiO2 anatase and rutile - these are well-understood oxides and serve as a substrate for testing the capabilities and limitations of the q-Plus technique.
- +
-* TiO2 anatase and rutile - these are well-understood oxides and serve as a suitable substrate for testing the capabilities and limitations of the q-Plus technique.+
* Cubic perovskites KTaO3 (001) and SrTiO3 (001) - The surface science of ternary oxides is relatively poorly understood compared to binary oxides. We have developed a procedure for preparing nice (1x1) bulk-terminated surfaces of these materials. Such surfaces offer an interesting playground for investigating the material stability, surface chemistry, electronic structure, incipient ferroelectricity, etc. * Cubic perovskites KTaO3 (001) and SrTiO3 (001) - The surface science of ternary oxides is relatively poorly understood compared to binary oxides. We have developed a procedure for preparing nice (1x1) bulk-terminated surfaces of these materials. Such surfaces offer an interesting playground for investigating the material stability, surface chemistry, electronic structure, incipient ferroelectricity, etc.
-* Scintillating materials (Eu-doped alkali halides)+* Scintillating materials (Eu-doped alkali halides) - scintillation of these materials is closely related to defect chemistry of the Europium scintillation centers. nc-AFM allows for understanding the structure and properties of these defects.  
 + 
 +* besides these topics, I closely collaborate with other group members on many binary oxides (In2O3, Fe3O4, Fe2O3, Ca2Ru3O7, etc.) 
-My little research subgroup typically consists of 2-3 students working on my topics, and I closely collaborate with several doctoral students and postdocs from the Surface Physics group, focusing on materials like Fe3O4, Fe2O3, In2O3 and Ca3Ru2O7. 
===== Selected Recent Publications ===== ===== Selected Recent Publications =====
surface/group/setvin/index.1528880434.txt.gz · Last modified: 2018-06-13 11:00 by Martin Setvin