Friday 22 May 2015      HS P3 PH02112

Introduction
Walter Pötz - Peter Pölt

Density determination of liquid metals by means of fast resistive pulse-heating and electromagnetic levitation
Alexander Schmon, Institute of Experimental Physics, TU Graz

Thermophysical properties of metals in the liquid phase have become increasingly important as input data for modern numerical simulations. Especially density is a relevant parameter for e.g. casting modelling. Investigations of metals at high temperatures have to deal with dif ... more

Helium Droplets – A Very Clean and Controlled Way to Produce Nanoparticles
Philipp Thaler

Clusters and nanoparticles are an interesting class of materials because their properties can differ from the bulk material as well as from the pure atomic species. Their optical, magnetic and catalytic characteristics can strongly depend on their size and shape as well as on the ... more

-Electrical in-situ characterisation of interface stabilised organic thin-film transistors
Bernd Striedinger, Joanneum Research

In the present contribution we report on the electrical in-situ characterisation of p-type OTFTs in bottom-gate/bottom-contact (coplanar) geometry on highly doped <100> Si-substrates. A 150 nm thick layer of thermal SiO2 with an optional polymer interface passivation layer serves ... more

Mittag

Probing the QCD Phase Diagram with Generalized Quark Susceptibilities
Ana Juricic, University of Graz

Theory of strong interactions, Quantum Chromodynamics (QCD), and the chiral properties of strongly interacting matter are one of the most interesting open issues of modern physics. A distinctive feature of QCD phase diagram is a possible critical end point, which is hard to detec ... more

Measurement of surface tension of liquid metals by means of oscillating drop technique
Kirmanj AZIZ, Institute of Experimental Physics, TU Graz

The oscillating drop technique is an established method for measurement of surface tension. The thermo- and metalphysics group at Graz University of technology uses the oscillating drop technique in combination with an electromagnetic levitation device to measure surface tension ... more

Ab Initio Calculations of Alkali-Alkaline Earth Molecules
Johann Potoschnig, Institute of Experimental Physics, Graz University of Technology
http://portal.tugraz.at/portal/page/portal/TU_Graz/Einrichtungen/Institute/Homepages/i5110/forschung/heliumnanodroplets/forschungsgebiet

In recent years the interest in diatomic molecules consisting of an alkali atom and an alkaline earth atom has been growing due to several proposed applications. Such molecules might be formed in the ultracold temperature regime by the combination of cooled atoms and used in the ... more

Abschlussdiskussion
Walter Pötz - Peter Pölt

- Friday 26 June 2015      HS 05.12 Physikgebaeude, Universitätsplatz 5

Introduction Walter Pötz - Peter Pölt
Walter Pötz - Peter Pölt

Controlling Bose-Einstein Condensates
Georg Jäger

Bose-Einstein Condensates are very interesting physical objects with a wide variety of applications. They behave, so to say, like macroscopic quantum objects, where quantum phenomena, like interference and entanglement can be observed and harnessed within the micrometer scale. A ... more

Mittag
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Tomography of particle plasmon fields using EELS
Anton Hörl

Electron energy loss spectroscopy (EELS) and microscopy allow probing of the evanescent fields of particle plasmons with nanometer resolution. In EELS, electrons with a high kinetic energy pass by or penetrate through a metallic nanoparticle, excite particle plasmons, and lose pa ... more

Simulation of metallic nanoparticles situated on substrates using the boundary element method
Jürgen Waxenegger, University of Graz

Metal nanoparticles sustain local surface plasmon excitations, particle plasmons, which are hybrid modes of a light field coupled to a coherent electron charge oscillation. Understanding the optical response of metal nanoparticles is important to fully exploit their unique proper ... more

Calculating electronic and structural properties of self-assembled monolayers using density functional theory
Iris Hehn

Self-assembled monolayers (SAMs) offer the possibility to modify numerous different surface properties like chemical reactability, wetting behavior or electrical characteristics. Interfaces play a crucial role for the performance of various types of electrical devices. Including ... more

In-situ studies of the correlations between electrochemical processes and magnetic properties
Stefan Topolovec, Institue of Materials Physics, Graz UNiversity of Technology

The combination of magnetism and electrochemistry has attracted considerable attention in the last years. On the one hand, a promising research field was recently opened up with in-situ studying the influence of electrochemical charging processes on the magnetic properties of hig ... more

Modeling “Realistic” Self-Assembled Monolayers on Au(111)
Elisabeth Verwüster, Institute of Solid State Physics, Graz University of Technology, Petersgasse 16, 8010 Graz, Austria

Covering a metal with a self-assembled monolayer (SAM) leads to a work-function modification of the underlying metal substrate. SAMs, especially on gold, offer a wide range of applications, such as corrosion protection, chemical-/biological sensors, or in organic electronics and ... more