5 papers
Impact of hydrogen incorporation on electronic and magnetic structure of X2CrNi18-9 stainless steel
Torben Tappe, Louis Becker, Gaurav Kanu +7
Hydrogen absorption significantly alters the mechanical properties of steel. However, absorbed hydrogen also influences its electronic and magneto-structural properties, helping to…
Influence of Charge Density Waves on the Hall coefficient in NiTi
Adrian Braun, Henrik Dick, Timon Sieweke +4
We present a mean-field charge density wave theory for NiTi using density functional theory bandstructure as a starting point. We calculate the Hall coefficient as a function of te…
NiTi Single Crystal Growth by Micro-Pulling-Down Method: Experimental Setup and Material Characterization
Timon Sieweke, Chris Luther, Martin Wortmann +14
Nickel-titanium that has an austenite to martensite phase transition has been studied extensively in the past as a shape memory alloy, but a lot remains to be learned from such pha…
Surface Oxidation of SnTe Analyzed by Self-Consistent Fitting of all Emission Peaks in its X-ray Photoelectron Spectrum
Martin Wortmann, Beatrice Bednarz, Negin Beryani Nezafat +11
X-ray photoelectron spectroscopy (XPS) is among the most widely used methods for surface characterization. Currently, the analysis of XPS data is almost exclusively based on the ma…
The thermoelectric conversion efficiency problem: Insights from the electron gas thermodynamics close to a phase transition
I. Khomchenko, A. Ryzhov, F. Maculewicz +10
The bottleneck in modern thermoelectric power generation and cooling is the low energy conversion efficiency of thermoelectric materials. The detrimental effects of lattice phonons…