A5072398653- Rare-earth and actinide compounds
- Microstructure and mechanical properties
- Aluminum Alloys Composites Properties
- Magnetic Properties of Alloys
- High Entropy Alloys Studies
- Intermetallics and Advanced Alloy Properties
- Iron-based superconductors research
- Physics of Superconductivity and Magnetism
- Aluminum Alloy Microstructure Properties
- High-Temperature Coating Behaviors
- Microstructure and Mechanical Properties of Steels
- Superconductivity in MgB2 and Alloys
- Magnetic and transport properties of perovskites and related materials
- Additive Manufacturing Materials and Processes
- Magnetic properties of thin films
- Boron and Carbon Nanomaterials Research
- Metallurgical and Alloy Processes
- Shape Memory Alloy Transformations
- Metallic Glasses and Amorphous Alloys
- Magnetic Properties and Applications
- Metal and Thin Film Mechanics
- Copper Interconnects and Reliability
- Molecular spectroscopy and chirality
- Advanced materials and composites
- Advanced NMR Techniques and Applications
Leibniz Institute for Solid State and Materials Research
2016-2025
TU Bergakademie Freiberg
2016-2025
Bruker (Switzerland)
2012-2021
TU Dresden
1999-2016
Technical University of Munich
2004-2010
Center for Integrated Protein Science Munich
2008
Helmholtz-Zentrum Dresden-Rossendorf
2006
Leibniz Association
1998-2004
Leibniz Institute for Neurobiology
1997-2003
Abstract Iron-based shape memory alloys are promising candidates for large-scale structural applications due to their cost efficiency and the possibility of using conventional processing routes from steel industry. However, recently developed alloy systems like Fe–Mn–Al–Ni suffer low recoverability if grains do not completely cover sample cross-section. To overcome this issue, here we show that small amounts titanium added significantly enhance abnormal grain growth a considerable refinement...
The measurement of residual dipolar couplings (RDCs), meanwhile a standard method for obtaining structural information in biomolecular NMR, requires partial alignment the sample. Special demands on media so far limit applicability this approach to small molecules organic solvents. Major limitations are free scalability and suppression signals medium allow effective low-concentration samples. Here, we present stretched poly(dimethylsiloxane) (PDMS) cross-linked by β-rays as an with no visible...
Strongly enhanced GMR on flexible substrates is reported for (Co_1 nm/Cu_1 nm)N multilayers deposited plastics (P) by introducing a photoresist (PR) buffer layer. values of Co/Cu buffered are even larger than those thermally oxidized Si (Si) due to an increased antiferromagnetic coupling fraction. The effect can be easily tuned mechanically substrate stretching.
We determined the entropy of high alloys by investigating single-crystalline nickel and five alloys: two fcc-alloys, bcc-alloys one hcp-alloy. Since configurational these single-phase differs from using a base element, it is important to quantify entropy. Using differential scanning calorimetry, cp-measurements are carried out −170 °C materials’ solidus temperatures TS. From experiments, we thermal compared for each studied alloys. applied rule mixture predict molar heat capacities at room...
Partial alignment of molecules in polar organic solvents for the measurement residual dipolar couplings (RDCs) high-resolution NMR spectroscopy can be achieved by stretched poly(vinyl acetate) gels. The method opens door RDC-derived structural information (e.g. from DCH couplings, see picture) to new classes closing existing gap between apolar and aqueous solutions. Supporting this article is available on WWW under http://www.wiley-vch.de/contents/jc_2002/2005/z461241_s.pdf or author. Please...
We report upper critical field Bc2(T) data for disordered (arsenic-deficient) LaO0.9F0.1FeAs1-delta in a wide temperature and magnetic range up to 47 T. Because of the large linear slope Bc2 approximately -5.4 -6.6 T/K near Tc 28.5 K, T dependence in-plane shows flattening 23 K above 30 which points Pauli-limited behavior with Bc2(0) 63-68 Our results are discussed terms disorder effects within [corrected] unconventional superconducting pairings.
Superconducting LaFeAsO1-xFx thin films were grown on single crystalline LaAlO3 substrates with critical temperatures (onset) up to 28 K. Resistive measurements in high magnetic fields 40 T reveal a paramagnetically limited upper field mu{0}H{c2}(0) around 77 and remarkable steep slope of -6.2 K-1 near T{c}. From transport we observed weak-link behavior low evidence for broad reversible regime.
We report upper critical field Bc2(T) data for LaO0.9F0.1FeAs1- δ in a wide temperature and range up to 60 T. The large slope of Bc2≈- 5.4 -6.6 T K-1 near an improved Tc≈28.5 K the in-plane contrasts with flattening starting 23 above 30 we regard as onset Pauli-limited behaviour (PLB) Bc2(0)≈63–68 interpret similar hitherto unexplained curves reported at least three other disordered closely related systems, Co-doped BaFe2As2, (Ba,K) Fe2As2 NdO0.7F0.3FeAs (all single crystals), applied fields...
Having succeeded in the fabrication of epitaxial superconducting LaFeAsO(1-x)F(x) thin films we performed an extensive study electrical transport properties. In face multiband superconductivity can demonstrate that anisotropic Ginzburg-Landau scaling angular dependent critical current densities be adopted, although being originally developed for single band superconductors. contrast with superconductors mass anisotropy is temperature dependent. A very steep increase upper field and...