Zusammenfassungen

For modern neutron scattering facilities, effective generation of neutrons and their transmittance to smallvolume samples are very important. Particularly, in neutron macro-molecular crystallography, the samplesare very small, sometimes between 0.01 mm3 and 1 mm3 [1, 2]. [...]

The availability of pressure devices adapted tothe experimental demands (intended pressure,probing method, instrumental environment, etc.)is the fundamental requirement for the study ofhigh-pressure effects on any material property.Our work presents the development of highpressure cells for neutron scattering onpolycrystalline and single-crystalline samples atlow temperatures and with applied magneticfields.In the most common type of device used for high-pressure neutron experiments, the clamp cell[1], the pressure is applied ex situ, allowing its independent and versatile use in various setups.Our clamp cell design has been specifically developed for neutron scattering experiments at lowtemperatures in the closed-cycle cryostats on the instruments DNS (diffuse scattering neutronspectrometer), MIRA (cold three axes spectrometer), and POLI (polarized hot neutrondiffractometer) at the Heinz Maier-Leibnitz Zentrum (MLZ) in Garching, Germany [2]. Thecompact monobloc cell is available in two variants, a CuBe alloy and a NiCrAl “Russian Alloy”one, working up to about 1.1 GPa and 1.5 GPa, respectively. [...]

Proximity effects in superconductor(S)/ferromagnet(F) heterostructures with perpendicular magnetic anisotropy can manifest in various forms such as domain-wall-superconductivity [1] and the generation of long-ranged spin-triplet Cooper pairs [2]. Understanding the origin of such phenomena is the key for an application in fluxonic devices and in spintronics, respectively [3, 4]. [...]

Proximity effects in superconductor/ferromagnet thin film heterostructures are ahighly topical issue due to their potential application in superconducting spin valvesor fluxonic devices [1, 2]. Physical properties can be controlled by an appliedmagnetic field and emerge for example as stray-field generated domainsuperconductivityor spin-triplet correlations. [...]

We investigated parameters that affect self-assembly of magnetic dumbbellnanoparticles (DBNPs) in solution. The dumbbells consist of epitaxially grownmagnetic Fe3O4 nanoparticles on the surface of spherical Au nanoparticles. [...]

Chiral anomaly and anomalous Hall effect in Hexagonal-Mn3+δGeTopological quantum materials have attracted enormous attention since their discovery due to the observedanomalous transport properties, which originate from the non-zero Berry curvature. Mn3+δGe has gainedspecial attention because of its large anomalous transport effects that persist starting from Néel temperature(365 K) down to 2 K [1] [...]

Research and Teaching Oxide MBE System at JCNS-2 Forschungszentrum JülichThe Jülich Centre for Neutron Science develops and uses scattering methods for research into structural andmagnetic order of functional materials. The Oxide Molecular Beam Epitaxy (OMBE) laboratory at JCNS-2provides students and JCNS scientists with a powerful platform to study and realize the growth of thin filmmagnetic materials. [...]

Close to a planar surface, lamellar structures are imposed upon otherwise bulk bicontinuous microemulsions. Thermally induced membrane undulations are modified by the presence of the rigid interface. [...]

The EMPIrE irradiation experiment, taking place in ATR in 2017, is an important step in the comprehension of fabrication and irradiation behavior of dispersion and monolithic UMo fuel. In the part concerning monolithic fuel, focus lies on verification of the fabrication techniques for the Zr TUM PVD coating and the cladding application using the C2TWP process of AREVA NP.The developments with inert material showed that both processes, advanced PVD and C2TWP, conveniently allow fabricating monolithic plates. [...]

In the framework of the joint international endeavors to support the non-proliferation efforts by minimizing the use of highly enriched uranium, a research reactor fuel based on uranium-molybdenum (UMo) alloys is being developed by the HERACLES group in close collaboration with US DOE and partners from all over the world. HERACLES is composed of AREVA-NP (former CERCA), CEA, ILL, SCK•CEN and TUM. [...]