Proximity effects in CeCu6/Nb bilayers

Quantum Matter and Optic

Depairing currents in superconductor ferromagnet Nb/CuNi trilayers close to Tc

Quantum Matter and Optic

Mitigating target degradation in sputtering manganite thin films

In this paper, we address the issue of aging of oxide sputtering targets, using the example of La0.7Ca0.3MnO3 (LCMO), a material which is quite sensitive to the amount of oxygen. After prolonged use we find that the morphology of the films becomes poor: holes appear, the size of the steps between terraces becomes larger, the roughness increases, and electrical conductance in the metallic state at temperatures below the metal-insulator transition becomes smaller. We have performed experiments on reactive sputtering with water vapor in order to reverse their degradation. We discuss the growth and properties of films of LCMO on flat SrTiO3 substrates before and after the target treatment. We study both the morphological and structural changes in these films as well as the transport properties. The results indicate that a correct concentration of oxygen in the targets is important, and that a deficiency can be compensated by the water treatment, thus increasing the usable life time of targets.Quantum Matter and Optic

Dynamic vortex ordering in thin a-Nb70Ge30 films

Quantum Matter and Optic

Direct-write printing of Josephson junctions in a scanning electron microscope

Quantum Matter and Optic

Asymmetric weak-pinning superconducting channels: Vortex ratchets

Quantum Matter and Optic

A compact multipurpose nanomanipulator for use inside a scanning electron microscope

Quantum Matter and Optic

Response to "Comment on 'MEMS-based high speed scanning probe microscopy"

Quantum Matter and Optic

Charge carrier localization due to ferromagnetic clusters in concentrated AuFe alloys

Quantum Matter and Optic

MEMS-based high speed scanning probe microscopy

Quantum Matter and Optic