Advanced Oxide and Nitride Heterostructures
Oxides and nitrides show a rich varity of electronic and structural properties, which are of interest both for fundamental studies as well as for applications. The main aim of our research is the preparation of advanced oxide and nitride heterostructures with different functionalities. Pulsed laser deposition is used as a flexible method for thin oxide film growth. Part of the work is devoted to the development of advanced buffer layer architectures for YBCO coated conductors including the preparation of textured templates using ion-beam assisted deposition as well as the growth of diffusion barriers for RABiTS based conductors. The growth of atomically flat oxide superlattices on single crystalline substrates is another focus of our present work. The preparation of such oxide structures will allow to study for example the influence of epitaxial strain on different properties, but also the creation of materials with new or advanced functionalities.
Recent Working Areas
- Ion-beam assisted deposition
- Buffer layer development for coated conductors
- Buffer layers on surface oxidized Ni-tapes
- Oxide superlattices
- Influence of strain on the superconducting properties of cuprates
Selected publications
Hühne, R., Okai, D., Dörr, K., Trommler, S., Herklotz, A., Holzapfel, B., Schultz, L.
Dynamic investigations on the influence of epitaxial strain on the superconducting transition in YBa2Cu3O7-x
Supercond. Sci. Technol. 21 (2008) 075020
Hühne, R., Subramanya Sarma, V., Okai, D., Thersleff, T., Schultz, L., Holzapfel, B.
Preparation of coated conductor architectures on Ni composite tapes
Supercond. Sci. Technol. 20 (2007) 709
Eickemeyer, J., Selbmann, D., Hühne, R., Wendrock, H., Hänisch, J., Güth, A., Schultz, L., Holzapfel, B.
Elongated grains in textured substrate tapes and their effect on transport currents in superconductor layers
Appl. Phys. Lett. 90 (2007) 012510
Hühne, R., Selbmann, D., Eickemeyer, J., Hänisch, J., Holzapfel, B.
Preparation of buffer layer architectures for YBa2Cu3O7-x coated conductors based on surface oxidized Ni tapes
Supercond. Sci. Technol. 19 (2006) 169-174
Hühne, R., Fähler, S., Holzapfel, B.
Thin biaxially textured TiN films on amorphous substrates prepared by ion-beam assisted pulsed laser deposition
Appl. Phys. Lett. 85 (2004) 2744-2746
Hühne, R., Fähler, S., Holzapfel, B., Oertel, C.-G., Schultz, L., Skrotzki, W.
Mechanism of texture formation in MgO buffer layers using ion-beam assisted laser deposition
Physica C 372-376 (2002) 821-823
Hühne, R., Beyer, Ch., Holzapfel, B., Oertel, C.-G., Schultz, L., Skrotzki, W.
Formation and destruction of cube texture in MgO films using ion-beam assisted pulsed laser deposition
J. Appl. Phys. 90 (2001) 1035-1039