54 citations · 155 across the 7 of their papers we have counts for
7 papers
Vortex glass-liquid transition and activated flux motion in an epitaxial, super-conducting NdFeAs(O,F) thin film
J. Hänisch, K. Iida, T. Ohmura +6
An epitaxial NdFeAs(O,F) thin film of 90 nm thickness grown by molecular beam epitaxy on MgO single crystal with Tc = 44.2 K has been investigated regarding a possible vortex glass…
Nucleation and growth of hierarchical martensite in epitaxial shape memory films
Robert Niemann, Anja Backen, Sandra Kauffmann-Weiss +7
Shape memory alloys often show a complex hierarchical morphology in the martensitic state. To understand the formation of this twin-within-twins microstructure, we examine epitaxia…
Growth, microstructure and thermal transformation behaviour of epitaxial Ni-Ti films
Sandra Kauffmann-Weiss, Sandra Hahn, Carmen Weigelt +3
Epitaxial films have the potential to be used as model systems for fundamental investigations on the martensitic transformation in binary NiTi. In this paper, we discuss growth of…
Increased magnetocrystalline anisotropy in epitaxial Fe-Co-C thin films with spontaneous strain
Ludwig Reichel, George Giannopoulos, Sandra Kauffmann-Weiss +8
Rare earth free alloys are in focus of permanent magnet research since the accessibility of the elements needed for nowadays conventional magnets is limited. Tetragonally strained…
Mesoscopic twin boundaries in epitaxial Ni-Mn-Ga films
Anja Backen, Sandra Kauffmann-Weiss, Christian Behler +6
Twin boundaries play an essential role in the use of magnetic shape memory alloy Ni-Mn-Ga as active material. Only if twin boundaries can be moved by an external magnetic field, hi…
Enhancing magnetocrystalline anisotropy of the Fe70Pd30 magnetic shape memory alloy by adding Cu
Sandra Kauffmann-Weiss, Sven Hamann, Markus Ernst Gruner +3
Strained epitaxial growth provides the opportunity to understand the dependence of intrinsic and extrinsic properties of functional materials at frozen intermediate stages of a pha…
Magnetic nanostructures by adaptive twinning in strained epitaxial films
Sandra Kauffmann-Weiss, Markus E. Gruner, Anja Backen +3
We exploit the intrinsic structural instability of the Fe70Pd30 magnetic shape memory alloy to obtain functional epitaxial films exhibiting a self-organized nanostructure. We demon…