120 citations · 212 across the 3 of their papers we have counts for
5 papers
Bistability of vortex core dynamics in a single perpendicularly magnetized nano-disk
Grégoire De Loubens, A. Riegler, B. Pigeau +10
Microwave spectroscopy of individual vortex-state magnetic nano-disks in a perpendicular bias magnetic field, , is performed using a magnetic resonance force microscope (MRFM).…
Lithographic engineering of anisotropies in (Ga,Mn)As
S. Hümpfner, M. Sawicki, K. Pappert +6
The focus of studies on ferromagnetic semiconductors is moving from material issues to device functionalities based on novel phenomena often associated with the anisotropy properti…
Magnetization-Switched Metal-Insulator Transition in a (Ga,Mn)As Tunnel Device
K. Pappert, M. J. Schmidt, S. Hümpfner +6
We observe the occurrence of an Efros-Shklovskii gap in (Ga,Mn)As based tunnel junctions. The occurrence of the gap is controlled by the extent of the hole wave-function on the Mn…
Temperature Dependent Magnetic Anisotropy in (Ga,Mn)As Layers
M. Sawicki, F. Matsukura, A. Idziaszek +7
It is demonstrated by SQUID measurements that (Ga,Mn)As films can exhibit perpendicular easy axis at low temperatures, even under compressive strain, provided that the hole concent…
Very large magnetoresistance in lateral ferromagnetic (Ga,Mn)As wires with nanoconstrictions
C. Ruester, T. Borzenko, C. Gould +7
We have fabricated (Ga,Mn)As nanostructures in which domain walls can be pinned by sub-10 nm constrictions. Controlled by shape anisotropy, we can switch the regions on either side…