Experimental measurements of multiple stable trapped domain wall states induced in nanofabricated elements
نویسندگان
چکیده
The presence of a domain wall trapped by a sub-micron notch is probed in two ways: through electronic transport measurements and by Magnetic Force Microscopy (MFM). We observe complex magnetic features which are consistent with numerical simulations predicting the existence of multiple magnetic configurations stabilized by the notch structure.
منابع مشابه
Generation of Nonclassical States of the Radiation Field in the System of a Single Trapped Atom in a Cavity within the First Order of the Lamb-Dicke Approximation
In this paper, we propose a theoretical scheme for the generation of non-classical states of the cavity field in a system of a single trapped atom via controlling the Lamb-Dicke parameter. By exploiting the super-operator method, we obtain an analytical expression for the density operator of the system by which we examine the dynamical behaviors of the atomic population inversion, the phase-spa...
متن کاملPropagation dynamics of individual domain walls in Ga1−xMnxAs microdevices
We investigated the transport dynamics of individual magnetic domain walls by employing electrical measurements in multiterminal Ga1−xMnxAs microdevices. Domain wall propagation velocities were deduced from time-of-flight planar Hall measurements between multiple electrical probes of our samples. Domain wall motion induced by both magnetic field and electric currents was systematically investig...
متن کاملUniversal electromotive force induced by domain wall motion.
The electromotive force induced by a moving magnetic domain wall in a nanostrip has been calculated theoretically and detected experimentally. It is found that the emf depends only on the domain wall transformation frequency through a universal Josephson type relation, which is closely related to the topological nature of the domain wall. Our experimental measurements confirm the theoretical pr...
متن کاملMultiple native-like conformations trapped via self-association-induced hydrophobic collapse of the 33-residue beta-sheet domain from platelet factor 4.
Native platelet factor 4 (PF4) (70 residues) has a hydrophobic three-stranded anti-parallel beta-sheet domain on to which is folded an amphipathic C-terminal alpha-helix and an aperiodic N-terminal domain. The 33-amino acid beta-sheet domain from PF4 (residues 23-55) has been synthesized and studied by c.d. and n.m.r. At 10 degrees C and low concentration, peptide 23-55 appears to exist in aque...
متن کاملNanofabricated Racks of Aligned and Anchored DNA Substrates for Single-Molecule Imaging
Single-molecule studies of biological macromolecules can benefit from new experimental platforms that facilitate experimental design and data acquisition. Here we develop new strategies to construct curtains of DNA in which the molecules are aligned with respect to one another and maintained in an extended configuration by anchoring both ends of the DNA to the surface of a microfluidic sample c...
متن کامل