H. Böhn
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View article: Wedge‐shaped layers from porous silicon: the basics of laterally graded interference filters
Wedge‐shaped layers from porous silicon: the basics of laterally graded interference filters Open
The process of making laterally graded interference filters has been reanalyzed. A simple and consistent picture arises if one applies a constant electric field perpendicular to the etch current instead of a constant current. The system is…
View article: Anelastic and Dielectric Relaxation Measurements in the Protonic Conductor Ba<sub>3</sub>(Ca<sub>1.18</sub>Nb<sub>1.82</sub>)O<sub>9-δ</sub>
Anelastic and Dielectric Relaxation Measurements in the Protonic Conductor Ba<sub>3</sub>(Ca<sub>1.18</sub>Nb<sub>1.82</sub>)O<sub>9-δ</sub> Open
In order to study the local proton motion in complex perovskite-type protonic conductors anelastic and dielectric relaxation measurements have been carried out at the compound Ba3(Ca1.18Nb182)09.&.Both techniques show spectra depending on …
View article: Critical magnetic scattering from the Heisenberg ferromagnet EuS
Critical magnetic scattering from the Heisenberg ferromagnet EuS Open
The paramagnetic scattering from the insulating, isotropic ferromagnet EuS is investigated at TC along the [111] direction by means of inelastic neutron scattering. The energy width of the quasielastic scattering is proportional to qz with…