4 papers
Realization of an N-shaped IVC of nanoscale metallic junctions using the antiferromagnetic transition
Yu. G. Naidyuk, K. Gloos, I. K. Yanson
We have observed at low temperatures (<8K) hysteretic I(V) characteristics for sub-mkm (~200nm) metallic break-junctions based on the heavy-fermion compound UPd2Al3. Degrading the…
An improved 2.5 GHz electron pump: single-electron transport through shallow-etched point contacts driven by surface acoustic waves
P. Utko, K. Gloos, J. B. Hansen +1
We present an experimental study of a 2.5 GHz electron pump based on the quantized acoustoelectric current driven by surface acoustic waves (SAWs) through a shallow-etched point co…
Discrete saturation thickness and anomalous potential height of native ultrathin aluminum oxide tunnel barriers
K. Gloos, P. J. Koppinen, J. P. Pekola
We have investigated planar metal - insulator - metal tunnel junctions with aluminum oxide as dielectricum. These oxide barriers were grown on an aluminum electrode in pure oxygen…
Is CeNiSn the Kondo semiconductor?: break-junction data
Yu. G. Naidyuk, K. Gloos, T. Takabatake
IVC characteristics as well as their derivatives were recorded for contacts on the base of CeNiSn, known as Kondo semiconductor, in the metallic and the tunnelling regime at temper…