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cond-mat.mes-hall2004
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…
cond-mat.mes-hall2003
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…
cond-mat.mes-hall2001
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…