5 papers
Double quantum dots with quenched charging energy in PbTe nanowires
Seth Byard, Maksim Gomanko, Adam Raynolds +4
We investigate double quantum dots defined by electrostatic gating in semiconductor PbTe nanowire devices. We perform transport measurements to obtain charge stability diagrams dis…
Apparent fractional charge signatures in PbTe quantum dots due to capacitively coupled charge trap dynamics
Seth Byard, Maksim Gomanko, Sergey M. Frolov
We report the observation of fractional shifts in the experimental stability diagrams of PbTe nanowire quantum dots. Although this behavior may appear to suggest fractional charge…
Spin and Orbital Spectroscopy in the Absence of Coulomb Blockade in Lead Telluride Nanowire Quantum Dots
M. Gomanko, E. J. de Jong, Y. Jiang +3
We investigate quantum dots in semiconductor PbTe nanowire devices. Due to the accessibility of ambipolar transport in PbTe, quantum dots can be occupied both with electrons and ho…
Second-harmonic current-phase relation in Josephson junctions with ferromagnetic barriers
M. J. A. Stoutimore, A. N. Rossolenko, V. V. Bolginov +7
We report the observation of a current-phase relation dominated by the second Josephson harmonic in superconductor-ferromagnet-superconductor junctions. The exotic current-phase re…
Ballistic quantum transport through Ge/Si core/shell nanowires
D. Kotekar-Patil, B. -M. Nguyen, J. Yoo +2
We study ballistic hole transport through Ge/Si core/shell nanowires at low temperatures. We observe Fabry-Prot interference patterns as well as conductance plateaus at…