173 citations · 409 across the 11 of their papers we have counts for
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Spin Symmetry of the Bilayer Graphene Groundstate
Frank Freitag, Markus Weiss, Romain Maurand +2
We show nonlinear transport experiments on clean, suspended bilayer graphene that reveal a gap in the density of states. Looking at the evolution of the gap in magnetic fields of d…
Homogeneity of Bilayer Graphene
Frank Freitag, Markus Weiss, Romain Maurand +2
We present non-linear transport measurements on suspended, current annealed bilayer graphene devices. Using a multi-terminal geometry we demonstrate that devices tend to be inhomog…
Conductance fluctuations in graphene devices with superconducting contacts in different charge density regimes
F. Freitag, J. Trbovic, C. Schönenberger
Conductions fluctuations (CF) are studied in single layer graphene devices with superconducting source and drain contacts made from aluminium. The CF are found to be enhanced by su…
Spontaneously gapped ground state in suspended bilayer graphene
F. Freitag, J. Trbovic, M. Weiss +1
Bilayer graphene bears an eight-fold degeneracy due to spin, valley and layer symmetry, allowing for a wealth of broken symmetry states induced by magnetic or electric fields, by s…
Permalloy-based carbon nanotube spin-valve
H. Aurich, A. Baumgartner, F. Freitag +3
In this Letter we demonstrate that Permalloy (Py), a widely used Ni/Fe alloy, forms contacts to carbon nanotubes (CNTs) that meet the requirements for the injection and detection o…
Superconductivity enhanced conductance fluctuations in few layer graphene nanoribbons
J. Trbovic, N. Minder, F. Freitag +1
We investigate the mesoscopic disorder induced rms conductance variance in a few layer graphene nanoribbon (FGNR) contacted by two superconducting (S) Ti/Al contacts. By sweep…