472 citations · 3.7k across the 97 of their papers we have counts for
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Contact-induced charge contributions to non-local spin transport measurements in Co/MgO/graphene devices
F. Volmer, M. Drögeler, T. Pohlmann +3
Recently, it has been shown that oxide barriers in graphene-based non-local spin-valve structures can be the bottleneck for spin transport. The barriers may cause spin dephasing du…
Suppression of contact-induced spin dephasing in graphene/MgO/Co spin-valve devices by successive oxygen treatments
F. Volmer, M. Drögeler, E. Maynicke +5
By successive oxygen treatments of graphene non-local spin-valve devices we achieve a gradual increase of the contact resistance area products () of Co/MgO spin injection and…
Nanosecond spin lifetimes in single- and few-layer graphene-hBN heterostructures at room temperature
Marc Drögeler, Frank Volmer, Maik Wolter +6
We present a new fabrication method of graphene spin-valve devices which yields enhanced spin and charge transport properties by improving both the electrode-to-graphene and graphe…
Raman spectroscopy as probe of nanometer-scale strain variations in graphene
Christoph Neumann, Sven Reichardt, Pedro Venezuela +9
Confocal Raman spectroscopy is a versatile, non-invasive investigation tool and a major workhorse for graphene characterization. Here we show that the experimentally observed Raman…
Limitations to Carrier Mobility and Phase-Coherent Transport in Bilayer Graphene
S. Engels, B. Terrés, A. Epping +5
We present transport measurements on high-mobility bilayer graphene fully encapsulated in hexagonal boron nitride. We show two terminal quantum Hall effect measurements which exhib…