Quantum Lifetime Spectroscopy and Magnetotunneling in Double Bilayer Graphene Heterostructures
Quantum Lifetime Spectroscopy and Magnetotunneling in Double Bilayer Graphene Heterostructures
We describe a tunneling spectroscopy technique in a double bilayer graphene heterostructure where momentum-conserving tunneling between different energy bands serves as an energy filter for the tunneling carriers, and allows a measurement of the quasiparticle state broadening at well-defined energies. The broadening increases linearly with the excited state energy with …