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- IBM (United States)US87 papers
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11 papers · 2 filters
Effects of optical and surface polar phonons on the optical conductivity of doped graphene
Benedikt Scharf, Vasili Perebeinos, Jaroslav Fabian +1
Using the Kubo linear response formalism, we study the effects of intrinsic graphene optical and surface polar phonons (SPPs) on the optical conductivity of doped graphene. We find…
Mid-infrared plasmons in scaled graphene nanostructures
Hugen Yan, Tony Low, Wenjuan Zhu +6
Plasmonics takes advantage of the collective response of electrons to electromagnetic waves, enabling dramatic scaling of optical devices beyond the diffraction limit. Here, we dem…
Contact-induced negative differential resistance in short-channel graphene FETs
Roberto Grassi, Tony Low, Antonio Gnudi +1
In this work, we clarify the physical mechanism for the phenomenon of negative output differential resistance (NDR) in short-channel graphene FETs (GFETs) through non-equilibrium G…
Structure and electronic transport in graphene wrinkles
Wenjuan Zhu, Tony Low, Vasili Perebeinos +5
Wrinkling is a ubiquitous phenomenon in two-dimensional membranes. In particular, in the large-scale growth of graphene on metallic substrates, high densities of wrinkles are commo…
Measurement-induced qubit state mixing in circuit QED from up-converted dephasing noise
D. H. Slichter, R. Vijay, S. J. Weber +5
We observe measurement-induced qubit state mixing in a transmon qubit dispersively coupled to a planar readout cavity. Our results indicate that dephasing noise at the qubit-readou…
Quantum behavior of graphene transistors near the scaling limit
Yanqing Wu, Vasili Perebeinos, Yu-ming Lin +3
The superior intrinsic properties of graphene have been a key research focus for the past few years. However, external components, such as metallic contacts, serve not only as esse…