# Metallic and Insulating Adsorbates on Graphene

Source: [Metallic and Insulating Adsorbates on Graphene](<https://www.sota2.com/research/paper/68fa2a521e209131ce83c593>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T13:28:29.118Z

Authors: K. M. McCreary, K. Pi, R. K. Kawakami

Published: 2011-04-28T03:40:52.000Z

## Abstract

We directly compare the effect of metallic titanium (Ti) and insulating titanium dioxide (TiO2) on the transport properties of single layer graphene. The deposition of Ti results in substantial n-type doping and a reduction of graphene mobility by charged impurity scattering. Subsequent exposure to oxygen largely reduces the doping and scattering by converting Ti into TiO2. In addition, we observe evidence for short-range scattering by TiO2 impurities. These results illustrate the contrasting scattering mechanisms for identical spatial distributions of metallic and insulating adsorbates.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1104.5289>)

[PDF](<https://arxiv.org/pdf/1104.5289.pdf>)