Electromechanical Properties of Graphene Drumheads

Author:

Klimov Nikolai N.123,Jung Suyong12,Zhu Shuze4,Li Teng24,Wright C. Alan4,Solares Santiago D.24,Newell David B.3,Zhitenev Nikolai B.1,Stroscio Joseph A.1

Affiliation:

1. Center for Nanoscale Science and Technology, National Institute of Standards and Technology (NIST), Gaithersburg, MD 20899, USA.

2. Maryland NanoCenter, University of Maryland, College Park, MD 20742, USA.

3. Physical Measurement Laboratory, NIST, Gaithersburg, MD 20899, USA.

4. Department of Mechanical Engineering, University of Maryland, College Park, MD 20742, USA.

Abstract

Straining Suspended Graphene The electronic properties of graphene are best displayed by suspended sheets free from contact with an underlying substrate. Klimov et al. (p. 1557 ) probed how deformation of suspended graphene sheets could lead to further tuning of its electronic properties with a scanning tunneling microscope; the graphene sheets could also be deformed via an electric field from an underlying electrode. Spectroscopic studies reveal that the induced strain led to charge-carrier localization into spatially confined quantum dots, an effect consistent with the formation of strain-induced pseudomagnetic fields.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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