Creating and probing electron whispering-gallery modes in graphene-Reference-Cited by-同舟云学术

Creating and probing electron whispering-gallery modes in graphene

Published:2015-05-08 Issue:6235 Volume:348 Page:672-675
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Zhao Yue¹²,Wyrick Jonathan¹,Natterer Fabian D.¹,Rodriguez-Nieva Joaquin F.³,Lewandowski Cyprian⁴,Watanabe Kenji⁵,Taniguchi Takashi⁵,Levitov Leonid S.³,Zhitenev Nikolai B.¹,Stroscio Joseph A.¹

Affiliation:

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

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

3. Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

4. Department of Physics, Imperial College London, London SW7 2AZ, UK.

5. National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan.

Abstract

A circular route to confine electrons Physical barriers are used to confine waves. Whether it is harbor walls for sea waves, a glass disk for light, or the “whispering gallery” circular chamber walls in St. Paul's Cathedral for sound, the principle of confinement—reflection—is the same. Zhao et al. used that same principle to confine electrons in a nanoscale circular cavity in graphene. Periodic patterns within the cavity were associated with an electronic wave version of whispering gallery modes. The tunability of the cavity size may provide a route for the manipulation of electrons in graphene and similar materials. Science , this issue p. 672

Funder

National Institute of Standards and Technology

Center for Nanoscale Science and Technology

University of Maryland

Swiss National Science Foundation

Nation Research Council Fellowship

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference31 articles.

1. Micrometer-Scale Ballistic Transport in Encapsulated Graphene at Room Temperature