Robert M. Westervelt

About

Robert M. Westervelt is the Mallinckrodt Professor of Applied Physics and of Physics at Harvard University. He serves as the Director of the NSF Science and Technology Center for Integrated Quantum Materials and the Center for Nanoscale Systems at Harvard. His primary teaching area is Applied Physics. Westervelt's research focuses on applied physics and quantum engineering, contributing to advancements in quantum science and technology. His work involves developing innovative approaches in nanoscale systems and quantum materials, supporting the education of the next generation of quantum scientists through collaboration with institutions such as Harvard, the White House, and the NSF.

Research topics

• Materials science
• Physics
• Condensed matter physics
• Nanotechnology
• Optoelectronics

Selected publications

• Direct Observation of a Long-Lived Single-Atom Catalyst Chiseling Atomic Structures in Graphene

  Nano Letters · 2014-01-21 · 95 citations

  articleOpen access

  Fabricating stable functional devices at the atomic scale is an ultimate goal of nanotechnology. In biological processes, such high-precision operations are accomplished by enzymes. A counterpart molecular catalyst that binds to a solid-state substrate would be highly desirable. Here, we report the direct observation of single Si adatoms catalyzing the dissociation of carbon atoms from graphene in an aberration-corrected high-resolution transmission electron microscope (HRTEM). The single Si ato…

  PublisherOA PDFDOI

• Imaging Cyclotron Orbits of Electrons in Graphene

  Nano Letters · 2016-02-04 · 85 citations

  articleOpen accessSenior author

  Electrons in graphene can travel for several microns without scattering at low temperatures, and their motion becomes ballistic, following classical trajectories. When a magnetic field B is applied perpendicular to the plane, electrons follow cyclotron orbits. Magnetic focusing occurs when electrons injected from one narrow contact focus onto a second contact located an integer number of cyclotron diameters away. By tuning the magnetic field B and electron density n in the graphene layer, we obs…

  PublisherOA PDFDOI

• Portable NMR with Parallelism

  Analytical Chemistry · 2020-01-02 · 51 citations

  article

  Portable NMR combining a permanent magnet and a complementary metal-oxide-semiconductor (CMOS) integrated circuit has recently emerged to offer the long desired online, on-demand, or in situ NMR analysis of small molecules for chemistry and biology. Here we take this cutting-edge technology to the next level by introducing parallelism to a state-of-the-art portable NMR platform to accelerate its experimental throughput, where NMR is notorious for inherently low throughput. With multiple (N) samp…

  PublisherDOI

• Superfluid stiffness of twisted trilayer graphene superconductors

  Nature · 2025-02-05 · 38 citations

  article
  PublisherDOI

• Imaging Andreev Reflection in Graphene

  Nano Letters · 2020-06-02 · 27 citations

  articleOpen accessSenior authorCorresponding

  Coherent charge transport along ballistic paths can be introduced into graphene by Andreev reflection, for which an electron reflects from a superconducting contact as a hole, while a Cooper pair is transmitted. We use liquid-helium cooled scanning gate microscopy (SGM) to image Andreev reflection in graphene in the magnetic focusing regime, where carriers move along cyclotron orbits between contacts. Images of flow are obtained by deflecting carrier paths and displaying the resulting change in…

  PublisherOA PDFDOI

Recent grants

• NNCI: The Center for Nanoscale System (CNS) at Harvard University

  NSF · $5.0M · 2015–2023

• Center for Integrated Quantum Materials

  NSF · $44.4M · 2013–2027

• Science of Nanoscale Systems and their Device Applications NSEC

  NSF · $10.3M · 2006–2012

Frequent coauthors

• A. C. Gossard

  University of California, Santa Barbara

  38 shared

• Eric J. Heller

  25 shared

• David Issadore

  University of Pennsylvania

  25 shared

• Sagar Bhandari

  SUNY Downstate Health Sciences University

  25 shared

• Hakho Lee

  Massachusetts General Hospital

  23 shared

• Keith A. Brown

  21 shared

• K. L. Campman

  University of California, Santa Barbara

  19 shared

• K. D. Maranowski

  17 shared

Labs

• Westervelt Research GroupPI

Education

• PhD, Physics

  University of California Berkeley UC Data

  1977

• BS, Physics

  California Institute of Technology

  1971

Similar researchers at Harvard University

• David R. Nelsonh-116
• Amir Yacobyh-92
• Evelyn Huh-72