Physics Seminar: 2D materials in the ultraclean limit: basic science and applications

NEW YORK CITY COLLEGE OF TECHNOLOGY
Physics Department
Center for Theoretical Physics

2D materials in the ultraclean limit: basic science and applications

Presented by: Prof. James Hone

Columbia University
New York, NY, USA

Thursday, March 02 at 1:00 PM
Namm, Room 823

Abstract

Two-dimensional materials offer a wide range of outstanding properties but are highly sensitive to disorder from the environment. We have developed a ‘van der Waals transfer’ technique to encapsulate graphene within crystalline h-BN with nearly perfect interfaces, and an ‘edge contact’ technique to achieve electrical contact to the encapsulated channel. Using these and related techniques, we can study 2D materials and applications in the ultraclean limit. This talk will summarize recent results in four areas: [1] Demonstration of negative refraction at graphene p-n junctions; [2] Tunable interactions and evidence for exciton condensation in double-layer heterostructures of bilayer graphene; [3] graphene light emitters; and [4] approaching the intrinsic photoluminescence linewidth in 2D semiconductors.

Light refreshments will be served.

Symposium on Amazing Stories: Inspiration, Learning, and Adventure in Science Fiction

Symposium on Amazing Stories

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“By ‘scientifiction’ I mean the Jules Verne, H. G. Wells and Edgar Allan Poe type
of story—a charming romance intermingled with scientific fact and prophetic
vision … Not only do these amazing tales make tremendously interesting
reading—they are always instructive.”
-Hugo Gernsback, 1926.

When the widely recognized “Father of Science Fiction,” Hugo Gernsback first coined the term that captured the essence of the genre we now call science fiction (SF), he envisioned SF as a new form of literature that inspired with prophecy, taught with scientific and technical facts, and engaged with adventure. These traits unique to SF have launched many of its readers on trajectories into the STEAM (Science, Technology, Engineering, Arts, and Mathematics) fields.

Join us for a one-day symposium exploring SF as a medium for engaging imagination, a means for exploring STEM/STEAM fields, and an instrument for discovering interdisciplinary connections, and also celebrating the new City Tech Science Fiction Collection held in the Archives and Special Collections of the Ursula C. Schwerin Library.

Contact Jason Ellis at JEllis@citytech.cuny.edu for more information.

Organizing Committee: Jason Ellis (Chair), Aaron Barlow, Jill Belli, and Mary Nilles.

Hosted by the School of Arts and Sciences at the New York City College of Technology, CUNY.

The Undergraduate Research Programs present
The Birth of Sono-Astronomy
When the Cosmos Does the Wave

A talk by

National Medal of Science winner and PCAST member, Physicist S. James Gates

 

[icon name=”calendar” class=”” unprefixed_class=””] Date: Monday, April 4, 2016
[icon name=”clock-o” class=”” unprefixed_class=””] Time: 4 PM
[icon name=”map-marker” class=”” unprefixed_class=””] Location: Atrium Amphitheatre
[icon name=”file-pdf-o” class=”” unprefixed_class=””] View Poster

FACULTY AND STUDENTS ARE WELCOME.

 

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Biography:

dr._sylvester_gatesSylvester James Gates Jr. is a Distinguished University Professor, University System of Maryland Regents Professor and John S. Toll Professor of Physics at the University of Maryland. Also an affiliate mathematics professor, Gates is known for his pioneering work in supersymmetry and supergravity, areas closely related to string theory. Gates earned two Bachelor of Science degrees in physics and mathematics and his Ph.D. in physics from the Massachusetts Institute of Technology. In 1984, Gates co-authored Superspace, or One thousand and one lessons in supersymmetry, the first comprehensive book on supersymmetry, and joined the faculty at Maryland as an associate professor. Four years later, he became the first African American to hold an endowed chair in physics at a major U.S. research university.

The author of more than 200 research papers and a member of the National Academy of Sciences, Gates has been featured in dozens of video documentaries (NOVA, etc.), including five in 2015. For his contribution to science and research, he received the National Medal of Science from President Obama in 2013. Gates serves on the U.S. President’s Council of Advisors on Science and Technology (PCAST), the National Commission on Forensic Science, and the Maryland State Board of Education. He is a strong advocate for science, technology, engineering and mathematics education.