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Imaging currents in two-dimensional quantum materials - by Katja Nowack

Feb 24, 2017, 11:00 AM-12:00 PM

Rooms 202/204

Host: Britton Plourde | Contact: Tyler Engstrom, taengstr@syr.edu

Magnetic imaging is uniquely suited to the non-invasive imaging of current densities, particularly in two-dimensional devices. In this talk, I will showcase this approach by discussing measurements on HgTe quantum well devices in the quantum spin Hall (QSH) regime. In a nutshell, we scan a superconducting quantum interference device (SQUID) to obtain maps of the magnetic field produced by the current flowing in a device. From the magnetic image we reconstruct a two-dimensional current distribution with a spatial resolution of several microns. This allows us to directly visualize that most of the current is carried by the edges of the quantum well devices when tuned into their insulating gaps - a key feature of the QSH state. I will discuss routes towards improving the spatial resolution of the current images to sub-micron length scales through a combination of improved image reconstruction and smaller sensor sizes and outline opportunities for current imaging in a range of materials including graphene and magnetically doped topological insulators.

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TBD by Yuval Grossman

Mar 9, 2017, 3:30 PM-5:00 PM

202 Physics Bldg.

Refreshments at 3:30 pm and the talk starting at 3:45 pm

Contact: Yudaisy Salomón Sargentón, 315-443-5960

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Society of Physics Student's colloquium presented by Jack Laiho

Mar 10, 2017, 2:00 PM-3:30 PM

202 Physics Bldg.

Host: Patrick Miles/ Contact: Yudaisy Salomón Sargentón, 315-443-5960

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TBD by Mukund Vengalattore

Mar 23, 2017, 3:30 PM-4:45 PM

202 Physics Bldg.

Host: Prof. Matthew LaHaye / Contact: Yudaisy Salomón Sargentón, 315-443-5960

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TBD - by Chih-Kuan Tung

Mar 24, 2017, 11:00 AM-12:00 PM

Rooms 202/204

Host: Lisa Manning | Contact: Tyler Engstrom, taengstr@syr.edu

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TBD by Mustafa Amin

Mar 24, 2017, 12:00 PM-2:00 PM

208 Physics Bldg

Host: Prof. Scott Watson / Contact: Yudaisy Salomón Sargentón, 315-443-5960

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Visiting Day for Admitted Graduate Students

Mar 27, 2017, 9:00 AM-5:00 PM

202/204 Physics Bldg.

Host: Stefan Ballmer, Tomasz Skwarnicki and Patty Whitmore. Contact: Yudaisy Salomon Sargenton

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TBD by Joaquin Drut

Mar 27, 2017, 2:00 PM-3:00 PM

202 Physics Bldg.

Host: Prof. Simon Catterall / Contact: Yudaisy Salomón Sargentón, 315-443-5960

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TBD by Neil Donahue

Mar 30, 2017, 3:30 PM-4:45 PM

202 Physics Bldg.

Host: Prof. Matthew Rudolph / Contact: Yudaisy Salomón Sargentón, 315-443-5960

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TBD - by Irmgard Bischofberger

Mar 31, 2017, 11:00 AM-12:00 PM

Rooms 202/204

Host: Joseph Paulsen | Contact: Tyler Engstrom, taengstr@syr.edu

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TBD by Peter Lepage

Apr 6, 2017, 3:30 AM-5:00 PM

202 Physics Bldg.

Refreshments at 3:30 pm and the talk starting at 3:45 pm

Contact: Yudaisy Salomón Sargentón, 315-443-5960

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TBD - by Paul Janmey

Apr 7, 2017, 11:00 AM-12:00 PM

Rooms 202/204

Host: Jen Schwarz | Contact: Tyler Engstrom, taengstr@syr.edu

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Why Black Holes Matter by Prof. Paul Souder

Apr 8, 2017, 9:00 AM-1:00 PM

Aurora Inn (391 Main St., Aurora) on Cayuga Lake

To register, please call 315.685.7163



The intriguing and fascinating world of black holes is the subject of a lecture by nuclear physicist Paul Souder, benefitting the Southern Cayuga Planetarium and Observatory in Aurora, New York.  

Souder, a professor of physics at Syracuse University, will deliver a multimedia presentation titled “Why Black Holes Matter” on Saturday, April 8, at 11 a.m. at the historic Aurora Inn (391 Main St., Aurora) on Cayuga Lake. He will provide an overview of black holes, as well as share some recent findings, including the discovery of a rare, medium-weight black hole.

The event is open to the public; however, registration is required. Tickets are $45, and include the lecture, lunch and a silent auction. To register, please call 315.685.7163, or send a check, payable to “Friends of the Southern Cayuga Planetarium,” to P.O. Box 186, Aurora NY 13026. Seating is limited; tickets also are available at the door, while supplies last.

Following the lecture, attendees are entitled to a free private tour of MacKenzie-Childs, a Victorian farm that produces high-end tableware and home furnishings, and a $5 wine tasting at Bet the Farm Winery and Gourmet Market.

For an additional $250, couples may spend the night at the Aurora Inn/E.B. Morgan House or the Rowland House, partaking of wine and cheese with Souder and a continental breakfast the next morning. Space is limited; the deadline to book a room is Wednesday, March 15.

Proceeds benefit the Friends of the Southern Cayuga Planetarium, a nonprofit organization raising money to restore and reopen the 50-year-old planetarium, closed in 2014.

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TBD by A.P. Balachandran

Apr 10, 2017, 2:00 PM-3:00 PM

202 Physics Bldg.

Host: Prof. Simon Catterall / Contact: Yudaisy Salomón Sargentón, 315-443-5960

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TBD by Rachel Rosen

Apr 13, 2017, 3:30 PM-5:00 PM

202 Physics Bldg.

Refreshments at 3:30 pm and the talk starting at 3:45 pm

Host: Prof. Scott Watson / Contact: Yudaisy Salomón Sargentón, 315-443-5960

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TBD - by Daniel Sussman

Apr 14, 2017, 11:00 AM-12:00 PM

Rooms 202/204

Host: Jen Schwarz | Contact: Tyler Engstrom, taengstr@syr.edu

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TBD by Aarti Veernala

Apr 17, 2017, 2:00 PM-3:00 PM

202 Physics Bldg.

Host: Prof. Simon Catterall / Contact: Yudaisy Salomón Sargentón, 315-443-5960

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TBD by Mats Selen

Apr 20, 2017, 3:30 PM-5:00 PM

202 Physics Bldg.

Refreshments at 3:30 pm and the talk starting at 3:45 pm

Host: Prof. Gianfranco Vidali / Contact: Yudaisy Salomón Sargentón, 315-443-5960

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TBD - by Arshad Kudrolli

Apr 21, 2017, 11:00 AM-12:00 PM

Rooms 202/204

Host: Joseph Paulsen | Contact: Tyler Engstrom, taengstr@syr.edu

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TBD by Prateek Agrawal

Apr 24, 2017, 2:00 PM-3:00 PM

202 Physics Bldg.

Host: Prof. Jay Hubisz / Contact: Yudaisy Salomón Sargentón, 315-443-5960

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TBD by Brian Nord

Apr 27, 2017, 3:30 PM-5:00 PM

202 Physics Bldg.

Refreshments at 3:30 pm and the talk starting at 3:45 pm

Host: Prof. Scott Watson / Contact: Yudaisy Salomón Sargentón, 315-443-5960

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TBD - by Madhav Mani

Apr 28, 2017, 11:00 AM-12:00 PM

Rooms 202/204

Host: Lisa Manning | Contact: Tyler Engstrom, taengstr@syr.edu

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TBD - by Pankaj Mehta

May 5, 2017, 11:00 AM-12:00 PM

Rooms 202/204

Host: Lisa Manning | Contact: Tyler Engstrom, taengstr@syr.edu

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Cosmological Seed Magnetic Field from Inflation by Bharat Ratra

Sep 18, 2017, 2:00 PM-3:00 PM

202 Physics Bldg.

Host: Prof. Scott Watson / Contact: Yudaisy Salomón Sargentón, 315-443-5960

A cosmological magnetic field of nG strength on Mpc length scales could be the seed magnetic field needed
to explain observed few microG large-scale galactic magnetic fields. I first briefly review the observational
and theoretical motivations for such a seed field, two galactic magnetic field amplification models, and some
non-inflationary seed field generation scenarios. I then discuss an inflation magnetic field generation model.
I conclude by mentioning possible extensions of this model as well as potentially observable consequences.