Events

SBQMI hosts numerous academic and other events throughout the year. Please search by audience or event type, or enter a keyword, to find events of interest to you.

If you are interested in inviting our faculty as keynote speakers at your event, or are a school group interested in visiting our labs, please contact us to submit your request.

How Raman, X-Ray and DFT can be used to understand various families of carbon materials

29 Mar2019

Speaker: Pascal Puech, CEMES/university Paul Sabatier, Toulouse, France

Time: Mar 29, 2019, 2:00 PM - 3:00 PM

Location: Quantum Matter Institute

The crystallite sizes of carbon materials like coke are linked to their mechanical and electrical properties. Having a reliable method to determine these sizes is required for industrials. Due to its versatility and simplicity, Raman spectroscopy is a significant technique for carbon as the signal collected is quite large. Since the work of Tuinstra and Koenig [JCP53, 1126,1970], and after...

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  • Seminar

CM Seminar: Charged Rydberg States in Two Dimensional Semiconductors

28 Mar2019

Speaker: Tom Goldstein, UMass, Amherst

Time: Mar 28, 2019, 2:00 PM - 3:30 PM

Location: BRIM 311

Atomically thin Transition Metal Dichalcogenides (TMDCs) have many potential applications including flexible electronics, opto-electronics, spintronics (and many more) due to their quasi-2D nature and remarkable electronic properties. The excitons of semiconducting TMDCs are of particular interest due to the ‘valley’ index, an additional electron degree of freedom with potential use for data storage and computation. These excitons have an exceptionally...

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  • Seminar

CM Seminar: Magic Angle Twisted Bilayer Graphene

14 Mar2019

Speaker: Allan H. MacDonald, Physics Department, University of Texas at Austin

Time: Mar 15, 2019 14:00 - 15:00

Location: BRIM 311

Magic Angle Twisted Bilayer Graphene (MATBG) is a remarkably tunable and relatively simple strongly correlated electron system, with its own set of specific peculiarities. My talk will focus on similarities and differences between the interaction physics of flat-band moiré superlattices MATBG and transition metal dichalcogenide bilayers which simulate Hubbard model physics more closely. I will discuss the nature of the...

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  • Seminar

CM Seminar: Structure and Dynamics with Ultrafast Electron Microscopes … or how to image fundamental processes in materials

28 Feb2019

Speaker: Bradley J. Siwick Department of Chemistry and Department of Physics, Center for the Physics of Materials, McGill University

Time: Feb 28, 2019, 2:00 PM - 3:30 PM

Location: BRIM 311

In this talk I will describe how combining ultrafast lasers and electron microscopes in novel ways makes it possible to directly ‘watch’ the time-evolving structure of condensed matter on the fastest timescales open to atomic motion. By combining such measurements with complementary (and more conventional) spectroscopic probes one can develop structure-property relationships for materials under even very far from equilibrium...

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CM Seminar: Theory of heat transport in the fractional quantum Hall effect

26 Feb2019

Speaker: Yuvel Oreg, Weizmann Institute of Science

Time: Feb 26, 2019, 2:00 PM - 3:30 PM

Location: HENN 318

The thermal Hall conductance is a universal and topological property which characterizes the fractional quantum Hall ( FQH ) state. Quantized values of the thermal Hall conductance has only recently been measured experimentally in integer quantum Hall ( IQH ) and FQH regimes, These finding include observation of half integer quantized heat conductance at filling 5/2. In this talk I...

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  • Seminar

Special Seminar: Ultrafast spin dynamics probed by synchrotron x-ray and x-ray free electron laser

25 Feb2019

Speaker: Dr. Hiroki Wadati

Time: February 25, 2019, 2:00 PM - 3:00 PM

Location: BRIM 311

Control of spin states by optical excitations in magnetically ordered materials has attracted considerable attention since the ultrafast demagnetization in Ni was observed within 1 picosecond (ps) by time-resolved magneto-optic Kerr effect (trMOKE) studies [1].

Time-resolved x-ray magnetic circular dichroism (trXMCD) can provide information on element-specific spin dynamics.

X-rays from synchrotron radiation (SR) have time structures related to...

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  • Seminar
  • Workshop

CM Seminar: Signatures of dispersing Majorana modes in a proximitized topological material

14 Feb2019

Speaker: Vidya Madhavan, University of Illinois, Urbana-Champaign

Time: Feb 14, 2019, 2:00 PM - 3:30 PM

Location: BRIM 311

Majorana fermions can be realized as quasiparticle excitations in a topological superconductor, whose non-Abelian statistics provide a route to developing robust qubits. In this context, there has been a recent surge of interest in the iron-based superconductor, FeSe0.5Te0.5. Theoretical calculations have shown that FeSe0.5Te0.5 may have an inverted band structure which may lead to topological surface states, which can in...

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  • Seminar

CM Seminar: Many body entanglement, strange metals and black holes.

07 Feb2019

Speaker: Jan Zaanen Instituut-Lorentz for Theoretical Physics, Leiden University and the Physics Department, Stanford University, USA

Time: Thursday, Feb 7, 2019 :: 14:00 - 15:00

Location: BRIM 311

It may well be that mankind has understood only the tip of the iceberg when it comes to the nature of matter. Densely many body entangled compressible states of matter may exist exhibiting entirely different physical behaviors compared to the "classical" short ranged entangled product state stuffs from the high energy- and condensed matter textbooks. Although not computable directly -...

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  • Seminar

CM Seminar: Measurement and Control of Electron Dynamics Using THz Pulses

31 Jan2019

Speaker: David Cooke, Department of Physics, McGill University

Time: Jan 31, 2019, 2:00 PM - 3:00 PM

Location: HENN 318

Phase-locked, few-cycle pulses of THz frequency light are powerful tools for both probing and driving ultrafast dynamics of low energy (meV scale) excitations in condensed matter. As an example of using THz pulses as a time-resolved probe, I discuss recent multi-THz spectroscopy experiments on the widely researched hybrid organometallic halide perovskites. These solution processable materials have been successfully applied to...

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