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.

Strong covalency and ligand holes, or how to make magnetic gold?

13 Jul2017

Speaker: Daniel Khomskii - Physikalisches Institut, Universitaet zu Koeln, Germany

Time: Thursday, July 13, 2017 @ 2:00pm

Location: AMPEL 311

In this talk, Professor Khomski will discuss some effects occurring in transition metal compounds with small or negative charge transfer gap and with large contribution of ligand (e.g. oxygen) holes. Special attention will be paid to the compounds of 4d and 5d elements. The apparent inversion of crystal field levels, as well as the tendency to spontaneous charge disproportionation...

Get Event Details

Edge states and exact zero modes in topological 1D quantum magnets

06 Jul2017

Speaker: Frédéric Mila, Ecole Polytechnique Fédérale de Lausanne, Switzerland

Time: Thu, 2017-07-06 14:00 - 15:00

Location: AMPEL 311

Motivated by recent STM experiments on chains of Co adatoms that have revealed a series of ground state level crossings as a function of an external magnetic field, and by their possible connection to Majorana edge states, I will discuss the coupling between edge states in two topological phases of 1D quantum magnets, the transverse field Ising model, and...

Get Event Details

  • Student

Nonlinear and ultrafast optical investigations of correlated materials

04 Jul2017

Speaker: Hao Chu

Time: Tuesday July 4, 2017 @ 3:00 - 4:00 pm

Location: AMPEL 311

The spin-orbit coupled perovskite iridates Srn+1IrnO3n+1 share many similarities with the cuprate high-Tc superconductors in terms of their structural and electronic properties. For example, in single-layer Sr2IrO4, both a pseudogap as well as d-wave gap have been observed upon carrier doping. Using optical second harmonic generation rotational anisotropy (SHG-RA), I will discuss our discovery of a parity-odd multipolar order...

Get Event Details

Investigating Local Moments in Graphene in the Low Temperature Limit

27 Jun2017

Speaker: Dr. Silvia Luescher Folk

Time: Tuesday June 27, 2017 @ 11:00 am - 12:00 pm

Location: AMPEL 311

Graphene has been touted as a promising material for spintronics, due to its low intrinsic spin-orbit and hyperfine interactions. Over the past decade, however, it has become clear that conduction electron spins in most forms of graphene interact strongly with local magnetic moments. Unfortunately for spintronics applications, these interactions lead to rapid spin relaxation and dephasing. Well below 1Kelvin,...

Get Event Details

Determining a topological index from Landau level spectroscopy and magnetotransport in the quantum limit

08 Jun2017

Speaker: Badih A. Assaf, Department of Physics, Ecole Normale Supérieure, PSL, CNRS

Time: Thursday June 8, 2017 at 12:00 - 1:00 PM

Location: AMPEL 311

When a Dirac fermion system acquires an energy gap (or mass), it is said to have either trivial or non-trivial band topology depending on parity ordering of the conduction and valence band edges. A non-trivial material is generally identified via the observation of topological Dirac surface states dispersing in its bulk energy gap, and is attributed a non-zero topological...

Get Event Details

What’s Cooking?

05 Jun2017

Speaker: John Mitchell, Argonne National Laboratory

Time: Monday June 5, 2017 at 2:00 - 3:00 PM

Location: AMPEL 311

Correlated electron oxides remain a foremost area of research, principally because they host essentially the entirety of contemporary condensed matter science — superconductivity, magnetism, multiferroicity, topological protection, etc. In this talk I will discuss some recent work in a few areas of transition metal oxide materials physics: Specifically, I will describe our recent work on iridates, in particular magnetic...

Get Event Details

Non-Fermi-liquid scattering rates, anomalous band dispersions, and Hund’s metal behavior in iron-based superconductors – an ARPES study

25 May2017

Speaker: Jorg Fink, Leibniz Institute for Solid State and Materials Research Dresden, Max Planck Institute for Chemical Physics of Solids, Dresden Institute of Solid State Physics, Dresden University of Technology

Time: Thursday, May 25 at 4:00 PM

Location: AMPEL 311

Unconventional/high temperature superconductivity (SC) is observed in heavy fermion systems, cuprates, molecular crystals, and ferropnictides close to a point in the phase diagram where, as a function of a control parameter such as pressure, chemical pressure, or doping, the antiferromagnetic order is suppressed. A widespread view is that at this point, which is called a quantum critical point, strong...

Get Event Details

Investigating the Role of Disorder, Electron Concentration, and Lattice Compression in Uranium-based Heavy Fermion Systems

25 May2017

Speaker: Eteri Svanidze, McMaster University

Time: Thu, 2017-05-25 14:00 - 15:00

Location: Hennings 318

Get Event Details

  • Seminar
  • Student

Magneto-structural phase transitions in epitaxial FeRh films: Insights from structural and magnetic microscopy

24 May2017

Speaker: David Keavney, Argonne National Laboratory

Time: Wednesday May 24 at 11:00 AM

Location: AMPEL 311

In materials where structural, magnetic, or electronic degrees of freedom are coupled, rich phase diagrams and potentially useful driven phase transitions can be the result. One such material is the ordered alloy Fe50Rh50, which displays a magneto-structural phase transition at ~375 K. This transition is characterized by a ~1% lattice expansion and a flip from the low temperature antiferromagnetic...

Get Event Details

Dopants and Charge Carriers in Colloidal Quantum Dots

18 May2017

Speaker: Daniel R. Gamelin, Department of Chemistry, University of Washington

Time: Thu, 2017-05-18 14:00 - 15:00

Location: Hennings 318

The physical properties of inorganic crystalline materials can be dramatically transformed by controlled introduction of impurities or other defects, without which most semiconductor technologies including transistors, diodes, and solar cells would not be possible. The development and characterization of high-quality doped inorganic crystals has consequently been a perennial research frontier. This talk will describe some of our group’s recent...

Get Event Details

  • Student

Pages