Conveners
M3-2 Unconventional superconductivity and topology (DCMMP) | Supraconductivité non conventionnelle et topologie (DPMCM)
- Robert Wickham
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Prof. Philippe St-Jean (Universite de Montreal)06/06/2022, 16:00Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)Invited Speaker / Conférencier(ère) invité(e)
The discovery of topological phases of matter has revolutionized our understanding of condensed matter. Recently, the idea of emulating these phases in synthetic materials, e.g. cold atoms in optical lattices or photons in dielectric nanostructures, has proven to be an extremely powerful approach for exploring topological physics beyond what is physically reachable in the solid-state. This...
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Dr Majid Kheirkhah (University of Alberta)06/06/2022, 16:30Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)Oral (Non-Student) / Orale (non-étudiant(e))
In the presence of certain symmetries, three-dimensional Dirac semimetals can harbor not only surface Fermi arcs, but also surface Dirac cones. Motivated by the experimental observation of rotation-symmetry-protected Dirac semimetal states in iron-based superconductors, we investigate the potential intrinsic topological phases in a $C_{4z}$-rotational invariant superconducting Dirac semimetal...
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Mr Bill Truong06/06/2022, 16:45Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle)
We consider the transport of Majorana zero modes across a 1D topological superconductor by applying local gate voltages across sections of the superconductor. This “piano key” method allows for sections of the superconductor to switch between the trivial and topological phases, thereby facilitating the motion of a Majorana zero mode. As a single section, or piano key, undergoes a phase...
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Dr Qiang Chen (Department of Physics and Astronomy, McMaster University)06/06/2022, 17:00Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)Oral (Non-Student) / Orale (non-étudiant(e))
The phase diagram of the kagome metal family AV$_3$Sb$_5$ (A = Cs, Rb, K) features both superconductivity and charge density wave (CDW) instabilities, which have generated tremendous recent attention. Nonetheless, significant questions regarding the nature of the CDW states remain. In particular, the temperature evolution and demise of the CDW state has not been extensively studied, and...
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Jonah Gautreau06/06/2022, 17:15Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM)Oral not-in-competition (Graduate Student) / Orale non-compétitive (Étudiant(e) du 2e ou 3e cycle)
CsV3Sb5 a member of the recently discovered class of Kagome superconductors AV3Sb5 (A=K, Rb, Cs), which provide a rich environment to study topological band structure and charge density wave (CDW) order in an ideal vanadium Kagome lattice. In this work we performed muon spin rotation/relaxation (uSR) measurements on high-quality single crystal samples in the normal and superconducting states....
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