2018 MRS Spring Meeting

Call for Papers

Symposium NM13—Functionalization of Topological Materials

The field of 2D and 3D topological insulators has considerably matured in recent years. However, there are still many unresolved problems and new astonishing phenomena, in particular connected with the functionalization of topological insulators. Moreover, the rapid development of 3D Dirac and Weyl semimetals brings along new properties with further strong materials’ perspectives.

One aspect of functionalization concerns the combination of topological insulators with magnetism in the bulk or at interfaces as, e. g., required for the realization of the quantum anomalous Hall effect. Here, enormous progress has been achieved in the creation of robust quantized and lossless edge channels while the magnetic structure remains poorly understood. Ferromagnet-topological insulator interfaces can give rise to enhanced magnetism and spin-orbit torques, according to recent reports. These properties require further investigation. Further functionalization concerns topological superconductors and Josephson junctions which have progressed as well. Other combinations of topological insulators, such as ferroelectric ones, are so far only envisioned theoretically.

3D Dirac and Weyl semimetals have been realized in various compounds and materials’ design will allow for further perspective. Here, a current question concerns behavior and interpretation of the large measured magnetoresistance.

The symposium will dedicate individual sessions to these problems. Invited abstracts will serve as anchors for the accommodation of more specialized contributed talks. The functionalization aspect shall, where possible, allow for the discussion of possible applications. This shall be done in the last session.

Topics will include:

  • Influence of disorder in topological insulators and related semimetals
  • Quantum anomalous Hall effect and magnetically doped topological insulators
  • Interfaces with ferromagnets and spin-orbit torque
  • Topological superconductivity and superconducting interfaces
  • 3D Dirac and Weyl semimetals: materials’ design and transport properties
  • A tutorial complementing this symposium is tentatively planned.

Invited Speakers:

  • Leon Balents (University of California at Santa Barbara, USA)
  • Haim Beidenkopf (Weizmann Institute, Israel)
  • Christoph Brüne (Universität Würzburg, Germany)
  • Flavio Bruno (Université de Genève, Switzerland)
  • Cui-Zu Chang (Pennsylvania State University, USA)
  • Yu-Lin Chen (Oxford University, United Kingdom)
  • Yabin Fan (University of California at Los Angeles, USA)
  • Ke He (Tsinghua University, China)
  • Dmitry Pikulin (Microsoft Station Q, USA)
  • Leslie Schoop (Max-Planck Institute Stuttgart, Germany)
  • Björn Sothmann (Universität Duisburg-Essen, Germany)
  • Atsushi Tsukazaki (Tohoku University, Japan)

Symposium Organizers

Oliver Rader
Helmholtz-Zentrum Berlin

Ewelina Hankiewicz
Universität Würzburg
Institut für Theoretische Physik

Günter Reiss
Universität Bielefeld
Department of Physics

Nitin Samarth
Pennsylvania State University
Department of Physics

Keywords for Abstract Submission

electronic structure, quantum anomalous Hall effect, quantum spin Hall effect, spin-orbit torque, topological insulators, topological superconductors, Weyl semimetal

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