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Prof. Dr. Yoichi Ando,
II. Physikalisches Institut, Universität zu Köln


PGI Lecture Hall, Building 04.8, 2nd Floor, Room 365

18.12.2015 11:00 Uhr

Topological insulators and superconductors

Topological insulators and superconductors are new quantum states of matter that are characterized by nontrivial topological structures of the Hilbert space [1].

Recently, they have attracted a lot of attention because of the appearance of exotic quasiparticles such as spin-helical Dirac fermions or Majorana fermions on their surfaces, which hold promise for various novel applications [2].

In this colloquium, I will introduce the basics of those materials and present some of the key contributions we have made in this new frontier.

[1] Y. Ando, Topological Insulator Materials, J. Phys. Soc. Jpn. 81, 102001 (2013).
[2] Y. Ando and L. Fu, Topological Crystalline Insulators and Topological Superconductors: From Concepts to Materials, Annu. Rev. Condens. Mater Phys. 6, 361 (2015).


Dr. Gregor Mussler
Telefon: +49 2461 61-3580
Fax: +49 2461 61-2333