**Mikhail M. Otrokov, **

**Centro de Física de Materiales (CFM-MPC), Centro Mixto CSIC-UPV/EHU, San Sebastián, Spain**

**IKERBASQUE, Basque Foundation for Science, Bilbao, Spain**

## Combining magnetism and topology: from magnetic doping to novel interfaces and intrinsic magnetic topological insulators

#### When: 12:00-13:00 CET, June 15th (Thursday), 2023

#### Where: Seminar Room, ICMM-CSIC, Campus de Cantoblanco, Madrid

In this talk, I will overview the developments in the field of magnetic topological insulators (MTIs) that led to the discovery of the intrinsic MTIs of the MnBi_{2}Te_{4} family that attracts a great deal of attention nowadays. First, to describe the context in which materials such as MnBi_{2}Te_{4} appeared in the research arena, I will discuss the magnetic doping and magnetic proximity effect approaches of introducing magnetism into a TI. Then, the two types of novel and promising interfaces involving MnBi_{2}Te_{4} compounds will be discussed, as they are expected to show certain advantages over the latter two approaches. Next, the discovery of intrinsic MTIs of the MnBi_{2}Te_{4} family will be overviewed. Finally, concerning current challenges of this field, we will consider in detail the issue of the Dirac point gap in the MnBi_{2}Te_{4}topological surface state that has caused a lot of controversy recently.