In this work some results of the investigation of the new crystalline Hall effect, proposed by Libor et. al., in the compound CoNb3S6 for the antiferromagnetic collinear phase are presented. The electronic properties of the compound are determined by first principle methods, including orbital spin coupling. The topological properties present in the band structure of the crystal were analyzed and the presence of an "Hourglass" dispersion relation was found, due to the presence of non-symmetrical rotation symmetry axes. The relationship between the symmetries of the compound and the conductivity tensor was also analyzed, finding that the point magnetic group of the antiferromagnetic compound with Néel vector [100] is 2'2'2, so the conductivity tensor indicates the presence of a crystalline Hall effect. Using Wannier functions and Kubo equation, the Berry curvature and anomalous Hall conductivity were derived. Being a collinear antiferromagnetic material, a zero Hall conductivity would be expected for all components, but due to the spontaneous break of symmetry generated by the non-magnetic sulfur atoms surrounding the cobalt atoms, an anomalous Hall conductivity appears, which could be explained by the proposed mechanism of the crystalline Hall effect.

Crystal Hall Effect in Collinear Antiferromagnets: symmetry and first principles analysis of CoNb3S6

### **This Poster Session Sponsored by**

[![](https://assets.underline.io/uploads/markdown_image/1/image/cccc06bd98192f078cd86c0b3bcf03db.png)](https://www2.bluefors.com/l/853133/2020-10-13/6wsqs)

P6: Quantum technology in industry

poster

The Institute of Physics and IOP Publishing, in partnership with the Chinese Physical Society (CPS) and the University of Science and Technology of China (USTC) are proud to have brought together the international quantum science community online for this inaugural conference.


Early career and leading researchers from universities, industry and government worldwide came together to share, learn and collaborate on the latest research and emerging areas of high interest across quantum science and technology. The broad themes covered by Quantum 2020 included:

Quantum communication;
Quantum computing and quantum simulation;
Quantum sensing, metrology and imaging;
Quantum information theory, software and algorithms;
Quantum foundations;
Quantum technology in industry.
The four-day event featured talks from world-renowned scientists, interactive poster sessions and two exciting panel discussions on the themes of Quantum Technology in Industry and Quantum Technology Programmes Around the World.


You will need to [register](https://www.iopconferences.org/iop/frontend/reg/tRegisterEmailNew.csp?pageID=978403&eventID=1552&tempPersonID=536224) to obtain a ticket. . If you have already registered you should have been sent an email from Underline (to the email address that you registered with) with the subject line ‘Welcome to Quantum 2020’. This email includes your ticket for the event. 

If you have a ticket and are experiencing problems in accessing the event, please contact us. 

Quantum 2020

The Institute of Physics and IOP Publishing, in partnership with the Chinese Physical Society (CPS) and the University of Science and Technology of China (USTC) are proud to have brought together the international quantum science community online for this inaugural conference.

Early career and leading researchers from universities, industry and government worldwide came together to share, learn and collaborate on the latest research and emerging areas of high interest across quantum science and technology. 

Miguel Ricardo Sierra Cortes

1

SHORT BIO

Presentations

Crystal Hall Effect in Collinear Antiferromagnets: symmetry and first principles analysis of CoNb3S6

Stay up to date with the latest Underline news!

PRESENTATIONS

CONFERENCES

COMPANY

RESOURCES