Monday, February 27, 2023

The Topological Zoo


Is it topological? A new materials database has the answer
May 2022, phys.org

Topo is coming:

Harnessing the power of multiple supercomputers to map the electronic structure of more than 96,000 natural and synthetic crystalline materials to determine whether and what kind of topological traits exist in each structure.

Overall, they found that 90 percent of all known crystalline structures contain at least one topological property, and more than 50 percent of all naturally occurring materials exhibit some sort of topological behavior.

Topological Materials Database - periodic table of topology
Inorganic Crystal Structure Database - atomic and chemical structures of crystalline materials

via MIT, Princeton and the École Normale Supérieure Paris: Maia G. Vergniory et al, All Topological Bands of All Non-Magnetic Stoichiometric Materials, Science (2022). DOI: 10.1126/science.abg9094

Image credit: Topological Zoo - Anatoly Fomenko - 1967

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