In solid materials, non-trivial topological states, electron correlations
and magnetism are central ingredients for realizing quantum properties,
including unconventional superconductivity, charge and spin density
waves and quantum spin liquids. The kagome lattice, made up of cornersharing
triangles, can host these three ingredients simultaneously
and has proved to be a fertile platform for studying diverse quantum
phenomena including those stemming from the interplay of these
ingredients. This Review introduces the fundamental properties of
the kagome lattice and discusses the complex phenomena observed in
several materials systems, including the intertwining of charge order
and superconductivity in some kagome metals, the modulation of
magnetism and topology in some kagome magnets, and the combination
of symmetry breaking and Mott physics in ‘breathing’ kagome insulators.
The Review also highlights open questions in the field and future research
directions in kagome systems.
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Free, publicly-accessible full text available September 27, 2024
