Publisher Correction: Topological frustration induces unconventional magnetism in a nanographene

Correction to: Nature Nanotechnology https://doi.org/10.1038/s41565-019-0577-9, published online 9 December 2019.

In the version of this Letter originally published online, in Fig. 2e and Fig. 3j, “Spin density Bohr magneton (μ_B)” should have been “Spin density (μ_B)”, in Fig. 2m, each pair of angular brackets ‘〈 〉’ should have been a ket ‘| 〉’, and, in the caption for Extended Data Fig. 1, ‘n_↑ = n_{↓ +} 2’ should have been ‘n_↑ = n_↓ + 2’. These errors have been corrected in all versions of the Article.