Correction to: Nature Materials https://doi.org/10.1038/s41563-019-0585-z, published online 20 January 2020.

In the version of this Letter originally published, the last term of the equation for \(\varepsilon _{\mathrm{k}}^{\mathrm{R}}\) in the Methods incorrectly read \(8{\mathrm{t}}_{\left[ {2,1,1} \right]}^{\mathrm{R}}\left[ {\cos \left( {2{\mathrm{k}}_{\mathrm{x}}} \right) + \cos \left( {{\mathrm{k}}_{\mathrm{y}}} \right)\cos \left( {{\mathrm{k}}_{\mathrm{x}}} \right)\cos \left( {2{\mathrm{k}}_{\mathrm{y}}} \right)} \right]{\mathrm{cos}}\left( {{\mathrm{k}}_{\mathrm{z}}} \right)\); it should have read \(8{\mathrm{t}}_{\left[ {2,1,1} \right]}^{\mathrm{R}}\left[ {\cos \left( {2{\mathrm{k}}_{\mathrm{x}}} \right)\cos \left( {{\mathrm{k}}_{\mathrm{y}}} \right) + \cos \left( {{\mathrm{k}}_{\mathrm{x}}} \right)\cos \left( {2{\mathrm{k}}_{\mathrm{y}}} \right)} \right]{\mathrm{cos}}\left( {{\mathrm{k}}_{\mathrm{z}}} \right)\). This has now been corrected in the online versions of this Letter.