Nature Materials 9, 120–124 (2010); published online: 20 December 2009; corrected after print: 29 January 2010.

In the version of this Letter originally published, the Author Contributions were missing, and should have been included as: “I.K.R and M.C.N. planned the experiments. ZnO nanorods were synthesized by S.J.L. Samples were designed and prepared by M.C.N. Experimental data was gathered by M.C.N., R.H. and I.K.R. Data analysis was carried out by I.K.R. and M.C.N. Strain-field reconstruction methods and procedures were designed and implemented by M.C.N. The manuscript was prepared by M.C.N.”

Also, in the PDF version of this Letter originally published, in the Methods section “At carrier gas” should have been “Ar carrier gas” and “Ar 900 C” should have been “At 900 C”.

These have been corrected in the PDF and HTML versions of this Letter.