Nature Communications 4: Article number: 1707 (2013); Published: 16 April 2013; Updated: 25 October 2013.

This Article contains typographical errors in the second paragraph of the Results section and the first paragraph of the Discussion section. In each case the magneto-electric (ME) coefficient of the nanoparticles was incorrectly cited in V cm−1 Oe−1, whereas the value should have been 100 mV cm−1 Oe−1.