Zhao, Lukas
Deng, Haiming
Korzhovska, Inna
Chen, Zhiyi
Konczykowski, Marcin
Hruban, Andrzej
Oganesyan, Vadim
Krusin-Elbaum, Lia
Article History
Received: 4 August 2013
Accepted: 27 March 2014
First Online: 18 May 2014
Change Date: 22 May 2014
Change Type: Correction
Change Details: In the version of this Letter originally published, in Fig. 3a, the values of <i>n</i> should have read '~10<sup>19</sup> cm<sup>–3</sup>' and '~10<sup>17</sup> cm<sup>–3</sup>'. This error has now been corrected in the online versions of the Letter.
Competing interests
: The authors declare no competing financial interests.