Measurements of a fast nuclear-spin dynamics in a single InAs quantum dot with positively charged excitonX. M. Dou, B. Q. Sun, D. S. Jiang, H. Q. Ni and Z. C. NiuEPL, 98 1 (2012) 17007DOI: https://doi.org/10.1209/0295-5075/98/17007