Manifestation of interdot spin tunneling effects in ordered arrays of quantum dots: An anomalous magnetization of In_{1-x}Mn_xAs
arXiv:1510.08008 · doi:10.1080/09500839.2015.1115133
Abstract
The anomalous low-temperature behavior of the spontaneous magnetization of ordered arrays of In_{1-x}Mn_xAs quantum dots is discussed. It is shown that the experimental results can be well understood, within a mean field approximation, assuming collective response through rather strong spin tunneling processes between neighbouring dots.
Accepted for publication in Philosophical Magazine Letters