Collapse of the spin-singlett phase in quantum dots

DOI to cite this document:: 10.5283/epub.1341

Ciorga, Mariusz ; Wensauer, Andreas ; Pioro-Ladriere, Michel ; Korkusinski, Marek ; Kyriakidis, Jordan ; Sachrajda, Andrew S. ; Hawrylak, Pawel

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Date of publication of this fulltext: 05 Aug 2009 13:27

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Abstract

We present experimental and theoretical results on a new regime in quantum dots in which the filling factor two-singlet state is replaced by new spin polarized phases. We make use of spin blockade spectroscopy to identify the transition to this new regime as a function of the number of electrons. The key experimental observation is a reversal of the phase in the systematic oscillation of the ...