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  • Title: Pairing of spin excitations in lateral quantum dots.
    Author: Korkusiński M, Hawrylak P, Ciorga M, Pioro-Ladrière M, Sachrajda AS.
    Journal: Phys Rev Lett; 2004 Nov 12; 93(20):206806. PubMed ID: 15600956.
    Abstract:
    We demonstrate the existence of correlated electronic states as paired spin excitations of lateral quantum dots in the integer quantum Hall regime. Starting from the spin-singlet filling-factor nu=2 droplet, by increasing the magnetic field we force the electrons to flip spins and increase the spin polarization. We identify the second spin-flip process as one accompanied by correlated, spin depolarized phases, interpreted as pairs of spin excitons. The correlated states are identified experimentally in few-electron lateral quantum dots using high source-drain voltage spectroscopy.
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