We investigate theoretically the spin-spin interaction of two-electrons in vertically coupled QDs as a function of the angle between magnetic field and growth axis. Our numerical approach is based on a real-space description of single-particle states in realistic samples and exact diagonalization of carrier-carrier Coulomb interaction. In particular, the effect of the in-plane field component on tunneling and, therefore, spin-spin interaction will be discussed; the singlet-triplet phase diagram as a function of the field strength and direction is drawn.

Spin-spin interaction in artificial molecules with in-plane magnetic field / Bellucci, D; Rontania, M; Goldoni, Guido; Troiani, F; Molinari, Elisa. - In: PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES. - ISSN 1386-9477. - STAMPA. - 22:(2004), pp. 482-485. [10.1016/j.physe.2003.12.050]

Spin-spin interaction in artificial molecules with in-plane magnetic field

Bellucci D;GOLDONI, Guido;MOLINARI, Elisa
2004

Abstract

We investigate theoretically the spin-spin interaction of two-electrons in vertically coupled QDs as a function of the angle between magnetic field and growth axis. Our numerical approach is based on a real-space description of single-particle states in realistic samples and exact diagonalization of carrier-carrier Coulomb interaction. In particular, the effect of the in-plane field component on tunneling and, therefore, spin-spin interaction will be discussed; the singlet-triplet phase diagram as a function of the field strength and direction is drawn.
2004
22
482
485
Spin-spin interaction in artificial molecules with in-plane magnetic field / Bellucci, D; Rontania, M; Goldoni, Guido; Troiani, F; Molinari, Elisa. - In: PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES. - ISSN 1386-9477. - STAMPA. - 22:(2004), pp. 482-485. [10.1016/j.physe.2003.12.050]
Bellucci, D; Rontania, M; Goldoni, Guido; Troiani, F; Molinari, Elisa
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/4499
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