Anisotropic spin splitting of the electron ground state in InAs quantum dots

Emmanuel Aubry (1) , C. Testelin (2) , Frédéric Bernardot (2) , M. Chamarro (2) , A. Lemaitre (3)

1 INSP - Institut des Nanosciences de Paris
2 INSP - Institut des Nanosciences de Paris
3 LPN - Laboratoire de photonique et de nanostructures

Photoinduced circular dichroism experiments in an oblique magnetic field allow measurements of Larmor precession frequencies, and so give a precise determination of the electron Lande g factor and its anisotropy in self-assembled InAs/GaAs quantum dots emitting at 1.32 eV. In good agreement with recent theoretical results, the authors measure parallel to g(perpendicular to)parallel to=0.397 +/- 0.003 and parallel to g(parallel to)parallel to=0.18 +/- 0.02. (c) 2007 American Institute of Physics.

Domaines: Matière Condensée [cond-mat]

Emmanuel Aubry, C. Testelin, Frédéric Bernardot, M. Chamarro, A. Lemaitre. Anisotropic spin splitting of the electron ground state in InAs quantum dots. Applied Physics Letters, 2007, 90 (24), pp.242113. ⟨10.1063/1.2748847⟩. ⟨hal-01284368⟩