Tuning the period of elastic MnAs/GaAs(001) alpha-beta pattern by Fe deposition

Franck Vidal (1, 2) , C. Spezzani , R. Breitwieser , M. Marangolo (2) , Mahmoud Eddrief (2) , M. Sacchi , Victor H. Etgens (2)

1 LPPI - Laboratoire de Physico-chimie des Polymères et des Interfaces
2 INSP - Institut des Nanosciences de Paris

The alpha-beta elastic striped pattern of MnAs/GaAs(001) is shown to be perturbed by Fe overlayer growth. After nanometric Fe thin film deposition, the elastic pattern is still present in the 10-45 degrees C temperature range, but the period of the pattern increases by up to 40% for MnAs epilayers 70 to 400 nm thick. This observation can be interpreted within a simple model calculation of the pattern elastic energy, providing quantitative agreement with the experimental results. (C) 2010 American Institute of Physics. [doi:10.1063/1.3531759]

Domaines: Matière Condensée [cond-mat]

Franck Vidal, C. Spezzani, R. Breitwieser, M. Marangolo, Mahmoud Eddrief, et al.. Tuning the period of elastic MnAs/GaAs(001) alpha-beta pattern by Fe deposition. Applied Physics Letters, 2010, 97 (25), pp.251914. ⟨10.1063/1.3531759⟩. ⟨hal-01240955⟩