Two-dimensional atom-phonon coupling model for spin conversion: role of metastable statesJ. A. Nasser, S. Topçu, L. Chassagne, M. Wakim, B. Bennali, J. Linares and Y. AlayliEur. Phys. J. B, 83 2 (2011) 115-132DOI: https://doi.org/10.1140/epjb/e2011-10985-4