Tailoring thermal conductivity by engineering compositional gradients in Si1-x Ge (x) superlattices - Ferrando-Villalba, P.; Lopeandia, A.; Xavier Alvarez, F.; Paul, B.; de Tomas, Carla Mercedes; Isabel Alonso, M.; Garriga, M.; Goni, A.; Santiso, J.; Garcia, G.; Rodriguez-Viejo, J. (Tsinghua University Press, 2015)