Contains the keyword permeability

Tassin P, Koschny T, Soukoulis C. Effective material parameter retrieval for thin sheets: Theory and application to graphene, thin silver films, and single-layer metamaterials. Physica B. 2012;407:4062-5. Abstract

Zou YH, Tassin P, Koschny T, Soukoulis CM. Interaction between graphene and metamaterials: split rings vs. wire pairs. Opt Express. 2012;20:12198-204. Abstract

Wong T, Suzuki K, Gibson M, Ishikawa K, Aoki K, Jones LL. Hydrogen permeation behavior of multifilamentary Cu-Nb superconducting composites. Scripta Materialia. 2010;62:582-5. Abstract

Economou EN, Kafesaki M, Soukoulis CM, Koschny T. The Fourth Quadrant in the epsilon, mu Plane: A New Frontier in Optics. Journal of Computational and Theoretical Nanoscience. 2009;6:1827-36. Abstract

Soukoulis CM, Linden S, Wegener M. Negative refractive index at optical wavelengths. Science. 2007;315:47-9. Abstract