The conclusion that metamaterials could have negative mass is a
consequence of improper constitutive characterisation
The conclusion that metamaterials could have negative mass is a
consequence of improper constitutive characterisation
The concept of "effective mass" is frequently used for the simplification of complex lumped parameter systems (discrete dynamical systems) as well as materials that have complicated microstructural features. From the perspective of wave propagation, it is claimed that for some bodies described as metamaterials, the corresponding "effective mass" can be …