Bond-disordered chiral insulators, including SSH chains and vacancy-doped Kekulé graphene, can have a divergent static susceptibility with a finite quantum metric and zero dc conductivity, a regime the authors call superdielectric.
Resta, The insulating state of matter: a geometrical theory, The European Physical Journal B 79, 121–137 (2011)
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Superdielectrics: Disorder-induced perfect screening in insulators
Bond-disordered chiral insulators, including SSH chains and vacancy-doped Kekulé graphene, can have a divergent static susceptibility with a finite quantum metric and zero dc conductivity, a regime the authors call superdielectric.