Charge-Transfer Insulators

R. Avci and C. P. Flynn

Phys. Rev. Lett. 41, 428 – Published 7 August 1978

ABSTRACT

Resistivities of thin-film Cs-based alloys prepared by coevaporation at He temperature reveal charge transfer to high-valence impurities. Percolative transitions to new disordered insulating phases occur as the impurity content is increased. Metallic components of resistance exceeding 3×${10}^4$Ω are observed near the percolation thresholds.

• Received 5 June 1978

DOI:https://doi.org/10.1103/PhysRevLett.41.428

©1978 American Physical Society

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