TY - JOUR AB - Grain boundaries are known to reduce significantly the electrical dc conductivity of polycrystalline metallic materials. In this paper, we give a quantum mechanical calculation of the grain-boundary resistance based on the transfer-matrix approach. The results show an exponential decrease of the conductivity with respect to the number of grain boundaries per mean free path in accord with an empirical model proposed recently. DA - 1986 DO - 10.1103/PhysRevLett.56.2100 LA - eng IS - 19 M2 - 2100 PY - 1986 SN - 0031-9007 SP - 2100-2103 T2 - Physical review letters TI - Grain boundary resistance in polycrystalline metals UR - https://nbn-resolving.org/urn:nbn:de:0070-pub-17751589 Y2 - 2024-11-22T06:49:49 ER -