“…They reported that the homologous compound is a layered structure, consisting of In O layers interleaved with m layers of ZnO. Recently, the present authors successfully synthesized a series of homologous compounds, InMO (ZnO) K (M"In, Fe, Ga, and Al; m"integer) (3)(4)(5)(6). We proposed a structure model different from that of Kasper, where the structure is built up of a succession of InO\ (In-O layer) and MZn K O> K> (M/Zn-O layer) layers along the c axis.…”