Structural and electronic properties of ultrathin films of Gd, Tb, Dy, Ho, and Er

Abstract
Single-crystal ultrathin films of Gd, Tb, Dy, Ho, and Er were grown epitaxially on W{110} in ultrahigh vacuum. Comparison with single-crystal data available for Tb shows that while the purity of the films may be higher, the crystallinity, i.e., the long-range order, is less well developed in the films than in bulk single crystals.