title: Epitaxial electrodeposition of Prussian blue thin films on single-crystal Au(110).
abstract: Epitaxial Prussian blue (PB) films are deposited electrochemically onto a Au(110) substrate. High-resolution X-ray diffraction shows that the PB films have a [111] out-of-plane orientation. The very large lattice mismatch of 148% is reduced to about 1% by the formation of (1 x 2)PB(111)[onemacr;10]//(6 x 5)Au(110)[onemacr;10] and (1 x 2)PB(111)[01onemacr;]//(6 x 5)Au(110)[onemacr;10] epitaxial relationships. Peaks in the cyclic voltammogram of PB on Au(110) are sharper than those on polycrystalline Au, consistent with higher structural order and a single out-of-plane orientation. The development of epitaxial films of PB and PB analogues will allow the measurement of the orientation-dependent properties of these molecular magnets. It will also open the door to the development of novel molecular spintronic devices, such as those which exhibit spin-dependent electron transfer.
authors.affiliation: Department of Chemistry and Graduate Center for Materials Research, University Missouri-Rolla, Rolla, Missouri 65409-1170, USA.
authors.forename: Shuji
authors.initials: S
authors.lastname: Nakanishi
authors.forename: Guotao
authors.initials: G
authors.lastname: Lu
authors.forename: Hiten M
authors.initials: HM
authors.lastname: Kothari
authors.forename: Eric W
authors.initials: EW
authors.lastname: Bohannan
authors.forename: Jay A
authors.initials: JA
authors.lastname: Switzer