title: Orientation-dependent local structural properties of Zn(1-x)Mg(x)O nanorods studied by extended X-ray absorption fine structure.
abstract: The orientation-dependent structural properties of Zn(1-x)Mg(x)O nanorods with different Mg concentrations were investigated quantitatively using polarization-dependent extended X-ray absorption fine structure (EXAFS) measurements at the Zn K edge. Vertically-aligned Zn(1-x)Mg(x)O nanorods were synthesized on Si substrates using catalyst free metal organic chemical vapor deposition. Polarization-dependent EXAFS measurements showed that Mg ions mainly occupied the Zn sites of the nanorods. EXAFS revealed that the distance between Zn-Mg pairs in all directions is - 0.2 angstroms shorter than that of Zn-Zn pairs and that there is a substantial amount of disorder in the Mg sites of the nanorods, independent of Mg concentrations.
authors.affiliation: Department of Physics Education, Institute of Fusion Science, Chonbuk National University, Jeonju 561-756, Korea.
authors.forename: E S
authors.initials: ES
authors.lastname: Jeong
authors.forename: Changin
authors.initials: C
authors.lastname: Park
authors.forename: Zhenlan
authors.initials: Z
authors.lastname: Jin
authors.forename: Jinkyoung
authors.initials: J
authors.lastname: Yoo
authors.forename: Gyu-Chul
authors.initials: GC
authors.lastname: Yi
authors.forename: S W
authors.initials: SW
authors.lastname: Han