title: Curved-lattice epitaxial growth of In(x)Al(1-x)N nanospirals with tailored chirality.
abstract: Chirality, tailored by external morphology and internal composition, has been realized by controlled curved-lattice epitaxial growth of In(x)Al(1-x)N nanospirals. The curved morphology of the spiral segments is a result of a lateral compositional gradient while maintaining a preferred crystallographic growth direction, implying a lateral gradient in optical properties. Individual nanospirals show an asymmetric core-shell structure with curved basal planes. Mueller matrix spectroscopic ellipsometry shows that the tailored chirality is manifested in the polarization state of light reflected off the nanospirals.
authors.affiliation: Department of Physics, Chemistry, and Biology (IFM), Linköping University , 581 83 Linköping, Sweden.
authors.forename: Ching-Lien
authors.initials: CL
authors.lastname: Hsiao
authors.forename: Roger
authors.initials: R
authors.lastname: Magnusson
authors.forename: Justinas
authors.initials: J
authors.lastname: Palisaitis
authors.forename: Per
authors.initials: P
authors.lastname: Sandström
authors.forename: Per O Å
authors.initials: PO
authors.lastname: Persson
authors.forename: Sergiy
authors.initials: S
authors.lastname: Valyukh
authors.forename: Lars
authors.initials: L
authors.lastname: Hultman
authors.forename: Kenneth
authors.initials: K
authors.lastname: Järrendahl
authors.forename: Jens
authors.initials: J
authors.lastname: Birch
mesh_terms: D017607:Aluminum Compounds / Q000737:chemistry*; D003460:Crystallization; D007204:Indium / Q000737:chemistry*; D053758:Nanoparticles / Q000737:chemistry*
chemical_list: D017607:Aluminum Compounds; D007204:Indium; C052045:aluminum nitride; C513701:indium nitride
keywords: CLEG; GLAD; InAlN; chirality; nanospirals; sputtering