title: Metallic glass nanostructures of tunable shape and composition.
abstract: Metals of hybrid nano-/microstructures are of broad technological and fundamental interests. Manipulation of shape and composition on the nanoscale, however, is challenging, especially for multicomponent alloys such as metallic glasses. Although top-down approaches have demonstrated nanomoulding, they are limited to very few alloy systems. Here we report a facile method to synthesize metallic glass nanoarchitectures that can be applied to a broad range of glass-forming alloys. This strategy, using multitarget carousel oblique angle deposition, offers the opportunity to achieve control over size, shape and composition of complex alloys at the nanoscale. As a consequence, nanostructures of programmable three-dimensional shapes and tunable compositions are realized on wafer scale for metallic glasses including the marginal glass formers. Realizing nanostructures in a wide compositional range allows chemistry optimization for technological usage of metallic glass nanostructures, and also enables the fundamental study on size, composition and fabrication dependences of metallic glass properties.
authors.affiliation: Center for Research on Interface and Surface Phenomena, Yale University, New Haven, Connecticut 06520, USA.|Department of Mechanical Engineering and Materials Science, Yale University, New Haven, Connecticut 06520, USA.
authors.forename: Yanhui
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Center for Research on Interface and Surface Phenomena, Yale University, New Haven, Connecticut 06520, USA.|Department of Mechanical Engineering and Materials Science, Yale University, New Haven, Connecticut 06520, USA.
authors.forename: Jingbei
authors.initials: J
authors.lastname: Liu
authors.affiliation: Center for Research on Interface and Surface Phenomena, Yale University, New Haven, Connecticut 06520, USA.|Department of Mechanical Engineering and Materials Science, Yale University, New Haven, Connecticut 06520, USA.
authors.forename: Sungwoo
authors.initials: S
authors.lastname: Sohn
authors.affiliation: Center for Research on Interface and Surface Phenomena, Yale University, New Haven, Connecticut 06520, USA.|Department of Mechanical Engineering and Materials Science, Yale University, New Haven, Connecticut 06520, USA.
authors.forename: Yanglin
authors.initials: Y
authors.lastname: Li
authors.affiliation: Center for Research on Interface and Surface Phenomena, Yale University, New Haven, Connecticut 06520, USA.|Department of Mechanical Engineering and Materials Science, Yale University, New Haven, Connecticut 06520, USA.|Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, USA.
authors.forename: Judy J
authors.initials: JJ
authors.lastname: Cha
authors.affiliation: Center for Research on Interface and Surface Phenomena, Yale University, New Haven, Connecticut 06520, USA.|Department of Mechanical Engineering and Materials Science, Yale University, New Haven, Connecticut 06520, USA.
authors.forename: Jan
authors.initials: J
authors.lastname: Schroers