title: Chemically induced magnetism in atomically precise gold clusters.
abstract: Comparative theoretical and experimental investigations are reported into chemically induced magnetism in atomically-precise, ligand-stabilized gold clusters Au25 , Au38 and Au55 . The results indicate that [Au25 (PPh3 )10 (SC12 H25 )5 Cl2 ](2+) and Au38 (SC12 H25 )24 are diamagnetic, Au25 (SC2 H4 Ph)18 is paramagnetic, and Au55 (PPh3 )12 Cl6 , is ferromagnetic at room temperature. Understanding the magnetic properties resulting from quantum size effects in such atomically precise gold clusters could lead to new fundamental discoveries and applications.
authors.affiliation: Center for Advanced Microstructures and Devices (CAMD), Louisiana State University Baton Rouge, LA 70806, USA Center for Atomic-Level Catalyst Design, #324, Cain Department of Chemical Engineering Louisiana State University, Baton Rouge, LA, 70803, USA.
authors.forename: Katla Sai
authors.initials: KS
authors.lastname: Krishna
authors.forename: Pilarisetty
authors.initials: P
authors.lastname: Tarakeshwar
authors.forename: Vladimiro
authors.initials: V
authors.lastname: Mujica
authors.forename: Challa S S R
authors.initials: CS
authors.lastname: Kumar
keywords: Atomically-precise gold clusters; DFT calculations; SQUID; magnetism; surface magnetism