title: Identifying charge states of molecules with spin-flip spectroscopy.
abstract: The charge states of single molecular magnetic chains were manipulated with a scanning tunneling microscope and identified by spin-flip inelastic tunneling spectroscopy. We show that the charged and neutral states have different spin structures and therefore exhibit different features associated with the spin-flip processes in tunneling spectra. The experiment demonstrates a general approach for detecting the charge states at the nanometer scale in a more straightforward manner than using indirect information.
authors.affiliation: Key Laboratory for Atomic and Molecular Nanoscience, Department of Physics, Tsinghua University, Beijing 100084, China.
authors.forename: Ying-Shuang
authors.initials: YS
authors.lastname: Fu
authors.forename: Tong
authors.initials: T
authors.lastname: Zhang
authors.forename: Shuai-Hua
authors.initials: SH
authors.lastname: Ji
authors.forename: Xi
authors.initials: X
authors.lastname: Chen
authors.forename: Xu-Cun
authors.initials: XC
authors.lastname: Ma
authors.forename: Jin-Feng
authors.initials: JF
authors.lastname: Jia
authors.forename: Qi-Kun
authors.initials: QK
authors.lastname: Xue