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Revealing the Atomic Site-Dependent g Factor within a Single Magnetic Molecule via the Extended Kondo Effect

Liwei Liu, Kai Yang, Yuhang Jiang, Boqun Song, Wende Xiao, Shiru Song, Shixuan Du, Min Ouyang, Werner A. Hofer, Antonio H. Castro Neto, and Hong-Jun Gao
Phys. Rev. Lett. 114, 126601 – Published 24 March 2015
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Abstract

The site-dependent g factor of a single magnetic molecule, with intramolecular resolution, is demonstrated for the first time by low-temperature, high-magnetic-field scanning tunneling microscopy of dehydrogenated Mn-phthalocyanine molecules on Au(111). This is achieved by exploring the magnetic-field dependence of the extended Kondo effect at different atomic sites of the molecule. Importantly, an inhomogeneous distribution of the g factor inside a single molecule is revealed. Our results open up a new route to access local spin properties within a single molecule.

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  • Received 29 September 2014

DOI:https://doi.org/10.1103/PhysRevLett.114.126601

© 2015 American Physical Society

Authors & Affiliations

Liwei Liu1, Kai Yang1, Yuhang Jiang1, Boqun Song1, Wende Xiao1, Shiru Song1, Shixuan Du1, Min Ouyang2, Werner A. Hofer3, Antonio H. Castro Neto4, and Hong-Jun Gao1,*

  • 1Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100190, China
  • 2Department of Physics and Center for Nanophysics and Advanced Materials, University of Maryland, College Park, Maryland 20742, USA
  • 3School of Chemistry, Newcastle University, Newcastle, NE1 7RU United Kingdom
  • 4Graphene Research Centre, Department of Physics, National University of Singapore, 117542, Singapore

  • *hjgao@iphy.ac.cn

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Vol. 114, Iss. 12 — 27 March 2015

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