Chemically induced magnetism in atomically precise gold clusters

Katla Sai Krishna, Pilarisetty Tarakeshwar, Vladimiro Mujica, Challa S.S.R. Kumar

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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(SC 12H25)5Cl2]2+ and Au 38(SC12H25)24 are diamagnetic, Au25(SC2H4Ph)18 is paramagnetic, and Au55(PPh3)12Cl6, 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.

Original languageEnglish
Pages (from-to)907-911
Number of pages5
JournalSmall
Volume10
Issue number5
DOIs
Publication statusPublished - Mar 12 2014

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Keywords

  • Atomically-precise gold clusters
  • DFT calculations
  • SQUID
  • magnetism
  • surface magnetism

ASJC Scopus subject areas

  • Biotechnology
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)

Cite this

Krishna, K. S., Tarakeshwar, P., Mujica, V., & Kumar, C. S. S. R. (2014). Chemically induced magnetism in atomically precise gold clusters. Small, 10(5), 907-911. https://doi.org/10.1002/smll.201302393