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Macroscopic evidence of quantum coherent oscillations of the total spin in the Mn-[ \(\mathsf{3\times3}\)] molecular nanomagnet

  • S. Carretta
  • P. Santini
  • E. Liviotti
  • N. Magnani
  • T. Guidi
  • R. Caciuffo
  • G. Amoretti
Article

Abstract.

Molecular nanomagnets, besides promising to open new frontiers in technology, have attracted huge interest in the scientific community because they can exhibit the phenomenon known as quantum tunnelling of the magnetization, i.e. coherent fluctuations of the direction of the total spin vector. In this paper we study a different quantum phenomenon involving fluctuations of the magnitude of the total spin vector. These fluctuations are related to the mixing between states with different spin quantum number, and imply new macroscopic effects, which we theoretically investigated in the Mn-[ \(\mathsf{3\times3}\) grid.

Keywords

Scientific Community Quantum Number Total Spin Spin Quantum Quantum Tunnelling 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  • S. Carretta
    • 1
  • P. Santini
    • 1
  • E. Liviotti
    • 1
  • N. Magnani
    • 1
  • T. Guidi
    • 2
  • R. Caciuffo
    • 2
  • G. Amoretti
    • 1
  1. 1.Istituto Nazionale per la Fisica della Materia, Dipartimento di FisicaUniversitá di ParmaParmaItaly
  2. 2.Istituto Nazionale per la Fisica della MateriaUniversitá Politecnica delle MarcheAnconaItaly

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