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

Author

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

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. Copyright Springer-Verlag Berlin/Heidelberg 2003

Suggested Citation

  • S. Carretta & P. Santini & E. Liviotti & N. Magnani & T. Guidi & R. Caciuffo & G. Amoretti, 2003. "Macroscopic evidence of quantum coherent oscillations of the total spin in the Mn-[ $\mathsf{3\times3}$ ] molecular nanomagnet," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 36(2), pages 169-173, November.
    • Handle: RePEc:spr:eurphb:v:36:y:2003:i:2:p:169-173
    DOI: 10.1140/epjb/e2003-00331-0
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