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Spin dynamics of an ultra-small nanoscale molecular magnet

Abstract

We present mathematical transformations which allow us to calculate the spin dynamics of an ultra-small nanoscale molecular magnet consisting of a dimer system of classical (high) Heisenberg spins. We derive exact analytic expressions (in integral form) for the time-dependent spin autocorrelation function and several other quantities. The properties of the time-dependent spin autocorrelation function in terms of various coupling parameters and temperature are discussed in detail.

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Correspondence to Orion Ciftja.

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Ciftja, O. Spin dynamics of an ultra-small nanoscale molecular magnet. Nanoscale Res Lett 2, 168 (2007). https://doi.org/10.1007/s11671-007-9049-5

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  • DOI: https://doi.org/10.1007/s11671-007-9049-5

Keywords

  • Spin dynamics
  • Nanoscale molecular magnetism
  • Time-dependent spin autocorrelation function
  • Exchange interaction
  • Biquadratic exchange interaction
  • 75.10.Hk
  • 75.50.Xx