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Nanoscale Research Letters

, 2:168

First Online: 06 March 2007Received: 19 December 2006Accepted: 13 February 2007

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.

KeywordsSpin dynamics Nanoscale molecular magnetism Time-dependent spin autocorrelation function Exchange interaction Biquadratic exchange interaction 75.10.Hk 75.50.Xx  Download fulltext PDF



Autor: Orion Ciftja

Fuente: https://link.springer.com/







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