Spin dynamics of an ultra-small nanoscale molecular magnet

Nanoscale Research Letters

卷:2

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

DOI  :  

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown