Spin and charge response to magnetic frustration in strongly correlated itinerant electron systems - art. no. 132402

We investigate the effects of magnetic frustration on spin and charge dynam ics in strongly correlated itinerant electron systems by using the exact di agonalization technique. A Hubbard model with adjustable degree of magnetic frustration is constructed. Static and dynamic spin and charge correlation functions show different dependence on the degree of magnetic frustration in thr system. With increasing magnetic frustration, the spin and charge co rrelation function spectra become more sparse, indicating a decreased level of mixing of the spin and charge degrees of freedom or a partial spin-char ge separation.