Abstract
We theoretically investigate the effect of static disorder on the dynamics of photoexcited states in one-dimensional Mott insulators. We numerically calculate the time development of the state excited by a light pulse in the Pariser-Parr-Pople model, where disorder is introduced in the site energy and the transfer integral. In the weaker excitation case, the spin-charge coupling is induced by the disorder in the transfer integral. The effects of the disorder in the site energy on the spin-charge coupling are much weaker than those in the transfer integral. In the stronger excitation case, the spin and the charge degrees of freedom are coupled in the photoexcited states even in regular systems. The spin relaxations are enhanced by the disorders, and there are no significant differences in the effects of disorders on the spin relaxations between these two kinds of disorders.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
