Localization of large polarons in the disordered Holstein model

Journal article

We solve the disordered Holstein model via the density-matrix renormalization group method to investigate the combined roles of electron-phonon coupling and disorder on the localization of a single charge or exciton. The parameter regimes chosen, namely the adiabatic regime, ω/4t0=ω′<1, and the large polaron regime, λ<1, are applicable to most conjugated polymers. We show that as a consequence of the polaron effective mass diverging in the adiabatic limit (defined as ω′→0 subject to fix...

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Authors: Tozer, O; Barford, W

• Publication status: Published
• Publisher: American Physical Society
• Journal: Physical Review B
• Volume: 89
• Issue: 15
• Publication date: 2014-04-28
• DOI: 10.1103/PhysRevB.89.155434
• EISSN: 1550-235X
• ISSN: 1098-0121
• Language: English