Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/92316
Title: Variational energy band theory for polarons : mapping polaron structure with the Merrifield method
Authors: Brown, David W.
Zhao, Yang
Lindenberg, Katja
Keywords: DRNTU::Science::Physics::Atomic physics::Solid state physics
Issue Date: 1997
Source: Zhao, Y., Brown, D. W., & Lindenberg, K. (1997). Variational energy band theory for polarons: mapping polaron structure with the Merrifield method. Journal of chemical physics, 106(13), 5622-5630.
Series/Report no.: Journal of chemical physics
Abstract: In this paper we revisit from a contemporary perspective a classic problem of polaron theory following the variational approach originally taken by Merrifield. Polaron structure is represented by a variational surface giving the optimal values of the complete set of phonon amplitudes for every value of the joint exciton–phonon crystal momentum κ. Quantities such as complete ground state energy bands (all κ) and effective masses (κ=0) are obtained. The parameter space of the problem is mapped, with careful attention given to the self-trapping transition. Through this examination of the complete parameter space at all κ, it is found that the common notion of a sharp self-trapping phenomenon associated with κ=0 is a limiting aspect of a more general finite-κ phenomenon. The idea of polaron Wannier states is addressed briefly, and the properties of such states tied to characteristics of the polaron energy band. The successes and failures of the Merrifield method are assessed.
URI: https://hdl.handle.net/10356/92316
http://hdl.handle.net/10220/6731
DOI: 10.1063/1.473598
Rights: © 1997 AIP. This paper was published in Journal of Chemical Physics and is made available as an electronic reprint (preprint) with permission of American Institute of Physics. The paper can be found at: [Doi: http://dx.doi.org/10.1063/1.473598]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

SCOPUSTM   
Citations 10

45
Updated on Jan 19, 2023

Web of ScienceTM
Citations 10

46
Updated on Jan 19, 2023

Page view(s) 5

1,104
Updated on Jan 27, 2023

Download(s) 10

399
Updated on Jan 27, 2023

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.