large polaron

large polaron

[′lärj ′pō·lə‚rän]
(solid-state physics)
An electron in a crystal lattice together with the surrounding lattice deformation, for the case in which the deformation extends over many lattice sites so that the lattice can be treated as a continuum.
References in periodicals archive ?
Hence, various theoretical conductivity models were adopted such as electron tunneling (ET), correlated barrier hopping (CBH), small and large polaron tunneling (SPT and LPT) models.
Overlapping large polaron tunnelling (OLPT) model: In the OLPT model, the exponent s is temperature dependent.
where + and - signs correspond to hole and electron type of conductivity, [E.sub.s] is the activation energy for TEP, [alpha] is a constant and [alpha] < 1 suggests that the conductivity is small polaron hopping, whereas for [alpha] > 2, conductivity is due to large polarons, and k is the Boltzmann constant.