Effect of long-range correlation on the metal-insulator transition in a disordered molecular crystal
2006 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, Vol. 74, no 23Article in journal (Refereed) Published
Localization lengths of the electronic states in a disordered two-dimensional system, resembling highly anisotropic molecular crystals such as pentacene, have been calculated numerically using the transfer matrix method. The disorder is based on a model with small random fluctuations of induced molecular dipole moments which give rise to long-range correlated disorder in the on-site energies as well as a coupling between the on-site energies and the intermolecular interactions. Our calculations show that molecular crystals such as pentacene can exhibit states with very long localization lengths with a possibility to reach a truly metallic state. © 2006 The American Physical Society.
Place, publisher, year, edition, pages
2006. Vol. 74, no 23
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-50037DOI: 10.1103/PhysRevB.74.235403OAI: oai:DiVA.org:liu-50037DiVA: diva2:270933