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Effect of long-range correlation on the metal-insulator transition in a disordered molecular crystal
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Computational Physics .
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Computational Physics .
2006 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 74, no 23Article in journal (Refereed) Published
Abstract [en]

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
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Engineering and Technology
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URN: urn:nbn:se:liu:diva-50037DOI: 10.1103/PhysRevB.74.235403OAI: oai:DiVA.org:liu-50037DiVA: diva2:270933
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-12

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Unge, MikaelStafström, Sven

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