Physics of interface: Mott insulator barrier sandwiched between two metallic planes
Strongly Correlated Electrons
2011-03-22 v3
Abstract
We consider a heterostructure of a metal and a barrier with onsite correlation at half filling using unrestricted Hartree Fock. We find that above a certain value of correlation strength in the barrier planes, the system is a Mott insulator, while below this value the system still behaves like a gapless insulator. The energy spectrum is found to be very novel with the presence of multiple gaps. Thus the system remains non metallic for any finite value of correlation.
Keywords
Cite
@article{arxiv.1003.4642,
title = {Physics of interface: Mott insulator barrier sandwiched between two metallic planes},
author = {Sanjay Gupta and Tribikram Gupta},
journal= {arXiv preprint arXiv:1003.4642},
year = {2011}
}
Comments
4 pages, 14 figures