Correlated conductance through a lattice of quantum dots: Metal to antiferromagnetic insulator transition
- 15 January 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 55 (3) , 1578-1581
- https://doi.org/10.1103/physrevb.55.1578
Abstract
The recursive Green's function and temperature Kubo formula are used to investigate the conductance quantization and the behavior of resonant tunneling through a finite lattice of quantum dots at low temperatures. A metal to antiferromagnetic insulator transition, which is driven by strong Hubbard interaction, is found around the half filling in the quantum dot lattice. Our numerical results explain that the Mott-insulator state is caused by the antiferromagnetic spin density wave.Keywords
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