Manipulating the Tomonaga-Luttinger exponent by electric field modulation
arXiv:1002.0054 · doi:10.1140/epjb/e2010-10698-2
Abstract
We establish a theoretical framework for artificial control of the power-law singularities in Tomonaga-Luttinger liquid states. The exponent governing the power-law behaviors is found to increase significantly with an increase in the amplitude of the periodic electric field modulation applied externally to the system. This field-induced shift in the exponent indicates the tunability of the transport properties of quasi-one-dimensional electron systems.
7 pages, 3 figures
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