Hartree-Fock Simulation of Persistent Current in Rings with Single Scatterer

• Authors: R. Németh , M. Moško
• Languages of publication: EN

Abstracts

EN

Using the self-consistent Hartree-Fock approximation for spinless electrons at zero temperature, we calculate the persistent current of the interacting electron gas in a one-dimensional ring containing a singleδ barrier. Our results agree with correlated models like the Luttinger liquid model and lattice model with nearest-neighbor interaction. The persistent current is a sine-like function of magnetic flux. It decays with the ring length (L) faster than L^{-1} and eventually like L^{-α-1}, where α>0 is universal.

Keywords

EN

73.23.-b; 73.61.Ey

Discipline

• 73.61.Ey: III-V semiconductors
• 73.23.-b: Electronic transport in mesoscopic systems

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2005
• Volume: 108
• Issue: 5
• Pages: 795-801

Dates

published

2005-11

received

2005-06-04

Contributors

author

R. Németh

• Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

author

M. Moško

• Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

References

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Identifiers

DOI

10.12693/APhysPolA.108.795