Self-organized one-dimensional electron systems on a low-symmetry oxide surface

被引：5

作者：

Razaznejad, B ^{[1
]}

Ruberto, C

Hyldgaard, P

Lundqvist, BI

机构：

[1] Chalmers Univ Technol, Dept Appl Phys, SE-41296 Gothenburg, Sweden

[2] Univ Gothenburg, SE-41296 Gothenburg, Sweden

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.90.236803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new one-dimensional electron gas, metallic over a temperature range of 1-800 K, is predicted on the kappa-Al2O3(00 (1) over bar) surface by means of density-functional theory (DFT) calculations. The robustness against the Peierls instability is tested using a tight-binding model with DFT-calculated parameters. The critical transition temperature T-c is shown to be smaller than 1 K. The low value of T-c makes this system suited for studying Luttinger-liquid (LL) behavior. For future experiments, the LL parameters are estimated, yielding a high electrical conductivity.

引用

页数：4

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