Weakly correlated one-dimensional indium chains on Si(111)

被引：101

作者：

Cho, JH ^{[1
]}

Oh, DH

Kim, KS

Kleinman, L

机构：

[1] Univ Texas, Dept Phys, Austin, TX 78712 USA

[2] Pohang Univ Sci & Technol, Ctr Superfunct Mat, Pohang 790784, South Korea

来源：

PHYSICAL REVIEW B | 2001年 / 64卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.64.235302

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Quasi-one-dimensional (1D) metals often exhibit a broken symmetry state. Here our first-principles density-functional theory calculations show that quasi-1D indium chains on the Si(111)-(4x1) surface are stabilized with (4 x 2) or (8 x 2) symmetry by lattice distortions of the two zigzag indium rows composing the chain. The ground state is almost degenerate, consistent with recent experiments which indicate that several phases coexist at law temperature.

引用

页数：5

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