Ab initio electronic structure calculations for Mn linear chains deposited on CuN/Cu(001) surfaces

被引：6

作者：

Andrea Barral, Maria ^{[1
]}

Weht, Ruben

Lozano, Gustavo

Maria Llois, Ana

机构：

[1] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis Juan Jose Giambiagi, RA-1428 Buenos Aires, DF, Argentina

[2] Comis Nacl Energia Atom, Dept Fis, RA-1429 Buenos Aires, DF, Argentina

来源：

PHYSICA B-CONDENSED MATTER | 2007年 / 398卷 / 02期

关键词：

Mn chains; magnetic coupling; electronic structure; STM;

D O I：

10.1016/j.physb.2007.04.093

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In a recent experiment, scanning tunneling microscopy has been used to obtain a direct probe of the magnetic interaction in linear manganese chains arranged by atomic manipulation on thin insulating copper nitride islands grown on Cu(0 0 1). The local spin excitation spectra of these chains have been measured with inelastic electron tunneling spectroscopy. Analyzing the spectroscopic results with a Heisenberg Hamiltonian the interatomic coupling strength within the chains has been obtained. It has been found that the coupling strength depends on the deposition sites of the Mn atoms on the islands. In this contribution, we perform ab initio calculations for different arrangements of infinite Mn chains on CuN in order to understand the influence of the environment on the value of the magnetic interactions. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：369 / 371

页数：3

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