Spin coupling in engineered atomic structures

被引：633

作者：

Hirjibehedin, CF ^{[1
]}

Lutz, CP ^{[1
]}

Heinrich, AJ ^{[1
]}

机构：

[1] IBM Corp, Almaden Res Ctr, Div Res, San Jose, CA 95120 USA

来源：

SCIENCE | 2006年 / 312卷 / 5776期

关键词：

D O I：

10.1126/science.1125398

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We used a scanning tunneling microscope to probe the interactions between spins in individual atomic-scale magnetic structures. Linear chains of 1 to 10 manganese atoms were assembled one atom at a time on a thin insulating layer, and the spin excitation spectra of these structures were measured with inelastic electron tunneling spectroscopy. We observed excitations of the coupled atomic spins that can change both the total spin and its orientation. Comparison with a model spin-interaction Hamiltonian yielded the collective spin configuration and the strength of the coupling between the atomic spins.

引用

页码：1021 / 1024

页数：4

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