Local Control of Single Atom Magnetocrystalline Anisotropy

被引：98

作者：

Bryant, B. ^{[1
]}

Spinelli, A. ^{[1
]}

Wagenaar, J. J. T. ^{[1
]}

Gerrits, M. ^{[1
]}

Otte, A. F. ^{[1
]}

机构：

[1] Delft Univ Technol, Kavli Inst Nanosci, Dept Quantum Nanosci, NL-2628 CJ Delft, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 12期

关键词：

MAGNETIC-ANISOTROPY; SPIN; SCALE;

D O I：

10.1103/PhysRevLett.111.127203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Individual Fe atoms on a Cu2N/Cu(100) surface exhibit strong magnetic anisotropy due to the crystal field. We show that we can controllably enhance or reduce this anisotropy by adjusting the relative position of a second nearby Fe atom, with atomic precision, in a low-temperature scanning tunneling microscope. Local inelastic electron tunneling spectroscopy, combined with a qualitative first-principles model, reveal that the change in uniaxial anisotropy is driven by local strain due to the presence of the second Fe atom.

引用

页数：5

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