Magnetic Anisotropy and Magnetization Dynamics of Individual Atoms and Clusters of Fe and Co on Pt(111)

被引：129

作者：

Balashov, T. ^{[1
]}

Schuh, T. ^{[1
]}

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

Ernst, A. ^{[2
]}

Ostanin, S. ^{[2
]}

Henk, J. ^{[2
]}

Mertig, I. ^{[2
,3
]}

Bruno, P. ^{[2
]}

Miyamachi, T. ^{[4
]}

Suga, S. ^{[4
]}

Wulfhekel, W. ^{[1
]}

机构：

[1] Univ Karlsruhe TH, Inst Phys, D-76131 Karlsruhe, Germany

[2] Max Planck Inst Mikrostrukturphys, D-06120 Halle, Germany

[3] Univ Halle Wittenberg, Inst Phys, D-06099 Halle, Germany

[4] Osaka Univ, Grad Sch Engn Sci, Suita, Osaka 565, Japan

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 25期

关键词：

SPECTROSCOPY;

D O I：

10.1103/PhysRevLett.102.257203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The recently discovered giant magnetic anisotropy of single magnetic Co atoms raises the hope of magnetic storage in small clusters. We present a joint experimental and theoretical study of the magnetic anisotropy and the spin dynamics of Fe and Co atoms, dimers, and trimers on Pt(111). Giant anisotropies of individual atoms and clusters as well as lifetimes of the excited states were determined with inelastic scanning tunneling spectroscopy. The short lifetimes due to hybridization-induced electron-electron scattering oppose the magnetic stability provided by the magnetic anisotropies.

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页数：4

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