Spin and orbital magnetization in self-assembled Co clusters on Au(111)

被引：123

作者：

Dürr, HA ^{[1
]}

Dhesi, SS

Dudzik, E

Knabben, D

van der Laan, G

Goedkoop, JB

Hillebrecht, FU

机构：

[1] SERC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England

[2] Univ Dusseldorf, Inst Angew Phys, D-40225 Dusseldorf, Germany

[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.59.R701

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We show that superparamagnetic Co clusters supported on a Au(lll) surface exhibit a strong variation in perpendicular magnetic anisotropy with cluster size, which can be ascribed to electron localization at the perimeter of the clusters. The reduced dimensionality of such sites leads to drastic changes in the 3d electronic structure resulting in an increased orbital magnetic moment and a temperature-dependent 3d band occupancy. [S0163-1829(99)51202-2].

引用

页码：R701 / R704

页数：4

共 16 条

[1] SURFACE EFFECTS IN METALLIC IRON NANOPARTICLES [J].

BODKER, F ;

MORUP, S ;

LINDEROTH, S .

PHYSICAL REVIEW LETTERS, 1994, 72 (02) :282-285

[2] TIGHT-BINDING APPROACH TO THE ORBITAL MAGNETIC-MOMENT AND MAGNETOCRYSTALLINE ANISOTROPY OF TRANSITION-METAL MONOLAYERS [J].

BRUNO, P .

PHYSICAL REVIEW B, 1989, 39 (01) :865-868

[3] Absolute helicity-dependent photoabsorption cross sections of Fe thin films and quantitative evaluation of magnetic-moment determination [J].

Chakarian, V ;

Idzerda, YU ;

Chen, CT .

PHYSICAL REVIEW B, 1998, 57 (09) :5312-5315

[4] EXPERIMENTAL CONFIRMATION OF THE X-RAY MAGNETIC CIRCULAR-DICHROISM SUM-RULES FOR IRON AND COBALT [J].

CHEN, CT ;

IDZERDA, YU ;

LIN, HJ ;

SMITH, NV ;

MEIGS, G ;

CHABAN, E ;

HO, GH ;

PELLEGRIN, E ;

SETTE, F .

PHYSICAL REVIEW LETTERS, 1995, 75 (01) :152-155

[5] Element-specific magnetic anisotropy determined by transverse magnetic circular x-ray dichroism [J].

Durr, HA ;

Guo, GY ;

vanderLaan, G ;

Lee, J ;

Lauhoff, G ;

Bland, JAC .

SCIENCE, 1997, 277 (5323) :213-215

[6] ORBITAL MAGNETISM IN FE, CO, AND NI [J].

ERIKSSON, O ;

JOHANSSON, B ;

ALBERS, RC ;

BORING, AM ;

BROOKS, MSS .

PHYSICAL REVIEW B, 1990, 42 (04) :2707-2710

[7] Symmetry-induced magnetic anisotropy in Fe films grown on stepped Ag(001) [J].

Kawakami, RK ;

EscorciaAparicio, EJ ;

Qiu, ZQ .

PHYSICAL REVIEW LETTERS, 1996, 77 (12) :2570-2573

[8] ORBITAL AND SPIN SUM-RULES IN X-RAY MAGNETIC CIRCULAR-DICHROISM [J].

OBRIEN, WL ;

TONNER, BP .

PHYSICAL REVIEW B, 1994, 50 (17) :12672-12681

[9] Magnetization process of a nanometer-scale cobalt dots array formed on a reconstructed Au(111) surface [J].

Takeshita, H ;

Suzuki, Y ;

Akinaga, H ;

Mizutani, W ;

Ando, K ;

Katayama, T ;

Itoh, A ;

Tanaka, K .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1997, 165 (1-3) :38-41

[10] X-RAY CIRCULAR-DICHROISM AS A PROBE OF ORBITAL MAGNETIZATION [J].

THOLE, BT ;

CARRA, P ;

SETTE, F ;

VANDERLAAN, G .

PHYSICAL REVIEW LETTERS, 1992, 68 (12) :1943-1946

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