中国物理B ›› 2014, Vol. 23 ›› Issue (3): 38102-038102.doi: 10.1088/1674-1056/23/3/038102

所属专题: TOPICAL REVIEW — Magnetism, magnetic materials, and interdisciplinary research

• SPECIAL TOPIC --- Non-equilibrium phenomena in soft matters • 上一篇    下一篇

From self-assembly to quantum guiding:A review of magnetic atomic structures on noble metal surfaces

曹荣幸, 张孝谱, 缪冰锋, 孙亮, 吴镝, 游彪, 丁海峰   

  1. National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
  • 收稿日期:2013-12-04 出版日期:2014-03-15 发布日期:2014-03-15
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2010CB923401) and the National Natural Science Foundation of China (Grant Nos. 10974087, 11374145, 11304150, and 11023002).

From self-assembly to quantum guiding:A review of magnetic atomic structures on noble metal surfaces

Cao Rong-Xing (曹荣幸), Zhang Xiao-Pu (张孝谱), Miao Bing-Feng (缪冰锋), Sun Liang (孙亮), Wu Di (吴镝), You Biao (游彪), Ding Hai-Feng (丁海峰)   

  1. National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China
  • Received:2013-12-04 Online:2014-03-15 Published:2014-03-15
  • Contact: Ding Hai-Feng E-mail:hfding@nju.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2010CB923401) and the National Natural Science Foundation of China (Grant Nos. 10974087, 11374145, 11304150, and 11023002).

摘要: Recent advances in the study of magnetic atomic structures on noble metal surfaces are reviewed. These include onedimensional strings, two-dimensional hexagonal superlattices, and novel structures stabilized by quantum guiding. The combined techniques of low-temperature scanning tunneling microscopy, kinetic Monte Carlo simulations, and ab initio calculations reveal that surface-state-mediated adatom-step and adatom-adatom interactions are the driving forces for selfassembly of these structures. The formation conditions are further discussed by comparing various experimental systems and the kinetic Monte Carlo simulations. Using scanning tunneling spectroscopy and tight-binding calculations together, we reveal that the spectra of these well-ordered structures have characteristic peaks induced by electronic scattering processes of the atoms within the local environment. Moreover, it is demonstrated that quantum confinement by means of nano-size corrals has significant influence on adatom diffusion and self-assembly, leading to a quantum-guided self-assembly.

关键词: surface states, long-range interaction, self-assembly, quantum confinement

Abstract: Recent advances in the study of magnetic atomic structures on noble metal surfaces are reviewed. These include one-dimensional strings, two-dimensional hexagonal superlattices, and novel structures stabilized by quantum guiding. The combined techniques of low-temperature scanning tunneling microscopy, kinetic Monte Carlo simulations, and ab initio calculations reveal that surface-state-mediated adatom-step and adatom-adatom interactions are the driving forces for selfassembly of these structures. The formation conditions are further discussed by comparing various experimental systems and the kinetic Monte Carlo simulations. Using scanning tunneling spectroscopy and tight-binding calculations together, we reveal that the spectra of these well-ordered structures have characteristic peaks induced by electronic scattering processes of the atoms within the local environment. Moreover, it is demonstrated that quantum confinement by means of nano-size corrals has significant influence on adatom diffusion and self-assembly, leading to a quantum-guided self-assembly.

Key words: surface states, long-range interaction, self-assembly, quantum confinement

中图分类号:  (Nanoscale materials and structures: fabrication and characterization)

  • 81.07.-b
73.21.-b (Electron states and collective excitations in multilayers, quantum wells, mesoscopic, and nanoscale systems) 68.37.Ef (Scanning tunneling microscopy (including chemistry induced with STM)) 81.16.Dn (Self-assembly)