Origin of tunneling lineshape trends for Kondo states of Co adatoms on coinage metal surfaces
Origin of tunneling lineshape trends for Kondo states of Co adatoms on coinage metal surfaces
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造币金属表面Co吸附原子近藤态隧道线形趋势的起源
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
E. Carter
中科院分区：
文献类型：
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作者：
S. Sharifzadeh;P. Huang;E. Carter
利用嵌入关联波函数（ECW）理论研究了Co原子吸附在Ag（111）和Ag（100）表面形成的Kondo态。包含吸附原子的团簇用CW理论描述，而扩展晶体的影响通过嵌入势包括在内。预测的钴d-电子结构，结合早期的预测，为钴铜表面上，解释了不同的隧道行为观察到的扫描隧道显微镜（STM）的钴吸附在不同的钴金属表面。
Embedded correlated wavefunction (ECW) theory is used to characterize the Kondo states formed by Co atoms adsorbed on Ag(111) and Ag(100). Clusters containing the adatom are described with CW theory, while effects of the extended crystal are included via an embedding potential. The predicted Co d-electronic structure, combined with earlier predictions for Co on Cu surfaces, explains the different tunneling behavior observed with the scanning tunneling microscope (STM) for Co adsorbed on different coinage metal surfaces.