Lifetimes of image-potential states on Cu(100) and Ag(100) measured by femtosecond time-resolved two-photon photoemission

被引：137

作者：

Shumay, IL ^{[1
]}

Hofer, U

Thomann, U

Wallauer, W

Fauster, T

机构：

[1] Max Planck Inst Quantenopt, D-85740 Garching, Germany

[2] Univ Erlangen Nurnberg, Lehrstuhl Festkorperphys, D-91058 Erlangen, Germany

[3] Tech Univ Munich, Dept Phys, D-85747 Garching, Germany

[4] Max Planck Inst Plasmaphys, D-85740 Garching, Germany

来源：

PHYSICAL REVIEW B | 1998年 / 58卷 / 20期

关键词：

D O I：

10.1103/PhysRevB.58.13974

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report time-resolved studies of image-potential stales on Cu(100) and Ag(100). Femtosecond ultraviolet-pump and infrared-probe techniques combined with two-photon photoemission have been used to measure relaxation dynamics of n = 1, 2, and 3 image-potential states. We found the lifetimes of these states on Cu(100) at room temperature to be 40+/-6, 120+/-15, and 300+/-20 fs, respectively. The corresponding values for Ag(100) are 55+/-5, 160+/-10, and 360+/-15 fs. [S0163-1829(98)06643-0].

引用

页码：13974 / 13981

页数：8

共 27 条

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