Phase and energy relaxation in an antibonding surface state: Cs/Cu(111)

被引：141

作者：

Ogawa, S ^{[1
]}

Nagano, H ^{[1
]}

Petek, H ^{[1
]}

机构：

[1] Hitachi Ltd, Adv Res Lab, Hatoyama, Saitama 3500395, Japan

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.82.1931

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Electron dynamics induced by direct photoexcitation of the antibonding state on the Cs/Cu(111) surface are studied by interferometric time-resolved two-photon photoemission. Femtosecond resolution pump-probe correlation measurements indicate phase and energy decay, respectively, on 15 and 50 fs time scales for the Cs antibonding state at 33 K. Both the polarization and phase dynamics are nonexponential and strongly temperature dependent. The energy dependence of the antibonding state population dynamics is consistent with Cs photodesorption.

引用

页码：1931 / 1934

页数：4

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