Adsorbate-Promoted Tunneling-Electron-Induced Local Faceting of D/Pd{110}-(1x2)

被引：4

作者：

Kurland, Adam R. ^{[1
,2
]}

Han, Patrick ^{[1
,2
]}

Thomas, John C. ^{[1
,2
]}

Giordano, Andrea N. ^{[1
,2
]}

Weiss, Paul S. ^{[1
,2
,3
,4
,5
]}

机构：

[1] Penn State Univ, Dept Chem, University Pk, PA 16802 USA

[2] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[3] Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA

[4] Univ Calif Los Angeles, Dept Chem, Los Angeles, CA 90095 USA

[5] Univ Calif Los Angeles, Dept Biochem, Los Angeles, CA 90095 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2010年 / 1卷 / 15期

基金：

美国国家科学基金会;

关键词：

SUBSTRATE-MEDIATED INTERACTIONS; ULTRATHIN METAL-FILMS; NEAR-SURFACE ALLOYS; HYDROGEN ADSORPTION; INDUCED RECONSTRUCTION; FLEXIBLE SURFACE; PD(110) SURFACE; MOLECULAR-LEVEL; MICROSCOPY; STM;

D O I：

10.1021/jz100640y

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have utilized tunneling electrons and thiophene adsorption to draw deuterium (D) from within the single-crystal bulk beneath Pd{110} up to subsurface adsorption sites. We found local faceting induced by this process, and determined the energy threshold of drawing bulk D to subsurface sites to be 0.38 +/- 0.02 eV. We show that these facets propagate along the < 1 (1) over bar0 > direction of the substrate, and that Pd{110) adopts the (1 x 1) surface reconstruction on the induced facets, yet maintains the paired row (1 x 2) structure on unaffected regions. After producing subsurface D, the facet plane tilts 3.2 +/- 0.8 degrees off the substrate plane.

引用

页码：2288 / 2294

页数：7

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