Anomalous decay of electronically stabilized lead mesas on Ni(111)

Tjeerd Rogier Johannes Bollmann, Raoul van Gastel, Henricus J.W. Zandvliet, Bene Poelsema

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Abstract

With their low surface free energy, lead films tend to wet surfaces. However, quantum size effects (QSE) often lead to islands with distinct preferred heights. We study thin lead films on Ni(111) using low energy electron microscopy and selected area low energy electron diffraction. Indeed, the grown lead mesas show distinct evidence for QSE’s. At about 526 K metastable mesas reshape into hemispheres within milliseconds, driven by a huge reduction in interfacial free energy. The underlying diffusion rate is many orders of magnitude faster than expected for lead on bulk lead
Original languageEnglish
Pages (from-to)136103-1-136103-5
Number of pages5
JournalPhysical review letters
Volume107
Issue number13
DOIs
Publication statusPublished - 2011

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mesas
decay
free energy
hemispheres
electron microscopy
electron diffraction
energy

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Bollmann, Tjeerd Rogier Johannes ; van Gastel, Raoul ; Zandvliet, Henricus J.W. ; Poelsema, Bene. / Anomalous decay of electronically stabilized lead mesas on Ni(111). In: Physical review letters. 2011 ; Vol. 107, No. 13. pp. 136103-1-136103-5.
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Anomalous decay of electronically stabilized lead mesas on Ni(111). / Bollmann, Tjeerd Rogier Johannes; van Gastel, Raoul; Zandvliet, Henricus J.W.; Poelsema, Bene.

In: Physical review letters, Vol. 107, No. 13, 2011, p. 136103-1-136103-5.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - Anomalous decay of electronically stabilized lead mesas on Ni(111)

AU - Bollmann, Tjeerd Rogier Johannes

AU - van Gastel, Raoul

AU - Zandvliet, Henricus J.W.

AU - Poelsema, Bene

PY - 2011

Y1 - 2011

N2 - With their low surface free energy, lead films tend to wet surfaces. However, quantum size effects (QSE) often lead to islands with distinct preferred heights. We study thin lead films on Ni(111) using low energy electron microscopy and selected area low energy electron diffraction. Indeed, the grown lead mesas show distinct evidence for QSE’s. At about 526 K metastable mesas reshape into hemispheres within milliseconds, driven by a huge reduction in interfacial free energy. The underlying diffusion rate is many orders of magnitude faster than expected for lead on bulk lead

AB - With their low surface free energy, lead films tend to wet surfaces. However, quantum size effects (QSE) often lead to islands with distinct preferred heights. We study thin lead films on Ni(111) using low energy electron microscopy and selected area low energy electron diffraction. Indeed, the grown lead mesas show distinct evidence for QSE’s. At about 526 K metastable mesas reshape into hemispheres within milliseconds, driven by a huge reduction in interfacial free energy. The underlying diffusion rate is many orders of magnitude faster than expected for lead on bulk lead

U2 - 10.1103/PhysRevLett.107.136103

DO - 10.1103/PhysRevLett.107.136103

M3 - Article

VL - 107

SP - 136103-1-136103-5

JO - Physical review letters

JF - Physical review letters

SN - 0031-9007

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ER -