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Open Quantum Systems Decoherence Spin Qubits Silicon Quantum Computing Quantum Chemistry

Competing classical and quantum effects in shape relaxation of a metallic island.

PubMed

Authors: Okamoto H, Chen D, Yamada T

Year

2002

Paper ID

13098

Status

Peer-reviewed

Abstract Read

~2 min

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Abstract

Pb islands grown on a Si substrate transform at room temperature from a flattop facet geometry into an unusual ring shape. The volume-preserving mass transport is catalyzed by the electrical field from the tip of a scanning tunneling microscope. The ring morphology results from the competing classical and quantum effects in the shape relaxation. The latter is enhanced by the large anisotropy of the effective mass, and leads to a sequential strip-flow growth on alternating strips of the same facet defined by substrate steps, showing its dynamical impact on the stability of a nanostructure.

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Pb islands grown on a Si substrate transform at room temperature from a flattop facet geometry into an unusual ring shape.

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References & Citation Signals

[1] DOI https://doi.org/10.1103/PhysRevLett.89.256101 [2] Publisher https://pubmed.ncbi.nlm.nih.gov/12484902/

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