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- W2169938400 abstract "Tunneling electrons from the tip of a scanning tunneling microscope can be used to induce adatom hopping on Br-terminated $mathrm{S}mathrm{i}(100)mathrm{text{ensuremath{-}}}(2ifmmodetimeselsetexttimesfi{}1)$ at low current and without voltage pulses. Hopping does not occur when electrons tunnel from a sample to a tip. The threshold energy is $+0.8text{ }text{ }mathrm{V}$, and tunneling spectroscopy shows antibonding Si-Br states 0.8 eV above the Fermi level. Electron capture in these states is a necessary condition for hopping, but repulsive adsorbate interactions that lower the activation barrier are also required. Such interactions are strong near saturation for Br but are insufficient when the coverage is low or when Br is replaced by Cl." @default.
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- W2169938400 date "2002-12-11" @default.
- W2169938400 modified "2023-10-10" @default.
- W2169938400 title "Tunneling Electron Induced Bromine Hopping on<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi mathvariant=normal>S</mml:mi><mml:mi mathvariant=normal>i</mml:mi><mml:mo stretchy=false>(</mml:mo><mml:mn>100</mml:mn><mml:mo stretchy=false>)</mml:mo><mml:mtext mathvariant=normal>−</mml:mtext><mml:mo stretchy=false>(</mml:mo><mml:mn>2</mml:mn><mml:mo>×</mml:mo><mml:mn>1</mml:mn><mml:mo stretchy=false>)</mml:mo></mml:math>" @default.
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- W2169938400 doi "https://doi.org/10.1103/physrevlett.89.266106" @default.
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