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Core-level photoelectron study of indium chains on Si(1 1 1) at 10 K |
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| Authors: | V.Yu. Aristov O.V. Molodtsova D.V. Vyalikh M. Knupfer P. De Padova G. Le Lay |
| Affiliation: | 1. IFW Dresden, D-01069 Dresden, Germany;2. Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow Distr., 142432, Russia;3. Institute of Solid State Physics, TU Dresden, D-01069, Dresden, Germany;4. CNR-ISM, via Fosso del Cavaliere, 00133 Roma, Italy;5. CINaM-CNRS, Campus de Luminy, Case 913, F-13288 Marseille Cedex 09, France;6. UFR Sciences de la Matière, Université de Provence, Marseille, France |
| Abstract: | High-resolution core-level data from the prototypical In/Si(1 1 1) system have been acquired at 10 K. An asymmetric tail in the In 4d spectra reveals a metallic character of the low temperature Si(1 1 1)8 × 2 phase confined to the inner indium rows. The decoupling of the one-dimensional inner indium chains from any metallic environment at ∼10 K suggests a possible Luttinger liquid behavior. At room temperature essentially a broadening of the spectral features is noticed, which appears compatible with a fluctuation scenario. |
| Keywords: | 1D systems Indium Silicon(1 1 1) Core-level spectroscopy |
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