Low-temperature scanning tunneling microscopy and spectroscopy of noble-metal surfaces

Summary: Low-index surfaces of copper single crystals were studied by scanning tunneling microscopy (STM) and spectroscopy (STS). The experiments were performed under ultra-high vacuum conditions at room- and close to liquid helium- temperatures. At lower temperatures thermal drifts are largely redu...

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Permalink: http://skupnikatalog.nsk.hr/Record/nsk.NSK01000734663/Details
Matična publikacija: Croatica chemica acta
82 (2009), 2 ; str. 485-491
Glavni autor: Zupanič, Erik (-)
Ostali autori: Žitko, Rok (-), Van Midden, Hermen J. P., Muševič, Igor, Prodan, Albert
Vrsta građe: Članak
Jezik: eng
Predmet:
Online pristup: Croatica Chemica Acta
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100 1 |a Zupanič, Erik 
245 1 0 |a Low-temperature scanning tunneling microscopy and spectroscopy of noble-metal surfaces /  |c Erik Zupanič, Rok Žitko, Herman J. P. van Midden, Igor Muševič, and Albert Prodan. 
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504 |a Bibliografija: 46 jed 
520 8 |a Summary: Low-index surfaces of copper single crystals were studied by scanning tunneling microscopy (STM) and spectroscopy (STS). The experiments were performed under ultra-high vacuum conditions at room- and close to liquid helium- temperatures. At lower temperatures thermal drifts are largely reduced, a better STM mechanical stability is achieved and improved spectroscopy measurements, with the energy resolution shifted from meV to μeV, are possible. Low-index surfaces of bulk copper single crystals are unstable at room temperature and show poor atomic resolution with unstable single-atomic steps. In order to reduce thermal vibrations and improve atomic resolution, such surfaces must be cooled close to liquid helium temperature. At cryogenic temperatures individual surface defects, adsorbents and electronic standing waves can be studied. In addition, individual adatoms can be manipulated by STM into desired nanostructures and analyzed by STS. By measuring dI/dU(U), which is proportional to the local density of states, spectroscopic information with high spatial resolution can be obtained 
653 0 |a Niskotemperaturna pretražna tunelirajuća mikroskopija  |a Spektroskopija ploha plemenitih kovina  |a Monokristali bakra 
700 1 |a Žitko, Rok 
700 1 |a Van Midden, Hermen J. P. 
700 1 |a Muševič, Igor 
700 1 |a Prodan, Albert 
773 0 |t Croatica chemica acta  |x 0011-1643  |g 82 (2009), 2 ; str. 485-491  |w nsk.(HR-ZaNSK)000001621 
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