Pseudo-trójwymiarowy obraz STM pojedynczych atomów Pb zaadsorbowanych na czystej, zrekonstruowanej powierzchni Si(111)7x7. Widoczne płaskie regularnie rozmieszczone, z okresem 2,7 nm, rozety o potrójnej symetrii, wyznaczają węzły sieci 7x7. Skala wysokości jest silnie rozciągnięta.

Components of the apparatus

Scanning tunnelling microscope - Omicron VT-STM

  • electronics - Omicron Matrix,
  • possibility of STM measurements at 30 K (LHe) up to over 750 K,
  • tungsten electrochemically etched tips.

RHEED dyfracion

  • homemade (S&NP) electron gun,
  • fluorescent screen with CMOS camera (14-bit).

 Sample preparation

  • effusion cell with materials:
    • Au,
    • In,
    • Pb,
    • Bi,
    • Sb,
  • resistive  heating of semiconducting samples up to 1500 K,
  • possibility of Pb and In deposition at 30 K,
  • possibility of Pb, Au, Bi and Sb deposition at elevated substrate temperature with simultaneous observation of RHEED pattern,
  • quartz microbalance.




More about STM

presentation prepared by M. Jałochowski


We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.