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STM study of Nb(111) prepared by different methods


[ 1 ] Instytut Fizyki, Wydział Inżynierii Materiałowej i Fizyki Technicznej, Politechnika Poznańska | [ P ] employee

Scientific discipline (Law 2.0)

[2.8] Materials engineering

Year of publication


Published in

Physical Review Materials

Journal year: 2023 | Journal volume: vol. 7 | Journal number: iss. 8

Article type

scientific article

Publication language



EN Niobium with its highest transition temperature among all elemental superconductors has become a favorable substrate for realizing well-defined low-dimensional magnet-superconductor hybrid systems exhibiting novel types of exotic electronic states such as Majorana zero-energy modes. While a preparation procedure for obtaining atomically clean Nb(110) substrates has previously been reported, a suitable preparation method for clean Nb(111) surfaces is still lacking. Here, we report a recipe for cleaning Nb(111) surfaces based on an atomic hydrogen treatment followed by short flashes to elevated temperatures. The atomic surface structure of clean nonreconstructed Nb(111) is investigated by high-resolution scanning tunneling microscopy, as well as a surface reconstruction with a reduced atom density compared to the (111) plane of a bcc crystal resulting from a surface premelting at high annealing temperatures.

Date of online publication


Pages (from - to)

084803-1 - 084803-5




License type


Ministry points / journal


Impact Factor

3,4 [List 2022]

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