Theory of tunneling from transition metal tips

Doyen, G.; Koetter, Erich; Barth, J.; Drakova, D.

doi:/10.1007/978-94-015-7871-4_5

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Theory of tunneling from transition metal tips

Doyen, G., Koetter, E., Barth, J., & Drakova, D. (1990). Theory of tunneling from transition metal tips. In R. J. Behm, N. Garcia, & H. Rohrer (Eds.), Scanning Tunneling Microscopy and Related Methods (pp. 97-111). Dordrecht: Springer.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0008-A1AA-2 Version Permalink: https://hdl.handle.net/21.11116/0000-0008-A1AB-1

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Creators:
Doyen, G.¹, Author
Koetter, Erich¹, Author
Barth, J.², Author
Drakova, D.³, Author

Affiliations:
1Theory, Fritz Haber Institute, Max Planck Society, ou_634547
2Institut fur Physikalische Chemie der Universität München, D-8000 Miünchen 2, Theresienstr. 37, ou_persistent22
3Department of Inorganic Chemistry, University of Sofia, Bulgaria, ou_persistent22

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Abstract: A transition metal tip consisting of a single tungsten atom adsorbed on a W(llO) surface is modelled. Chemisorpion theory is applied to treat the interaction of the tip atom with the flat W(llO)-surface. The basis set on the tip atom includes 6s-, 6p- and 5d-orbitals. The importance of the d-electrons for the tunneling to an AI(111)-surface is investigated. Inclusion of the d-orbitals affects strongly the local electronic structure and modifies the current. For short distances a significant part of the total tunnel current flows directly via the tip d-orbitals. The theory is used to investigate the 'barrier height' of the clean surface. A corrugation of the AI(l11)-surface is obtained in STM-theory, if a elastic deformation of the tip is taken into account.

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Language(s): eng - English

Dates: Date issued: 1990

Publication Status: Issued

Pages: 15

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Rev. Type: Peer

Identifiers: DOI: /10.1007/978-94-015-7871-4_5

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Title: Scanning Tunneling Microscopy and Related Methods

Source Genre: Book

Creator(s):
Behm, R. J., Editor
Garcia, N., Editor
Rohrer, H., Editor

Affiliations:
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Publ. Info: Dordrecht : Springer

Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 97 - 111 Identifier: ISBN: 978-94-015-7871-4
DOI: 10.1007/978-94-015-7871-4

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Title: NATO ASI Series E: Applied Sciences

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Pages: - Volume / Issue: 184 Sequence Number: - Start / End Page: - Identifier: -