Local heating at a ferromagnet-metal interface

Néel, N.; Kröger, J.; Berndt, R.
November 2009
Applied Physics Letters;11/16/2009, Vol. 95 Issue 20, p203103
Academic Journal
The electronic structure of individual Co islands on Cu(111) was investigated by a cryogenic scanning tunneling microscope. An irreversible shift of the occupied Co d band toward the Fermi level was induced by elevated tunneling currents and voltages. Heating of the Co–Cu interface most likely induces local alloying and a concomitant modification of the island electronic structure.


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