Spin-dependent quantum interference within a single magnetic nanostructure

H. Oka, P. A. Ignatiev, S. Wedekind, G. Rodary, L. Niebergall, V. S. Stepanyuk, D. Sander, J. Kirschner

Research output: Contribution to journalArticlepeer-review

82 Citations (Scopus)

Abstract

Quantum interference is a coherent quantum phenomenon that takes place in confined geometries. Using spin-polarized scanning tunneling microscopy, we found that quantum interference of electrons causes spatial modulation of spin polarization within a single magnetic nanostructure. We observed changes in both the sign and magnitude of the spin polarization on a subnanometer scale. A comparison of our experimental results with ab initio calculations shows that at a given energy, the modulation of the spin polarization can be ascribed to the difference between the spatially modulated local density of states of the majority spin and the nonmodulated minority spin contribution.

Original languageEnglish
Pages (from-to)843-846
Number of pages4
JournalScience
Volume327
Issue number5967
DOIs
Publication statusPublished - 2010 Feb 12
Externally publishedYes

ASJC Scopus subject areas

  • General

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