We report on the observation of chirality induced spin selectivity for electrons transmitted through monolayers of oligopeptides, both for energies above the vacuum level as well as for bound electrons and for electrons conducted through a single molecule. The dependence of the spin selectivity on the molecular length is measured in an electrochemical cell for bound electrons and in a photoemission spectrometer for photoelectrons. The length dependence and the absolute spin polarization are similar for both energy regimes. Single molecule conductance studies provide an effective charge transport barrier between the two spin channels and it is found to be on the order of 0.5 eV.

Spin Filtering in Electron Transport Through Chiral Oligopeptides / Kettner, M.; Göhler, B.; Zacharias, H.; Mishra, D.; Kiran, V.; Naaman, R; Fontanesi, Claudio; Waldeck, David H.; Sek, Slawomir; Pawowski, Jan; Juhaniewicz, Joanna. - In: JOURNAL OF PHYSICAL CHEMISTRY. C. - ISSN 1932-7447. - STAMPA. - 119:26(2015), pp. 14542-14547. [10.1021/jp509974z]

Spin Filtering in Electron Transport Through Chiral Oligopeptides

FONTANESI, Claudio;
2015

Abstract

We report on the observation of chirality induced spin selectivity for electrons transmitted through monolayers of oligopeptides, both for energies above the vacuum level as well as for bound electrons and for electrons conducted through a single molecule. The dependence of the spin selectivity on the molecular length is measured in an electrochemical cell for bound electrons and in a photoemission spectrometer for photoelectrons. The length dependence and the absolute spin polarization are similar for both energy regimes. Single molecule conductance studies provide an effective charge transport barrier between the two spin channels and it is found to be on the order of 0.5 eV.
2015
30-dic-2014
119
26
14542
14547
Spin Filtering in Electron Transport Through Chiral Oligopeptides / Kettner, M.; Göhler, B.; Zacharias, H.; Mishra, D.; Kiran, V.; Naaman, R; Fontanesi, Claudio; Waldeck, David H.; Sek, Slawomir; Pawowski, Jan; Juhaniewicz, Joanna. - In: JOURNAL OF PHYSICAL CHEMISTRY. C. - ISSN 1932-7447. - STAMPA. - 119:26(2015), pp. 14542-14547. [10.1021/jp509974z]
Kettner, M.; Göhler, B.; Zacharias, H.; Mishra, D.; Kiran, V.; Naaman, R; Fontanesi, Claudio; Waldeck, David H.; Sek, Slawomir; Pawowski, Jan; Juhaniewicz, Joanna
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1078971
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