Alternation between modes of electron transmission through organized organic layers

Autor:	Zeev Vager, Ron Naaman, Itai Carmeli, Ziv Gefen
Rok vydání:	2003
Předmět:	Materials science business.industry media_common.quotation_subject Photoelectric effect Atmospheric temperature range Polarization (waves) Asymmetry Molecular physics Spectral line Optics Monolayer Electric potential business Circular polarization media_common
Zdroj:	Physical Review B. 68
ISSN:	1095-3795 0163-1829
DOI:	10.1103/physrevb.68.115418
Popis:	Photoelectrons from gold covered with self-assembled monolayers of L-polyalanine were measured as a function of temperature. Spectra and asymmetries to circularly polarized light were recorded while monitoring the electric potential across the monolayer. Upon cooling, this potential changes gradually, passing through zero at 264 K. But, contrary to the gradual potential change, both the shape of spectra and the polarization asymmetry change abruptly at the edges of the temperature range Δ=264′ 10 K. Above and below A, opposite asymmetries are observed and the spectra are broad. Within Δ, a series of several sharp resonances appear with null asymmetry.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::576976b366abdddc9b74fea6cb77d4e2 https://doi.org/10.1103/physrevb.68.115418 Zobrazit plný text záznamu