Spin-polarized confined states in Ag films on Fe(110)
Abstract
Spin- and angle-resolved photoemission spectroscopy of thin Ag(111) films on ferromagnetic Fe(110) shows a series of spin-polarized peaks. These features derive from Ag sp-bands, which form quantum well states and resonances due to confinement by a spin-dependent interface potential barrier. The spin-up states are broader and located at higher binding energy than the corresponding spin-down states at Gamma, although the differences attenuate near the Fermi level. The spin-down states display multiple gap openings, which interrupt their parabolic-like dispersion. As a result, first-principles calculations attribute these findings to the symmetry- and spin-selective hybridization of the Ag states with the exchange-split bands of the substrate.
- Authors:
-
- Istituto di Struttura della Materia, Trieste (Italy)
- Peter Grunberg Institut and Institute for Advanced Simulation, Julich (Germany)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Univ. della Calabria, Arcavacata di Rende (CS) (Italy)
- Istituto di Struttura della Materia, Roma (Italy)
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1433964
- Report Number(s):
- BNL-203487-2018-JAAM
Journal ID: ISSN 0953-8984; TRN: US1802812
- Grant/Contract Number:
- SC0012704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Physics. Condensed Matter
- Additional Journal Information:
- Journal Volume: 29; Journal Issue: 49; Journal ID: ISSN 0953-8984
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Moras, Paolo, Bihlmayer, G., Vescovo, Elio, Sheverdyaeva, P. M., Papagno, M., Ferrari, L., and Carbone, C. Spin-polarized confined states in Ag films on Fe(110). United States: N. p., 2017.
Web. doi:10.1088/1361-648X/aa9760.
Moras, Paolo, Bihlmayer, G., Vescovo, Elio, Sheverdyaeva, P. M., Papagno, M., Ferrari, L., & Carbone, C. Spin-polarized confined states in Ag films on Fe(110). United States. https://doi.org/10.1088/1361-648X/aa9760
Moras, Paolo, Bihlmayer, G., Vescovo, Elio, Sheverdyaeva, P. M., Papagno, M., Ferrari, L., and Carbone, C. Thu .
"Spin-polarized confined states in Ag films on Fe(110)". United States. https://doi.org/10.1088/1361-648X/aa9760. https://www.osti.gov/servlets/purl/1433964.
@article{osti_1433964,
title = {Spin-polarized confined states in Ag films on Fe(110)},
author = {Moras, Paolo and Bihlmayer, G. and Vescovo, Elio and Sheverdyaeva, P. M. and Papagno, M. and Ferrari, L. and Carbone, C.},
abstractNote = {Spin- and angle-resolved photoemission spectroscopy of thin Ag(111) films on ferromagnetic Fe(110) shows a series of spin-polarized peaks. These features derive from Ag sp-bands, which form quantum well states and resonances due to confinement by a spin-dependent interface potential barrier. The spin-up states are broader and located at higher binding energy than the corresponding spin-down states at Gamma, although the differences attenuate near the Fermi level. The spin-down states display multiple gap openings, which interrupt their parabolic-like dispersion. As a result, first-principles calculations attribute these findings to the symmetry- and spin-selective hybridization of the Ag states with the exchange-split bands of the substrate.},
doi = {10.1088/1361-648X/aa9760},
journal = {Journal of Physics. Condensed Matter},
number = 49,
volume = 29,
place = {United States},
year = {Thu Nov 16 00:00:00 EST 2017},
month = {Thu Nov 16 00:00:00 EST 2017}
}
Web of Science