Imaging single spin probes embedded in a conductive diamagnetic layer.
Abstract
The detection of spin noise by means of scanning tunneling microscopy (STM) has recently been substantially improved by the work presented by Komeda and Manassen (Komeda, T.; Manassen, Y. Appl. Phys. Lett. 2008, 92, 212506). The application of this technique to molecular paramagnets requires the positioning and anchoring of paramagnetic molecules at surfaces. It also requires the possibility of tunneling high current densities into the STM-molecule-substrate tunneling junction. In this letter, we exploit the self-assembly of 1,10-phenantroline on the Au(111) surface to form a diamagnetic matrix that hosts individual molecules and dimers of diphenyl-2-picryl-hydrazyl (DPPH). STM measurements are used to characterize the molecular layer. Electron spin resonance (ESR) measurements elucidate the role of thermal annealing in the preservation of the paramagnetic nature of the DPPH molecules.
- Authors:
-
- Materials Science Division
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1009341
- Report Number(s):
- ANL/MSD/JA-68798
Journal ID: 0743-7463; TRN: US201106%%418
- DOE Contract Number:
- DE-AC02-06CH11357
- Resource Type:
- Journal Article
- Journal Name:
- Langmuir
- Additional Journal Information:
- Journal Volume: 25; Journal Issue: Jan. 2009
- Country of Publication:
- United States
- Language:
- ENGLISH
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; SPIN; DETECTION; DPPH; ELECTRON SPIN RESONANCE; SCANNING TUNNELING MICROSCOPY; PARAMAGNETISM
Citation Formats
Messina, P, and Fradin, F. Imaging single spin probes embedded in a conductive diamagnetic layer.. United States: N. p., 2009.
Web. doi:10.1021/la8039863.
Messina, P, & Fradin, F. Imaging single spin probes embedded in a conductive diamagnetic layer.. United States. https://doi.org/10.1021/la8039863
Messina, P, and Fradin, F. 2009.
"Imaging single spin probes embedded in a conductive diamagnetic layer.". United States. https://doi.org/10.1021/la8039863.
@article{osti_1009341,
title = {Imaging single spin probes embedded in a conductive diamagnetic layer.},
author = {Messina, P and Fradin, F},
abstractNote = {The detection of spin noise by means of scanning tunneling microscopy (STM) has recently been substantially improved by the work presented by Komeda and Manassen (Komeda, T.; Manassen, Y. Appl. Phys. Lett. 2008, 92, 212506). The application of this technique to molecular paramagnets requires the positioning and anchoring of paramagnetic molecules at surfaces. It also requires the possibility of tunneling high current densities into the STM-molecule-substrate tunneling junction. In this letter, we exploit the self-assembly of 1,10-phenantroline on the Au(111) surface to form a diamagnetic matrix that hosts individual molecules and dimers of diphenyl-2-picryl-hydrazyl (DPPH). STM measurements are used to characterize the molecular layer. Electron spin resonance (ESR) measurements elucidate the role of thermal annealing in the preservation of the paramagnetic nature of the DPPH molecules.},
doi = {10.1021/la8039863},
url = {https://www.osti.gov/biblio/1009341},
journal = {Langmuir},
number = Jan. 2009,
volume = 25,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 2009},
month = {Thu Jan 01 00:00:00 EST 2009}
}