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Title: 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:
;  [1]
  1. 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}
}