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Title: Electron spin magnetism of zigzag graphene nanoribbon edge states

Abstract

The electron spin states of zigzag graphene nanoribbon (ZGNR) edge play a pivotal role in the applications of graphene nanoribbons. However, the exact arrangements of the electron spins remain unclear to date. In this report, the electronic spin states of the ZGNR edge have been elucidated through a combination of quantum chemical investigation and previous electron spin resonance experiment observations. An alternating α and β spin configuration of the unpaired electrons along the ZGNR edge is established in ambient condition without any external magnetic field, and the origin of the spin magnetism of the ZGNR edge is revealed. It paves a pathway for the understanding and design of graphene based electronic and spintronic devices.

Authors:
;  [1]
  1. School of Electrical and Computer Engineering and Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907 (United States)
Publication Date:
OSTI Identifier:
22262569
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 104; Journal Issue: 16; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTRON SPIN RESONANCE; ELECTRONS; GRAPHENE; MAGNETIC FIELDS; NANOSTRUCTURES; SPIN

Citation Formats

Xu, Kun, E-mail: xu83@purdue.edu, and Ye, Peide D. Electron spin magnetism of zigzag graphene nanoribbon edge states. United States: N. p., 2014. Web. doi:10.1063/1.4872377.
Xu, Kun, E-mail: xu83@purdue.edu, & Ye, Peide D. Electron spin magnetism of zigzag graphene nanoribbon edge states. United States. doi:10.1063/1.4872377.
Xu, Kun, E-mail: xu83@purdue.edu, and Ye, Peide D. Mon . "Electron spin magnetism of zigzag graphene nanoribbon edge states". United States. doi:10.1063/1.4872377.
@article{osti_22262569,
title = {Electron spin magnetism of zigzag graphene nanoribbon edge states},
author = {Xu, Kun, E-mail: xu83@purdue.edu and Ye, Peide D.},
abstractNote = {The electron spin states of zigzag graphene nanoribbon (ZGNR) edge play a pivotal role in the applications of graphene nanoribbons. However, the exact arrangements of the electron spins remain unclear to date. In this report, the electronic spin states of the ZGNR edge have been elucidated through a combination of quantum chemical investigation and previous electron spin resonance experiment observations. An alternating α and β spin configuration of the unpaired electrons along the ZGNR edge is established in ambient condition without any external magnetic field, and the origin of the spin magnetism of the ZGNR edge is revealed. It paves a pathway for the understanding and design of graphene based electronic and spintronic devices.},
doi = {10.1063/1.4872377},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 16,
volume = 104,
place = {United States},
year = {2014},
month = {4}
}