Document Type

Article

Original Publication Date

2011

Journal/Book/Conference Title

Physical Review B

Volume

84

Issue

8

DOI of Original Publication

10.1103/PhysRevB.84.081402

Comments

Originally published by the American Physical Society at: http://dx.doi.org/10.1103/PhysRevB.84.081402

Date of Submission

April 2015

Abstract

Using density functional theory (DFT) we show that intrinsic ferromagnetism in two-dimensional (2D) carbon semiconducting structures can be achieved by linking triangular graphene nanoflakes (GNFs) with carbon chains containing an odd number of carbon atoms. The observed magnetism can be understood from the singlet-triplet rule of C chain, the anti-pattern rule for a magnetic bipartite C structure, and the Lieb-Mattis criterion. Monte Carlo (MC) simulations indicate that the 2D frameworks can display transitions from a high-spin state to a low-spin state and to a paramagnetic state as temperature increases.

Rights

Zhou, J., Wang, Q., Sun, Q., et al. Intrinsic ferromagnetism in two-dimensional carbon structures: Triangular graphene nanoflakes linked by carbon chains. Physical Review B, 84, 081402(R) (2011). Copyright © 2011 American Physical Society.

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VCU Physics Publications

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