Metallic and ferromagnetic edges in molybdenum disulfide nanoribbons

A. R. Botello-Méndez; F. López-Urías; M. Terrones; H. Terrones

doi:10.1088/0957-4484/20/32/325703

Metallic and ferromagnetic edges in molybdenum disulfide nanoribbons

A. R. Botello-Méndez, F. López-Urías, M. Terrones, H. Terrones

Research output: Contribution to journal › Article › peer-review

200 Scopus citations

Abstract

The magnetic and electronic properties of MoS₂ nanoribbons with zigzag and armchair edges are investigated using LSDA-DFT. We found that the properties of the nanoribbons are very different from bulk MoS₂ due to edge states. Armchair nanoribbons could be metallic and exhibit a magnetic moment; however, when passivating with hydrogen, they become semiconducting. Zigzag nanoribbons are metallic and exhibit unusual magnetic properties regardless of passivation. Our results could explain the recent evidence of ferromagnetism in flat MoS₂ clusters, and motivate the synthesis of novel MoS₂ nanosystems.

Original language	English (US)
Article number	325703
Journal	Nanotechnology
Volume	20
Issue number	32
DOIs	https://doi.org/10.1088/0957-4484/20/32/325703
State	Published - Aug 12 2009

All Science Journal Classification (ASJC) codes

Bioengineering
General Chemistry
General Materials Science
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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10.1088/0957-4484/20/32/325703

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abstract = "The magnetic and electronic properties of MoS2 nanoribbons with zigzag and armchair edges are investigated using LSDA-DFT. We found that the properties of the nanoribbons are very different from bulk MoS2 due to edge states. Armchair nanoribbons could be metallic and exhibit a magnetic moment; however, when passivating with hydrogen, they become semiconducting. Zigzag nanoribbons are metallic and exhibit unusual magnetic properties regardless of passivation. Our results could explain the recent evidence of ferromagnetism in flat MoS2 clusters, and motivate the synthesis of novel MoS2 nanosystems.",

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AU - Botello-Méndez, A. R.

AU - López-Urías, F.

AU - Terrones, M.

AU - Terrones, H.

PY - 2009/8/12

Y1 - 2009/8/12

N2 - The magnetic and electronic properties of MoS2 nanoribbons with zigzag and armchair edges are investigated using LSDA-DFT. We found that the properties of the nanoribbons are very different from bulk MoS2 due to edge states. Armchair nanoribbons could be metallic and exhibit a magnetic moment; however, when passivating with hydrogen, they become semiconducting. Zigzag nanoribbons are metallic and exhibit unusual magnetic properties regardless of passivation. Our results could explain the recent evidence of ferromagnetism in flat MoS2 clusters, and motivate the synthesis of novel MoS2 nanosystems.

AB - The magnetic and electronic properties of MoS2 nanoribbons with zigzag and armchair edges are investigated using LSDA-DFT. We found that the properties of the nanoribbons are very different from bulk MoS2 due to edge states. Armchair nanoribbons could be metallic and exhibit a magnetic moment; however, when passivating with hydrogen, they become semiconducting. Zigzag nanoribbons are metallic and exhibit unusual magnetic properties regardless of passivation. Our results could explain the recent evidence of ferromagnetism in flat MoS2 clusters, and motivate the synthesis of novel MoS2 nanosystems.

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JO - Nanotechnology

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Metallic and ferromagnetic edges in molybdenum disulfide nanoribbons

Abstract

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