Pressure induced anisotropy of electrical conductivity in polycrystalline molybdenum disulfide


Autoria(s): Sanchez, V.; Benavente, Eglantina; O'Dwyer, Colm; Lavayen, Vladimir; Santa-Ana, María A.; Sotomayor Torres, Clivia M.; Gonzalez, Guillermo
Contribuinte(s)

Science Foundation Ireland

Universidad de Chile

Fondo Nacional de Desarrollo Científico y Tecnológico, Chile

Data(s)

26/02/2013

26/02/2013

2006

01/01/2006

30/11/2012

Resumo

Anisotropic specimens of MoS2 are obtained by pressing the microcrystalline powder into special die. This inelastic compression results in a rearrangement of the disulfide micro platelets observed by Atomic Force Microscopy and reflected in the macroscopic anisotropy in electrical conductivity in these samples. The conductivity measured parallel and perpendicular to the direction of applied pressure exhibits an anisotropy factor of ∼10 at 1 GPa. This behaviour of the conductivity as a function of applied pressure is explained as the result of the simultaneous influence of a rearrangement of the micro platelets in the solid and the change of the inter-grain distances.

Science Foundation Ireland; Fondo Nacional de Desarrollo Científico y Tecnológico, Chile (Grant 1050344)

Accepted Version

Peer reviewed

Formato

application/pdf

Identificador

V. Sánchez, E. Benavente, V. Lavayen, C. O’Dwyer, C.M. Sotomayor Torres, G. González, M.A. Santa Ana. (2006). 'Pressure induced anisotropy of electrical conductivity in polycrystalline molybdenum disulfide'. Applied Surface Science, Vol 252, Issue 22, pp. 7941-7947. 10.1016/j.apsusc.2005.10.011.

252

22

7941

7947

0169-4332

http://hdl.handle.net/10468/989

10.1016/j.apsusc.2005.10.011

Applied Surface Science

Idioma(s)

en

Publicador

Elsevier

Relação

http://www.sciencedirect.com/science/article/pii/S0169433205014753

Direitos

Copyright © 2006, Elsevier. NOTICE: this is the author’s version of a work that was accepted for publication in Applied Surface Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Applied Surface Science [252, 22, 15 September 2006] DOI: http://dx.doi.org/10.1016/j.apsusc.2005.10.011

Palavras-Chave #Molybdenum #Anisotropy #Conductivity #Surface pressure
Tipo

Article (peer-reviewed)