Pressure induced anisotropy of electrical conductivity in polycrystalline molybdenum disulfide

V. Sánchez; E. Benavente; V. Lavayen; C. O'Dwyer; C. M. Sotomayor Torres; G. González; M. A. Santa Ana

doi:10.1016/j.apsusc.2005.10.011

Pressure induced anisotropy of electrical conductivity in polycrystalline molybdenum disulfide

V. Sánchez
, E. Benavente
, V. Lavayen
, C. O'Dwyer
, C. M. Sotomayor Torres
, G. González
, M. A. Santa Ana

School of Chemistry

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

Abstract

Anisotropic specimens of MoS ₂ 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.

Original language	English
Pages (from-to)	7941-7947
Number of pages	7
Journal	Applied Surface Science
Volume	252
Issue number	22
DOIs	https://doi.org/10.1016/j.apsusc.2005.10.011
Publication status	Published - 15 Sep 2006

Keywords

Anisotropy
Conductivity
Molybdenum
Surface pressure

Access to Document

10.1016/j.apsusc.2005.10.011

Cite this

@article{c75944dd984642198dfd323118830c1b,

title = "Pressure induced anisotropy of electrical conductivity in polycrystalline molybdenum disulfide",

abstract = " Anisotropic specimens of MoS 2 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.",

keywords = "Anisotropy, Conductivity, Molybdenum, Surface pressure",

author = "V. S{\'a}nchez and E. Benavente and V. Lavayen and C. O'Dwyer and \{Sotomayor Torres\}, \{C. M.\} and G. Gonz{\'a}lez and \{Santa Ana\}, \{M. A.\}",

year = "2006",

month = sep,

day = "15",

doi = "10.1016/j.apsusc.2005.10.011",

language = "English",

volume = "252",

pages = "7941--7947",

journal = "Applied Surface Science",

issn = "0169-4332",

publisher = "Elsevier B.V.",

number = "22",

}

TY - JOUR

T1 - Pressure induced anisotropy of electrical conductivity in polycrystalline molybdenum disulfide

AU - Sánchez, V.

AU - Benavente, E.

AU - Lavayen, V.

AU - O'Dwyer, C.

AU - Sotomayor Torres, C. M.

AU - González, G.

AU - Santa Ana, M. A.

PY - 2006/9/15

Y1 - 2006/9/15

N2 - Anisotropic specimens of MoS 2 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.

AB - Anisotropic specimens of MoS 2 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.

KW - Anisotropy

KW - Conductivity

KW - Molybdenum

KW - Surface pressure

UR - https://www.scopus.com/pages/publications/33747875880

U2 - 10.1016/j.apsusc.2005.10.011

DO - 10.1016/j.apsusc.2005.10.011

M3 - Article

AN - SCOPUS:33747875880

SN - 0169-4332

VL - 252

SP - 7941

EP - 7947

JO - Applied Surface Science

JF - Applied Surface Science

IS - 22

ER -

Pressure induced anisotropy of electrical conductivity in polycrystalline molybdenum disulfide

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this