High pressure investigations of MoS2

Webb, A. W.; Feldman, J. L.; Skelton, E. F.; Towle, Laird C.; Liu, C.Y.; Spain, Ian L.

doi:10.1016/0022-3697(76)90095-0

Cited by 41 publications

(23 citation statements)

References 30 publications

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“…Figure 1 shows the lattice parameters expressed as a percentage of the equilibrium lattice parameters for hydrostatic pressures up to 40 GPa. This allows comparing a (in-plane) and c (out-of-plane) directly and avoids complications due to the different equilibrium a lattice constant observed by Webb et al 19 Our results are in excellent agreement with those of Webb et al, 19 who reported results up to 4 GPa. The agreement with the values of Aksoy et al 31 for the a lattice parameter is also very good up to 25 GPa; Aksoy et al stated that a phase transition might occur at this pressure.…”

Section: ■ Results and Discussionsupporting

confidence: 94%

“…The slope of the linear fits as a function of the hydrostatic pressure differs substantially between the elastic constants: c 11 and c 12 increase by a relatively Figure 2. Ratio ε zz /ε xx as extracted from our calculations and from the experimental data by Webb et al 19 and by Aksoy et al 31 The inset shows a ball-and-stick model of MoS 2 , with the unit cell and axes indicated. The application of pressure results in changes in the electronic structure.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Elastic Constants and Pressure-Induced Effects in MoS₂

Peelaers

Walle

2014

J. Phys. Chem. C

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We use hybrid density functional theory, including van der Waals interactions, to study the elastic properties of bulk molybdenum disulfide (MoS 2 ). We determine a complete, consistent set of accurate values for elastic constants, overcoming the inconsistencies in the reported values in the literature. We also elucidate the changes in materials properties that occur when hydrostatic pressure is applied. The compression ratio, the transition from semiconductor to semimetal, and the pressure dependence of the elastic constants are discussed. The good agreement with experiments for small hydrostatic pressures validates our methodology and our calculated values for the elastic constants.

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Section: ■ Results and Discussionsupporting

confidence: 94%

Section: ■ Results and Discussionmentioning

confidence: 99%

Elastic Constants and Pressure-Induced Effects in MoS₂

Peelaers

Walle

2014

J. Phys. Chem. C

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“…Studies regarding compression and tribological behaviors of solid lubricant nanoparticles have been performed up to 0.7 GPa [10,11]. The properties of MoS 2 , such as its structural stability and compressibility are particularly important at higher pressures.…”

Section: Introductionmentioning

confidence: 99%

X-ray diffraction study of molybdenum disulfide to 38.8GPa

Aksoy

Selvi

et al. 2006

Journal of Physics and Chemistry of Solids

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“…The interlayer bond distances as well as the bond angles change continuously with pressure and show no anomaly at the phase transition. The compression mechanism for the layers in Fe 0.47 NbS 2 is similar to the deformation observed in the layer compounds 3R-NbS 2 and 2H-NbS 2 [10,12].…”

Section: Resultsmentioning

confidence: 65%

“…Previous high-pressure investigations of non-intercalated transition-metal dichalcogenides revealed a strong anisotropy in the lattice compression [7][8][9][10][11][12] and slight changes in the superconducting transition temperature T c [7] . However, no structural phase transitions have been reported.…”

Section: Introductionmentioning

confidence: 98%