X-ray diffraction study of molybdenum disulfide to 38.8 GPa

Resul Aksoy; Yanzhang Ma; Emre Selvi; Ming C. Chyu; Atila Ertas; Allen White

doi:10.1016/j.jpcs.2006.05.058

X-ray diffraction study of molybdenum disulfide to 38.8 GPa

Resul Aksoy, Yanzhang Ma, Emre Selvi, Ming C. Chyu, Atila Ertas, Allen White

Mechanical Engineering

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

70 Scopus citations

Abstract

The high-pressure behavior of molybdenum disulfide (MoS₂) has been investigated using an energy dispersive synchrotron X-ray diffraction method in a diamond anvil cell to 38.8 GPa at room temperature. It is found that the c-axis compression ratio is about three times larger than a-axis at pressures below 10 GPa. It gradually decreases with increasing pressure, and reduces to two times above 28.9 GPa. The reduction of c-axis with pressure displayed a discontinuity between 20.5 and 28.9 GPa. This may result from a phase transformation. The experimental pressure-volume data below 20.5 GPa were fitted with the third-order Birch-Murnaghan equation of state, and the bulk modulus was obtained as K_0T=53.4±1 GPa and its pressure derivative as K′_0T=9.2±0.4.

Original language	English
Pages (from-to)	1914-1917
Number of pages	4
Journal	Journal of Physics and Chemistry of Solids
Volume	67
Issue number	9-10
DOIs	https://doi.org/10.1016/j.jpcs.2006.05.058
State	Published - Sep 2006

Keywords

C. High pressure
C. X-ray diffraction
D. Equations-of-state

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10.1016/j.jpcs.2006.05.058

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@article{ef11ada1dba3484fabc49ae27b7528ce,

title = "X-ray diffraction study of molybdenum disulfide to 38.8 GPa",

abstract = "The high-pressure behavior of molybdenum disulfide (MoS2) has been investigated using an energy dispersive synchrotron X-ray diffraction method in a diamond anvil cell to 38.8 GPa at room temperature. It is found that the c-axis compression ratio is about three times larger than a-axis at pressures below 10 GPa. It gradually decreases with increasing pressure, and reduces to two times above 28.9 GPa. The reduction of c-axis with pressure displayed a discontinuity between 20.5 and 28.9 GPa. This may result from a phase transformation. The experimental pressure-volume data below 20.5 GPa were fitted with the third-order Birch-Murnaghan equation of state, and the bulk modulus was obtained as K0T=53.4±1 GPa and its pressure derivative as K′0T=9.2±0.4.",

keywords = "C. High pressure, C. X-ray diffraction, D. Equations-of-state",

author = "Resul Aksoy and Yanzhang Ma and Emre Selvi and Chyu, {Ming C.} and Atila Ertas and Allen White",

note = "Funding Information: We are thankful to J. Hu and Q. Guo for their technical support with the X-ray diffraction measurements at Brookhaven National Laboratory. Thanks are also due to N. Guven for his support in this, and the anonymous reviewers for their comments and suggestions to our manuscript. This project was supported by the Texas Tech University new faculty start-up Grant, and by DOE under agreement No. DE-FC03-03NA00144.",

year = "2006",

month = sep,

doi = "10.1016/j.jpcs.2006.05.058",

language = "English",

volume = "67",

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journal = "Journal of Physics and Chemistry of Solids",

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T1 - X-ray diffraction study of molybdenum disulfide to 38.8 GPa

AU - Aksoy, Resul

AU - Ma, Yanzhang

AU - Selvi, Emre

AU - Chyu, Ming C.

AU - Ertas, Atila

AU - White, Allen

N1 - Funding Information: We are thankful to J. Hu and Q. Guo for their technical support with the X-ray diffraction measurements at Brookhaven National Laboratory. Thanks are also due to N. Guven for his support in this, and the anonymous reviewers for their comments and suggestions to our manuscript. This project was supported by the Texas Tech University new faculty start-up Grant, and by DOE under agreement No. DE-FC03-03NA00144.

PY - 2006/9

Y1 - 2006/9

N2 - The high-pressure behavior of molybdenum disulfide (MoS2) has been investigated using an energy dispersive synchrotron X-ray diffraction method in a diamond anvil cell to 38.8 GPa at room temperature. It is found that the c-axis compression ratio is about three times larger than a-axis at pressures below 10 GPa. It gradually decreases with increasing pressure, and reduces to two times above 28.9 GPa. The reduction of c-axis with pressure displayed a discontinuity between 20.5 and 28.9 GPa. This may result from a phase transformation. The experimental pressure-volume data below 20.5 GPa were fitted with the third-order Birch-Murnaghan equation of state, and the bulk modulus was obtained as K0T=53.4±1 GPa and its pressure derivative as K′0T=9.2±0.4.

AB - The high-pressure behavior of molybdenum disulfide (MoS2) has been investigated using an energy dispersive synchrotron X-ray diffraction method in a diamond anvil cell to 38.8 GPa at room temperature. It is found that the c-axis compression ratio is about three times larger than a-axis at pressures below 10 GPa. It gradually decreases with increasing pressure, and reduces to two times above 28.9 GPa. The reduction of c-axis with pressure displayed a discontinuity between 20.5 and 28.9 GPa. This may result from a phase transformation. The experimental pressure-volume data below 20.5 GPa were fitted with the third-order Birch-Murnaghan equation of state, and the bulk modulus was obtained as K0T=53.4±1 GPa and its pressure derivative as K′0T=9.2±0.4.

KW - C. High pressure

KW - C. X-ray diffraction

KW - D. Equations-of-state

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DO - 10.1016/j.jpcs.2006.05.058

M3 - Article

AN - SCOPUS:33748152362

SN - 0022-3697

VL - 67

SP - 1914

EP - 1917

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

IS - 9-10

ER -

X-ray diffraction study of molybdenum disulfide to 38.8 GPa

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