X-ray diffraction study of molybdenum diselenide to 35.9 GPa

Resul Aksoy; Emre Selvi; Yanzhang Ma

doi:10.1016/j.jpcs.2008.03.020

X-ray diffraction study of molybdenum diselenide to 35.9 GPa

Resul Aksoy, Emre Selvi, Yanzhang Ma

Mechanical Engineering

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16 Scopus citations

Abstract

In situ high-pressure angle dispersive synchrotron X-ray diffraction studies of molybdenum diselenide (MoSe₂) were carried out in a diamond-anvil cell to 35.9 GPa. No evidence of a phase transformation was observed in the pressure range. By fitting the pressure-volume data to the third-order Birch-Murnaghan equation of state, the bulk modulus, K_0T, was determined to be 45.7±0.3 GPa with its pressure derivative, K′_0T, being 11.6±0.1. It was found that the c-axis decreased linearly with pressure at a slope of -0.1593 when pressures were lower than 10 GPa. It showed different linear decrease with the slope of a -0.0236 at pressures higher than 10 GPa.

Original language	English
Pages (from-to)	2138-2140
Number of pages	3
Journal	Journal of Physics and Chemistry of Solids
Volume	69
Issue number	9
DOIs	https://doi.org/10.1016/j.jpcs.2008.03.020
State	Published - Sep 2008

Keywords

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

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10.1016/j.jpcs.2008.03.020

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title = "X-ray diffraction study of molybdenum diselenide to 35.9 GPa",

abstract = "In situ high-pressure angle dispersive synchrotron X-ray diffraction studies of molybdenum diselenide (MoSe2) were carried out in a diamond-anvil cell to 35.9 GPa. No evidence of a phase transformation was observed in the pressure range. By fitting the pressure-volume data to the third-order Birch-Murnaghan equation of state, the bulk modulus, K0T, was determined to be 45.7±0.3 GPa with its pressure derivative, K′0T, being 11.6±0.1. It was found that the c-axis decreased linearly with pressure at a slope of -0.1593 when pressures were lower than 10 GPa. It showed different linear decrease with the slope of a -0.0236 at pressures higher than 10 GPa.",

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

author = "Resul Aksoy and Emre Selvi and Yanzhang Ma",

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. This research was supported by DOE (Agreement no. DE-FC03-03NA00144) and NSF (Grant no. DMR-0619215)).",

year = "2008",

month = sep,

doi = "10.1016/j.jpcs.2008.03.020",

language = "English",

volume = "69",

pages = "2138--2140",

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

issn = "0022-3697",

number = "9",

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T1 - X-ray diffraction study of molybdenum diselenide to 35.9 GPa

AU - Aksoy, Resul

AU - Selvi, Emre

AU - Ma, Yanzhang

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. This research was supported by DOE (Agreement no. DE-FC03-03NA00144) and NSF (Grant no. DMR-0619215)).

PY - 2008/9

Y1 - 2008/9

N2 - In situ high-pressure angle dispersive synchrotron X-ray diffraction studies of molybdenum diselenide (MoSe2) were carried out in a diamond-anvil cell to 35.9 GPa. No evidence of a phase transformation was observed in the pressure range. By fitting the pressure-volume data to the third-order Birch-Murnaghan equation of state, the bulk modulus, K0T, was determined to be 45.7±0.3 GPa with its pressure derivative, K′0T, being 11.6±0.1. It was found that the c-axis decreased linearly with pressure at a slope of -0.1593 when pressures were lower than 10 GPa. It showed different linear decrease with the slope of a -0.0236 at pressures higher than 10 GPa.

AB - In situ high-pressure angle dispersive synchrotron X-ray diffraction studies of molybdenum diselenide (MoSe2) were carried out in a diamond-anvil cell to 35.9 GPa. No evidence of a phase transformation was observed in the pressure range. By fitting the pressure-volume data to the third-order Birch-Murnaghan equation of state, the bulk modulus, K0T, was determined to be 45.7±0.3 GPa with its pressure derivative, K′0T, being 11.6±0.1. It was found that the c-axis decreased linearly with pressure at a slope of -0.1593 when pressures were lower than 10 GPa. It showed different linear decrease with the slope of a -0.0236 at pressures higher than 10 GPa.

KW - C. High pressure

KW - C. X-ray diffraction

KW - D. Equations-of-state

UR - http://www.scopus.com/inward/record.url?scp=50949117461&partnerID=8YFLogxK

U2 - 10.1016/j.jpcs.2008.03.020

DO - 10.1016/j.jpcs.2008.03.020

M3 - Article

AN - SCOPUS:50949117461

VL - 69

SP - 2138

EP - 2140

JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

SN - 0022-3697

IS - 9

ER -

X-ray diffraction study of molybdenum diselenide to 35.9 GPa

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Keywords

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