In situ X-ray diffraction study of melting in gold contacts to gallium arsenide

AbstractX-ray diffraction was used in situ to study the phase transitions which occurred in 1500 Å Au/GaAs(100) upon heating and cooling. The reaction between Au and GaAs took the form Au + Ga → α Au-Ga. Upon heating, α Au-Ga completely dissolved in liquid Au-Ga. Upon subsequent cooling, β Au-Ga (or Au7Ga2) formed. In 1 atm of nitrogen, phase transitions were observed reversibly at 525 ± 25°C (due to the complete dissolution of α Au-Ga upon heating) and 415 ± 5°C (due to the peritectic transformation of β Au-Ga to α Au-Ga and liquid Au-Ga upon heating). In a vacuum of 425 μ (0.031 Kg/2m) similar phase transitions were observed at 425 ± 25°C and 387 ± 13°C, respectively.

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In situ X-ray diffraction study of the effects of germanium and nickel concentrations on melting in gold-based contacts to gallium arsenide

Thin Solid Films ◽

10.1016/0040-6090(87)90283-5 ◽

1987 ◽

Vol 147 (2) ◽

pp. 177-192 ◽

Cited By ~ 15

Author(s):

Taeil Kim ◽

D.D.L. Chung

Keyword(s):

Gallium Arsenide ◽

Diffraction Study ◽

X Ray Diffraction ◽

X Ray

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Thermal expansion of ellinaite (β-CaCr2O4): an in-situ high temperature X-ray diffraction study

Physics and Chemistry of Minerals ◽

10.1007/s00269-020-01126-2 ◽

2021 ◽

Vol 48 (1) ◽

Author(s):

Weihong Xue ◽

Kuan Zhai ◽

Shuangmeng Zhai

Keyword(s):

Thermal Expansion ◽

High Temperature ◽

Diffraction Study ◽

X Ray Diffraction ◽

X Ray

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In situ time resolved wide angle X-ray diffraction study of nanotube carpet growth: Nature of catalyst particles and progressive nanotube alignment

Carbon ◽

10.1016/j.carbon.2015.01.046 ◽

2015 ◽

Vol 87 ◽

pp. 246-256 ◽

Cited By ~ 10

Author(s):

Périne Landois ◽

Mathieu Pinault ◽

Stéphan Rouzière ◽

Dominique Porterat ◽

Cristian Mocuta ◽

...

Keyword(s):

Diffraction Study ◽

Wide Angle ◽

X Ray Diffraction ◽

Time Resolved ◽

X Ray

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Structural evolution of NASICON-type Li1+xAlxGe2−x(PO4)3 using in situ synchrotron X-ray powder diffraction

Journal of Materials Chemistry A ◽

10.1039/c6ta00402d ◽

2016 ◽

Vol 4 (20) ◽

pp. 7718-7726 ◽

Cited By ~ 39

Author(s):

Dorsasadat Safanama ◽

Neeraj Sharma ◽

Rayavarapu Prasada Rao ◽

Helen E. A. Brand ◽

Stefan Adams

Keyword(s):

Solid Electrolyte ◽

Diffraction Study ◽

Powder Diffraction ◽

Structural Evolution ◽

X Ray Diffraction ◽

X Ray ◽

Nasicon Type ◽

Precursor Glass

In situ synchrotron X-ray diffraction study of the synthesis of solid-electrolyte Li1+xAlxGe2−x(PO4)3 (LAGP) from the precursor glass reveals that an initially crystallized dopant poor phase transforms into the Al-doped LAGP at 800 °C.

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