Surface-induced order in liquid metals and binary alloys

DiMasi, Elaine; Tostmann, H.; Shpyrko, Oleg; Deutsch, Moshe; Pershan, Peter S.; Ocko, B. M.

doi:10.1088/0953-8984/12/8a/325

Cited by 32 publications

(39 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4 In addition, the thickness of the wetting film is corroborated by independent grazing incidence diffraction experiments resolving the in-plane structure which will be reported elsewhere. 18 The wetting film in this Coulomb liquid with short-range interactions is considerably thinner than wetting films that have been observed in dielectric liquids with long-range interactions. 3,19 An important question concerning the thickness of a wetting film is whether the wetting film has been investigated in equilibrium.…”

Section: Resultsmentioning

confidence: 73%

Microscopic Structure of the Wetting Film at the Surface of Liquid Ga-Bi Alloys

et al. 2000

View full text Add to dashboard Cite

X-ray reflectivity measurements of the binary liquid Ga-Bi alloy reveal a dramatically different surface structure above and below the monotectic temperature Tmono = 222• C. A Gibbs-adsorbed Bi monolayer resides at the surface at both regimes. However, a 30Å thick, Bi-rich wetting film intrudes between the Bi monolayer and the Ga-rich bulk for T > Tmono. The internal structure of the wetting film is determined withÅ resolution, showing a theoretically unexpected concentration gradient and a highly diffuse interface with the bulk phase.

show abstract

Section: Resultsmentioning

confidence: 73%

Microscopic Structure of the Wetting Film at the Surface of Liquid Ga-Bi Alloys

et al. 2000

View full text Add to dashboard Cite

show abstract

“…X-ray and neutron reflectivity have been extensively used to determine the density profiles at the free surfaces of many liquids [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] including water, 22,25 and also at liquid-solid [26][27][28] and liquidliquid [29][30] interfaces. These probes are sensitive to electron density and scattering length density respectively, and for a known material these are both measures of the local mass density.…”

Section: Introductionmentioning

confidence: 99%

What x rays can tell us about the interfacial profile of water near hydrophobic surfaces

et al. 2013

View full text Add to dashboard Cite

The free surface of water, and the interface between water and a hydrophobic surface, both have positive interface energies. The water density near a free surface drops below the bulk density, and thus it is expected that water near a hydrophobic surface will also show a density depletion.However, efforts by multiple groups to detect and characterize the predicted 'gap' at waterhydrophobic interfaces have produced contradictory results. We have studied the interface between water and fluoroalkylsilane self-assembled monolayers using specular X-ray reflectivity, and analyzed the parameter-space landscapes of the merit functions being minimized by data fitting. This analysis yields a better understanding of confidence intervals than the customary process of reporting a unique 'best' fit. We conclude that there are unambiguous gaps at water-hydrophobic interfaces when the hydrophobic monolayer is more densely packed.

show abstract

“…Into the liquid phase bulk at a distance of about two atomic diameters the electrons density reduces to the value of the liquid bulk. Investigating the binary alloys of liquid metals Ga-Bi [12][13][14][15] one reveals at the surface the availability of a Bi monolayer. For T > T mono = 222…”

Section: Introductionmentioning

confidence: 99%

Processes in phase boundary region during liquid phase growth

Peev

2013

Cryst. Res. Technol.

View full text Add to dashboard Cite

Key words liquid phase growth, phase boundary region.The behavior of components within the phase boundary region during liquid phase growth is the subject of the present article. Based on the supposition that the phase boundary is a structured region, repeating the periodicity of the substrate, the distribution of different components within the phase boundary is considered. Assuming that the value of the supersaturation at the upper end of the phase boundary defines the growth rate of the compound, a relation has been derived, concerning the extension of the phase boundary. The case of liquid phase epitaxial growth of GaAs is considered and an effort for evaluation of the phase boundary extension is undertaken. The linear dependence of the stationary growth rate on the cooling rate, predicted previously, is proved experimentally.

show abstract

Surface-induced order in liquid metals and binary alloys

Cited by 32 publications

References 18 publications

Microscopic Structure of the Wetting Film at the Surface of Liquid Ga-Bi Alloys

Microscopic Structure of the Wetting Film at the Surface of Liquid Ga-Bi Alloys

What x rays can tell us about the interfacial profile of water near hydrophobic surfaces

Processes in phase boundary region during liquid phase growth

Contact Info

Product

Resources

About