Thickness of the Surface of Liquid Argon near the Triple Point
Thickness of the Surface of Liquid Argon near the Triple Point
复制标题
三相点附近液氩表面厚度
DOI：
10.1103/physrevlett.43.2016
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发表时间：
1979
影响因子：
8.6
通讯作者：
D. Beaglehole
中科院分区：
文献类型：
--
作者：
D. Beaglehole
测得90 K时液氩汽液界面的椭圆系数ρ× 104 = 5.7±0.4，120 K时上升到8.8±0.6。假设界面区域中的费米密度分布和介电常数的各向同性，这产生10%-90%的界面厚度t（90 K）= 7.9±0.5 μ m和t（120 K）= 15.2±1.0 μ m，在光波长的表面尺寸上平均。测量与预测进行比较，并强调理论的不确定性。
The coefficient of ellipticity of the liquid-vapor interface of liquid argon has been measured to be ρ× 10 4= 5.7±0.4 at 90 K, rising to 8.8±0.6 at 120 K. Assuming a Fermi density profile and isotropy of the dielectric constant in the interface region, this yields a 10%-90% interface thickness t (90 K)= 7.9±0.5 Å and t (120 K)= 15.2±1.0 Å, averaged over a surface dimension of the wavelength of light. The measurement is compared with predictions, and theoretical uncertainties are emphasised.