dorsal/arxiv
View SchemaElectron mobility maximum in dense argon gas at low temperature
| Authors | A. F. Borghesani |
|---|---|
| Categories | |
| ArXiv ID | physics/0102071 |
| URL | https://arxiv.org/abs/physics/0102071 |
Abstract
We report measurements of excess electron mobility in dense Argon gas at the two temperatures $T=152.15$ and 162.30 K, fairly close to the critical one ($T_c =150.7$ K), as a function of the gas density $N$ up to 14 atoms$\cdot$nm$^{-3}$ ($N_{c}=8.08$ atoms$\cdot$nm$^{-3}$). For the first time a maximum of the zero-field density-normalized mobility $\mu_{0}N$ has been observed at the same density where it was detected in liquid Argon under saturated vapor pressure conditions. The existence of the $\mu_{0}N$ maximum in the liquid is commonly attributed to electrons scattering off long-wavelength collective modes of the fluid, while for the low-density gas a density-modified kinetic model is valid. The presence of the $\mu_{0}N$ maximum also in the gas phase raises therefore the question whether the single scattering picture valid in the gas is valid even at liquid densities.
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"abstract": "We report measurements of excess electron mobility in dense Argon gas at the\ntwo temperatures $T=152.15$ and 162.30 K, fairly close to the critical one\n($T_c =150.7$ K), as a function of the gas density $N$ up to 14\natoms$\\cdot$nm$^{-3}$ ($N_{c}=8.08$ atoms$\\cdot$nm$^{-3}$). For the first time\na maximum of the zero-field density-normalized mobility $\\mu_{0}N$ has been\nobserved at the same density where it was detected in liquid Argon under\nsaturated vapor pressure conditions. The existence of the $\\mu_{0}N$ maximum in\nthe liquid is commonly attributed to electrons scattering off long-wavelength\ncollective modes of the fluid, while for the low-density gas a density-modified\nkinetic model is valid. The presence of the $\\mu_{0}N$ maximum also in the gas\nphase raises therefore the question whether the single scattering picture valid\nin the gas is valid even at liquid densities.",
"arxiv_id": "physics/0102071",
"authors": [
"A. F. Borghesani"
],
"categories": [
"physics.plasm-ph",
"physics.atom-ph"
],
"title": "Electron mobility maximum in dense argon gas at low temperature",
"url": "https://arxiv.org/abs/physics/0102071"
},
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