Influence of Spin Fluctuations Upon Heat Capacity of 2D Fermi Liquid Formed on Hectorite
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1573-7357
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| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Physics
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| Notes: |
Abstract We measured low-temperature heat capacities of two-dimensional Fermi liquid (2D FL) formed on Hectorite down to 15mK. At a coverage where mean atomic distance is comparable to that of bulk 3 He liquid, we found that the temperature dependence deviates considerably from the expected linearity. To account for the deviation we carried through integrals including RPA spin susceptibility for the Stoner-Hubbard(SH) or the Landau's Fermi liquid (LFL) models over the effectively entire, energy-momentum space without imposing the paramagnon approximation or the like. We found numerically that the spin fluctuation develops a T 2 correction at T〈T* which, at T〉T*, is taken over by a Tlog T term where T* is some hundredths of T F . With these corrections we are able to interprete the data and have determined the parameters for each model consistently at the densities observed.
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| Type of Medium: |
Electronic Resource
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| URL: |