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My question is about 2-dimensional Fermi gas of electrons.

  1. What is magnetic susceptibility when $T<<T_F$ (where $T_F$ is Fermi Temperature)

    and,

  2. What is the ratio between Pauli and Curie spin susceptibilities?

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2  
This sounds a little like homework-- the calculation is straightforward if you know the Landau solution for a particle in a magnetic field (it is contained in most quantum mechanics textbooks) and the standard electron magnetic moment. –  Ron Maimon Jan 17 '12 at 5:45
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@RonMaimon: yes, it is. I'm new to this forum and was not familiar to the conventions. –  Shalandeh Jan 17 '12 at 6:00
    
@RonMaimon: could you be more specific? in which textbooks I can look them up? –  Shalandeh Jan 17 '12 at 6:03
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Start here. en.wikipedia.org/wiki/Landau_quantization . I am sure it's in Sakurai and Landau and Lifshitz, perhaps also in Dirac. –  Ron Maimon Jan 17 '12 at 6:24
    
Chapter 31 in "Solid State Physics" by Ashcroft and Mermin. –  Maksim Zholudev Jan 17 '12 at 14:30

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