Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Wilson's ratio and the spin splitting of magnetic oscillations in
  quasi-two-dimensional metals   A simple consistency check is proposed for the Fermi liquid description of
the low-temperature properties of quasi-two-dimensional metals. In a
quasi-two-dimensional Fermi liquid the Zeeman splitting of magnetic
oscillations can be used to determine g^*, the gyro-magnetic ratio which is
renormalised by many-body effects. It is shown that g^*/g is equal to Wilson's
ratio R, the dimensionless ratio of the low-temperature spin susceptibility to
the specific heat coefficient. Measured values of g^*/g and R are compared for
the layered perovskite Sr2RuO4 and for a range of organic metals based on the
BEDT-TTF molecule. It is also shown that the Pauli paramagnetic limiting
magnetic field, at which singlet superconductivity should be destroyed by the
Zeeman splitting of the electron spins, is changed from the values given by BCS
theory by a factor of g^*/g.

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The categories of this paper are: hep-ex
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The categories of this paper are: supr-con
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
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The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph