Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Carrier density independent scattering rate in SrTiO3-based electron
  liquids   We examine the carrier density dependence of the scattering rate in two- and
three-dimensional electron liquids in SrTiO3 in the regime where it scales with
T^n (T is the temperature and n <= 2) in the cases when it is varied by
electrostatic control and chemical doping, respectively. It is shown that the
scattering rate is independent of the carrier density. This is contrary to the
expectations from Landau Fermi liquid theory, where the scattering rate scales
inversely with the Fermi energy (E_F). We discuss that the behavior is very
similar to systems traditionally identified as non-Fermi liquids (n < 2). This
includes the cuprates and other transition metal oxide perovskites, where
strikingly similar density-independent scattering rates have been observed. The
results indicate that the applicability of Fermi liquid theory should be
questioned for a much broader range of correlated materials and point to the
need for a unified theory.

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The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics