Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnetic field tuned superconductor-to-insulator transition at the
  LaAlO$_3$ /SrTiO$_3$ interface   We present a study of the magnetic field tuned superconductor-to-insulator
transition (SIT) in the electron gas that forms at the LaAlO$_3$/SrTiO$_3$
interface. We find that the magnetic field induces a transition into a weakly
insulating state, as is observed for the electrostatically tuned SIT at this
interface. Finite size scaling of the magnetoresistance yields the critical
exponent product $z\nu \simeq$ 7/3, indicating that the transition is governed
by quantum percolation effects. While such critical exponents have been
reported previously for high resistance films, they have not been reported for
a low resistance system like ours, with a maximum sheet resistance of $\approx$
1.5 k$\Omega$, much less than the quantum of resistance $R_Q \equiv h/4e^2 =
6.45$ k$\Omega$.

14
The categories of this paper are: math-ph
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci