Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Influence of Charge Order on the Ground States of TMTTF Molecular Salts   (TMTTF)2AsF6 and (TMTTF)2SbF6 are both known to undergo a charge ordering
phase transition, though their ground states are different. The ground state of
the first is Spin-Peierls, and the second is an antiferromagnet. We study the
effect of pressure on the ground states and the charge-ordering using 13C NMR
spectroscopy. The experiments demonstrate that the the CO and SP order
parameters are repulsive, and consequently the AF state is stabilized when the
CO order parameter is large, as it is for (TMTTF)2SbF6. An extension of the
well-known temperature/pressure phase diagram is proposed.

36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
1
The categories of this paper are: cs
2
The categories of this paper are: math