Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Atypical thermodynamic behavior of Ce compounds in the vicinity of zero
  temperature Critical Points   A systematic analysis of thermodynamic properties performed on Ce-base
exemplary compounds allows to identify different types of behaviors as the
system approaches the quantum critical region. They are recognized in the
respective magnetic phase boundaries (T_{N,C}(x)) as a change from the
classical negative curvature to a linear composition ($x$) dependence, the
occurrence of a critical point or the evanescence at finite temperature under
pressure at finite temperature. In the first case, an anomalous reduction of
the entropy S_m respect to the S_m = RLn2 value (expected for the usual
Ce-magnetic doublet ground state) is observed around x_{cr}, and analyzed
taking profit of detailed studies performed on CeIn_{3-x}Sn_x alloys. As
expected from Maxwell relations, the volume variation V_0(x) at T=>0 also shows
a non-monotonous behavior around x_{cr}.
  Different regimes in the entropy variation of the ordered phase (S_{MO}) are
recognized. Only in the former case S_{MO}=> 0 continuously as T_{N,C}=>0,
whereas in the second S_{MO}(x,B) remains constant till a first order
transition occurs. In the third case, the degrees of freedom of the MO phase
are progressively transferred to the heavy fermion component as indicated by
the decreasing C_m(T_N) jump which vanishes at finite temperature.

12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph