Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magnetic Field Effect on Crossover Temperature from Non-Fermi Liquid to
  Fermi Liquid Behavior in f^2-Impurity Systems with Crystalline-Electric-Field
  Singlet State Competing with Kondo-Yosida Singlet State   We investigate the magnetic field dependence of the physical properties of
f^2-configuration systems with a crystalline-electric field (CEF) singlet
ground state, which gives rise to a non- Fermi liquid (NFL) fixed point due to
the competition between the Kondo-Yosida singlet and CEF singlet states. On the
basis of the numerical renormalization group method, we find that the magnetic
field breaks this NFL fixed point via two mechanisms: one causing the
polarization of f-electrons and the other giving the "channel" anisotropy.
These two mechanisms induce a difference in the magnetic field dependence of
the characteristic temperature T_F^{*}(H), the crossover temperature from NFL
to Fermi-liquid behavior. While the polarization of f-electrons gives
T_F^{*}(H) \propto H^x (x\sim2.0), the "channel" anisotropy gives the
H-independent T_F^{*}(H). These two mechanisms cross over continuously at
approximately the crossover magnetic field H_c, where an anomalous H-dependence
of T_F^{*}(H) appears. Such T_F^{*}(H) well reproduces the NFL behaviors
observed in Th_{1-x}U_xRu_2Si_2. We also find that the H-dependence of the
resistivity and the magnetic susceptibility are in good agreement with the
experimental results of this material. These results suggest that the NFL
behaviors observed in Th_{1-x}U_xRu_2Si_2 can be understood if this material is
located in the CEF singlet side near the critical phase boundary between the
two singlet states.

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The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
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The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: econ
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The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
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The categories of this paper are: stat