Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Novel features in the flux-flow resistivity of the heavy fermion
  superconductor PrOs$_{4}$Sb$_{12}$   We have investigated the electrical resistivity of the heavy fermion
superconductor PrOs$_{4}$Sb$_{12}$ in the mixed state. We found unusual double
minima in the flux-flow resistivity as a function of magnetic field below the
upper critical field for the first time, indicating double peaks in the pinning
force density ($F_{\rm P}$). Estimated $F_{\rm P}$ at the peak exhibits
apparent dependence on applied field direction; composed of two-fold and
four-fold symmetries mimicking the reported angular dependence of thermal
conductivity ($\kappa$). The result is discussed in correlation with the double
step superconducting (SC) transition in the specific heat and the multiple
SC-phases inferred from the angular dependence of $\kappa$.

23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
18
The categories of this paper are: econ
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas