Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fermi surface of the Weyl type-II metallic candidate WP2   Weyl type-II fermions are massless quasiparticles that obey the Weyl equation
and which are predicted to occur at the boundary between electron- and
hole-pockets in certain semi-metals, i.e. the (W,Mo)(Te,P)$_2$ compounds. Here,
we present a study of the Fermi-surface of WP$_2$ \emph{via} the Shubnikov-de
Haas (SdH) effect. Compared to other semi-metals WP$_2$ exhibits a very low
residual resistivity, i.e. $\rho_0 \simeq 10$ n$\Omega$cm, which leads to
perhaps the largest non-saturating magneto-resistivity $(\rho(H))$ reported for
any compound. For the samples displaying the smallest $\rho_0$, $\rho(H)$ is
observed to increase by a factor of $2.5 \times 10^{7}$ $\%$ under $\mu_{0}H =
35$ T at $T = 0.35$ K. The angular dependence of the SdH frequencies is found
to be in very good agreement with the first-principle calculations when the
electron- and hole-bands are slightly shifted with respect to the Fermi level,
thus supporting the existence of underlying Weyl type-II points in WP$_2$.

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The categories of this paper are: patt-sol
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
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The categories of this paper are: nlin
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The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
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The categories of this paper are: stat