Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Transport anomalies in the layered compound BaPt4Se6   We report a layered ternary selenide BaPt4Se6 featuring sesqui-selenide
Pt2Se3 layers sandwiched by Ba atoms. The Pt2Se3 layers in this compound can be
derived from the Dirac-semimetal PtSe2 phase with Se vacancies that form a
honeycomb structure. This structure results in a Pt (VI) and Pt (II)
mixed-valence compound with both PtSe6 octahedra and PtSe4 square net
coordination configurations. Temperature dependent electrical transport
measurements suggest two distinct anomalies: a resistivity crossover, mimic to
the metal-insulator (M-I) transition at ~150K, and a resistivity plateau at
temperatures below 10K. The resistivity crossover is not associated with any
structural, magnetic or charge order modulated phase transitions.
Magnetoresistivity, Hall and heat capacity measurements concurrently suggest an
existing hidden state below 5K in this system. Angle-resolved photoemission
spectroscopy measurements reveal a metallic state and no dramatic
reconstruction of the electronic structure up to 200K.

2
The categories of this paper are: math
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
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
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin