Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fermi arcs and the nature of carriers in cuprate HTSC   Here we suggest a simple physical model of HTSC cuprates that provides
qualitative explanation of the main features of these compounds, including the
nature of Fermi arcs, pseudogap anomalies and the origin of free carriers.
According to this model, the unusual properties of HTSC cuprates result from
their unique electronic structure favourable for the formation of diatomic
negative-U centers (NUCs) and realization of an unusual mechanism of
electron-electron interaction.

32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
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The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
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The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
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The categories of this paper are: mtrl-th
2
The categories of this paper are: math
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The categories of this paper are: supr-con