Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Thermal stimulated current response in cupric oxide single crystal thin
  films over a wide temperature range   Cupric oxide single crystal thin films were grown by plasma-assisted
molecular beam epitaxy. X-ray diffraction, Raman spectrum and in situ
reflection high-energy electron diffraction show that the thin films are 2x2
reconstructed with an in-plane compression and out-of-plane stretching. Thermal
stimulated current measurement indicates that the electric polarization
response presents in the special 2D cupric oxide single crystal thin film over
a wide temperature range from 130 K to near-room temperature. We infer that the
abnormal electric response involves the changing of phase transition
temperature induced by structure distortion, the spin frustration and magnetic
fluctuation effect of short-range magnetic order, or the combined action of
both two factors mentioned above. This work suggests a promising clue for
finding new room temperature single phase multiferroics or tuning phase
transition temperature.

22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas