Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Manipulating composition gradient in cuprate superconducting thin films   The techniques of growing films with different parameters in single process
make it possible to build up a sample library promptly. In this work, with a
precisely controlled moving mask, we synthetized superconducting
La2-xCexCuO4+/-{\delta} combinatorial films on one SrTiO3 substrate with the
doping levels from x = 0.1 to 0.19. The monotonicity in doping along the
designed direction is verified by micro-region x-ray diffraction and electric
transport measurements. More importantly, by means of numerical simulation, the
real change of doping levels is in accordance with a linear gradient variation
of doping levels in the La2-xCexCuO4+/-{\delta} combinatorial films. Our
results indicate that it is promising to accurately investigate materials with
critical composition by combinatorial film technique.

31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org