Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non linear transport properties of an insulating YBCO nano-bridge   We have investigated the transport properties of an insulating
sub-micrometric YBa2Cu3O7-d bridge, patterned on a thin film. As expected for a
variable-range-hopping insulator, transport is found non linear. The reduced
dimension allows for the observation of an individual fluctuator generating
random telegraph noise, which dynamics could be explored as a function of the
temperature and transport current. Some recordings clearly exhibit three levels
fluctuating resistance, with comparable level separation and correlated
dynamics, which likely result from the existence of two states or correlated
clustered charge traps.

16
The categories of this paper are: stat
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
31
The categories of this paper are: ao-sci
2
The categories of this paper are: math
3
The categories of this paper are: physics
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th