Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Charge Transport in a Zn-Porphyrin single molecule junction   We have investigated charge transport in ZnTPPdT-Pyr molecular junctions
using the lithographic MCBJ technique at room temperature and cryogenic
temperature (6K). We combined low-bias statistical measurements with
spectroscopy of the molecular levels using I(V) characteristics. This
combination allows us to characterize the transport in a molecular junction in
detail. This complex molecule can form different junction configurations, which
is observed in trace histograms and in current-voltage (I(V)) measurements.
Both methods show that multiple stable single-molecule junction configurations
can be obtained by modulating the inter-electrode distance. In addition we
demonstrate that different ZnTPPdT-Pyr junction configurations can lead to
completely different spectroscopic features with the same conductance values.
We show that statistical low-bias conductance measurements should be
interpreted with care, and that the combination with I(V) spectroscopy
represents an essential tool for a more detailed characterization of the charge
transport in a single molecule.

15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci