Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electronics without bridging components   We propose a new paradigm of electronic devices based only on two electrodes
separated by a gap, i.e. without any functional element bridging them. We use a
tight-binding model to show that, depending on the type of material of the
electrodes and its structure, several electronic functionalities can be
achieved: ohmic behaviour, rectification, negative differential resistance,
spin-filtering and magnetoresistance. In particular, we show that it is
possible to deliver a given functionality by changing the coupling between the
surface and bulk states and between the surface states across the gap, which
dramatically changes the current-voltage characteristics. These results prove
that it is possible to have functional electronic and spintronic elements on
the nanoscale without having physical components bridging the electrodes.

11
The categories of this paper are: hep-lat
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
16
The categories of this paper are: stat
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph