Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strain-Engineering Anisotropic Electrical Conductance of Phosphorene and
  Few-Layer Black Phosphorus   Newly fabricated monolayer phosphorene and its few-layer structures are
expected to be promising for electronic and optical applications because of
their finite direct band gaps and sizable but anisotropic electronic mobility.
By first-principles simulations, we show that this unique anisotropic
conductance can be controlled by using simple strain conditions. With the
appropriate biaxial or uniaxial strain, we can rotate the preferred conducting
direction by 90 degrees. This will be of useful for exploring quantum Hall
effects, and exotic electronic and mechanical applications based on
phosphorene.

27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph