Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Conductance Discontinuity on the Surface of a Topological Insulator with
  Magnetic Electrodes   Asymmetric electrical conductance is theoretically demonstrated on the
surface of a topological insulator (TI) in the limit of infinitesimally small
forward and reverse biases between two spin selective electrodes. The
discontinuous behavior relies on the spin-momentum interlocked nature of TI
surface electrons together with the resulting imbalance in the coupling
coefficients between the electrodes and TI surface states. The analysis is
based on a transmission matrix model that, in combination with a
phenomenological treatment for the diffusive limit, accounts for both ballistic
and scattered paths simultaneously. With the estimated conductance asymmetry
over a factor of 10, implementation in the ratchet-like applications and
low-voltage rectification circuits appears practicable.

11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org