Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Correspondence: Reply to "On the understanding of current-induced spin
  polarization of 3D topological insulators"   We reported the first spin potentiometric measurement to electrically detect
spin polarization arising from spin-momentum locking in topological insulator
(TI) surface states using ferromagnet/tunnel barrier contacts [1]. This method
has been adopted to measure the current generated spin in other TI systems
[2-10], albeit with conflicting signs of the measured spin voltage
[1,2,4,6-10]. Tian et al. wish to use their model as presented in Ref. [4] to
determine the sign of the induced spin polarization, and thereby determine
whether the claims of various groups to have sampled the topologically
protected surface states in bulk TIs are correct. The central point of our
Reply is that the model as presented is incapable of doing so because it fails
to include separate physical contributions which independently effect the sign
of the spin polarization measured.

36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci