Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interface states in two-dimensional electron systems with spin-orbital
  interaction   Interface states at a boundary between regions with different spin-orbit
interactions (SOIs) in two-dimensional (2D) electron systems are investigated
within the one-band effective mass method with generalized boundary conditions
for envelope functions. We have found that the interface states unexpectedly
exist even if the effective interface potential equals zero. Depending on the
system parameters, the energy of these states can lie in either or both
forbidden and conduction bands of bulk states. The interface states have chiral
spin texture similar to that of the edge states in 2D topological insulators.
However, their energy spectrum is more sensitive to the interfacial potential,
the largest effect being produced by the spin-dependent component of the
interfacial potential. We have also studied the size quantization of the
interface states in a strip of 2D electron gas with SOI and found an unusual
(non-monotonic) dependence of the quantization energy on the strip width.

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The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys