Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two-dimensional electron gas tilt-induced Landau level crossings   This work elucidates the novel behavior found in a two-dimensional electron
gas (2DEG) under a tilted magnetic field in which the field's angle becomes the
dominant factor in tuning the spin-splitting rather than the strength of the
spin-orbit interaction. The 2DEG eigenvalues are derived with Rashba and Zeeman
interactions for various tilt angles and they show crossing-free levels except
at very high tilt. Moreover, concomitant with the crossings is the appearance
of beats in the 2DEG density of states. The crossings from different levels
occur consecutively at around 87^{\circ}. Similar new observations in
Shubnikov-de Haas experimental measurements by Hatke et al. [1] attributed such
phenomena to an in-plane-magnetic-field-induced increase in the effective mass.
We show here that this behavior is inherent to a 2DEG where spin-orbit
interaction and the in-plane magnetic field contribution are taken into
account.

36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc