Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Topological Phase Transition in an Archetypal f-electron Correlated
  System: Ce   A typical f-electron Kondo lattice system Ce exhibits the well-known
isostructural transition, the so-called gamma-alpha transition, accompanied by
an enormous volume collapse. Most interestingly, we have discovered that a
topological-phase transition also takes place in elemental Ce, concurrently
with the gamma-alpha transition. Based on the dynamical mean-field theory
approach combined with density functional theory, we have unravelled that the
non-trivial topology in alpha-Ce is driven by the f-d band inversion, which
arises from the formation of coherent 4f band around the Fermi level. We
captured the formation of the 4f quasi-particle band that is responsible for
the Lifshitz transition and the non-trivial Z2 topology establishment across
the phase boundary. This discovery provides a concept of 'topology switch' for
topological Kondo systems. The 'on' and 'off' switching knob in Ce is versatile
in a sense that it is controlled by available pressure (around 1 GPa) at room
temperature.

15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th