Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum phase transition and destruction of Kondo effect in pressurized
  SmB6   SmB6 is a promising candidate material that promises to elucidate the
connection between strong correlations and topological electronic states, which
is a major challenge in condensed matter physics. The electron correlations are
responsible for the development of multiple gaps in SmB6, whose elucidation is
sorely needed. Here we do so by studying the evolutions of the gaps and other
corresponding behaviors under pressure. Our measurements of the valence, Hall
effect and electrical resistivity clearly identify the gap which is associated
with the bulk Kondo hybridization and, moreover, uncover a pressure-induced
quantum phase transition from the putative topological Kondo insulating state
to a Fermi-liquid state at ~4 GPa. We provide the evidences for the transition
by a jump of inverse Hall coefficient, a diverging tendency of the
electron-electron scattering coefficient and, thereby, a destruction of the
Kondo entanglement in the ground state. These effects take place in a
mixed-valence background. Our results raise the new prospect for studying
topological electronic states in quantum critical materials settings.

35
The categories of this paper are: mtrl-th
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
19
The categories of this paper are: eess
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph