Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Architecture of nanoscale ferroelectric domains in GaMo4S8   Local-probe imaging of the ferroelectric domain structure and auxiliary bulk
pyroelectric measurements were conducted at low temperatures with the aim to
clarify the essential aspects of the orbitally driven phase transition in
GaMo4S8, a lacunar spinel crystal that can be viewed as a spin-hole analogue of
its GaV4S8 counterpart. We employed multiple scanning probe techniques combined
with symmetry and mechanical compatibility analysis to uncover the hierarchical
domain structures, developing on the 10-100 nm scale. The identified domain
architecture involves a plethora of ferroelectric domain boundaries and
junctions, including primary and secondary domain walls in both electrically
neutral and charged configurations, and topological line defects transforming
neutral secondary walls into two oppositely charged ones.

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The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex