Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A new high pressure form of Ba3NiSb2O9   The interest in finding experimental realization of Quantum Liquid Spin
phases leads us to elaborate polycrystalline samples of the 6H-B phase of
Ba3NiSb2O9 . This structure shows Ni triangular planes and the first magnetic
characterizations confirm the absence of any magnetic order as expected for
QLS. The samples were synthesized by treatment under HP-HT of the 6H-A phase of
Ba3NiSb2O9. The optimized synthesis conditions were 2.5 GPa and 620{\deg}C. By
combining several technics as XRD, NPD and TEM we show that even the obtained
compound is in fact a new form of Ba3NiSb2O9, that corresponds to a new
stacking along c. This preserves the presence of Ni planes but results in a
loss of the hexagonal symmetry. The TEM is helpful to conclude to a trigonal
symmetry at a scale of 10nm.

18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc