Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Superstrong nature of covalently bonded glass-forming liquids at select
  compositions   Variation of fragility (m) of specially homogenized GexSe100-x melts are
established from complex specific heat measurements, and show m(x) has a global
minimum at an extremely low value (m=14.8(0.5)) in the 21.5%<x<23% range of Ge.
Outside of that compositional range, m(x) then increases at first rapidly then
slowly to about m=25-30. By directly mapping melt stoichiometry as a function
of reaction time at a fixed temperature T>Tg, we observe a slowdown of
melt-homogenization by the super-strong melt compositions, 21.5%<x<23%. This
range furthermore appears to be correlated to the one observed between the
flexible and stressed rigid phase in network glasses. These spectacular
features underscore the crucial role played by topology and rigidity in the
properties of network-forming liquids and glasses which are highlighted when
fragility is represented as a function of variables tracking the effect of
rigidity. Finally, we investigate the fragility-glass transition temperature
relationship, and find that reported scaling laws do not apply in the flexible
phase, while being valid for intermediate and stressed rigid compositions.

25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom