Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Meeting experimental challenges to physics of network glasses: assessing
  role of sample homogeneity   We introduce a Raman profiling method to track homogenization of
Ge$_x$Se$_{100-x}$ melts in real time, and show that 2 gram melts reacted at
950{\deg}C in high vacuum homogenize in 168 hours on a scale of 10{\mu}m.
Homogenization of melts is precursive to self-organization of glasses. In the
present glasses, compositional variation of Raman active corner-sharing mode
frequency of GeSe$_4$ units, molar volumes, and the enthalpy of relaxation at
Tg, reveal the rigidity (xc(1)= 19.5(3)%) and the stress (xc(2) = 26.0(3)%)
transitions to be rather sharp ({\Delta}x < 0.6%). These abrupt elastic phase
transitions are intrinsic to these materials and have a direct bearing on
physics of glasses.

20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex