Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Memory of multiple aging stages above the freezing temperature in the
  relaxor ferroelectric PLZT   The dynamic dielectric susceptibility and elastic compliance of the relaxor
ferroelectric PLZT 9/65/35 have been measured under different cooling and
heating protocols, in order to study aging and memory. The memory of multiple
aging stages has been found (several dips in the susceptibility curves on
heating), as in spin glass systems below the glass transition. Remarkably, in
PLZT the memory is retained also above the freezing temperature deduced from
the dynamic susceptibilities. The results are discussed in the light of the
existing models of aging and memory in spin and dipolar glasses.

36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio