Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effects of post-deposition annealing on the structure and magnetization
  of PLD grown Yttrium Iron Garnet films   We report on the recrystallization of 200 nm thick as-grown Yttrium Iron
Garnet (Y_3.4 Fe_4.6 O_12) films on (111) face of Gadolinium Gallium Garnet
(GGG) single crystals by post-deposition annealing. Epitaxial conversion of the
as-grown microcrystalline YIG films was seen after annealing at 800oC for more
than 30 minutes both in ambient oxygen as well as in air. The as-grown oxygen
annealed samples at 800oC for 60 minutes crystallize epitaxially and show
excellent figure-of-merit for saturation magnetization (MS = 3.3 {\mu}B/f.u.,
comparable to bulk value) and coercivity (HC ~ 1.1 Oe). The ambient air
annealing at 800oC with a very slow rate of cooling (2oC/min) results in a
double layer structure with a thicker unstrained epitaxial top layer having the
MS and HC of 2.9 {\mu}B/f.u. and 0.12 Oe respectively. The symmetric and
asymmetric Reciprocal space maps of both the samples reveal a locking of the
in-plane lattice of the film to the in-plane lattice of substrate, indicating a
pseudomorphic growth. The residual stress calculated by sin^2 {\psi} technique
is compressive in nature. The lower layer in air annealed sample is highly
strained, whereas, the top layer has negligible compressive stress.

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The categories of this paper are: dg-ga
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The categories of this paper are: q-alg
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The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
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The categories of this paper are: q-bio
1
The categories of this paper are: cs
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The categories of this paper are: ao-sci
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
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The categories of this paper are: alg-geom
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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn
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The categories of this paper are: astro-ph
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The categories of this paper are: comp-gas