Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Apparatus Design for Measuring of the Strain Dependence of the Seebeck
  Coefficient of Single Crystals   We present the design and construction of an apparatus that measures the
Seebeck coefficient of single crystals under in-situ tunable strain at
cryogenic temperatures. A home-built three piezostack apparatus applies
uni-axial stress to a single crystalline sample and modulates anisotropic
strain up to 0.7%. An alternating heater system and cernox sensor thermometry
measures the Seebeck coefficient along the uniaxial stress direction. To
demonstrate the efficacy of this apparatus, we applied uniaxial stress to
detwin single crystals of BaFe2As2 in the orthorhombic phase. The obtained
Seebeck coefficient anisotropy is in good agreement with previous measurements
using a mechanical clamp.

28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
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The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
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The categories of this paper are: eess
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-alg
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The categories of this paper are: solv-int
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The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an