Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Thermodynamic relevance of nanoscale inhomogeneities in
  Bi2Sr2CaCu2O8+delta   Using finite size scaling we analyze specific heat and London penetration
depth data to estimate the spatial extent of the superconducting grains in so
called high-quality Bi2Sr2CaCu2O8+delta single crystals. Contrary to the
previously investigated type II superconductors, YBa2Cu3O7+delta, MgB2,2H-NbSe2
and Nb77Zr23, where the lower bound for the length scale of the grains ranges
from 182 A to 814 A, our analysis uncovers nanoscale superconducting grains.
This clarifies the relevance of the spatial variations in the electronic
characteristics observed in underdoped Bi2Sr2CaCu2O8+delta with scanning
tunnelling microscopy for bulk and thermodynamic properties and establishes
their spatial extent.

22
The categories of this paper are: chao-dyn
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The categories of this paper are: eess
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int
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The categories of this paper are: alg-geom
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The categories of this paper are: comp-gas
9
The categories of this paper are: nlin