Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Carrier mediated reduction of stiffness in nanoindented crystalline
  Si(100)   We report the observation of carrier mediated decrease in the stiffness of
crystalline (c)-Si(100) under nanoindentation. The apparent elastic modulii of
heavily dopes (1E21 cm-3) p- and n-type c-Si are observed to be lower by 5.-7.5
percent that the estimated value for intrinsic (1E14 cm-3) c-Si. The deviation
observed with respect to elastic modulus remarkably matches with the estimated
value while considering the electronic elastic strain effect on carrier
concentration as an influence of negative pressure coefficient of band gap for
Si. The value is predominantly higher than the reported value of a decrease of
1-3 percent in stiffness as an effect of impurity in c-Si.

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The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin