Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Shear Stresses in Shock-Compressed Covalent Solids   Shear stresses are the driving forces for the creation of both point and
extended defects in crystals subjected to high pressures and temperatures.
Recently, we observed anomalous elastic materials response in shock-compressed
silicon and diamond in the course of our MD simulations and were able to relate
this phenomenon to non-monotonic dependence of shear stress on uniaxial
compression of the material. Here we report results of combined density
functional theory (DFT) and classical interatomic potentials studies of shear
stresses in shock compressed covalent solids such as diamond and silicon for
three low-index crystallographic directions, <100>, <110>, <111>. We observed a
non-monotonic dependence of DFT shear stresses for all three crystallographic
directions which indicates that anomalous elastic response of shock compressed
material is a real phenomenon and not an artifact of interatomic potentials
used in MD simulations.

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The categories of this paper are: adap-org
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The categories of this paper are: nlin
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The categories of this paper are: econ
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The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-th
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The categories of this paper are: gr-qc
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: solv-int
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The categories of this paper are: math
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The categories of this paper are: math-ph
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The categories of this paper are: q-alg
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The categories of this paper are: acc-phys