Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Grain Boundary Segregation Transitions and Critical Phenomena in Binary
  Regular Solutions: A Systematics of Complexion Diagrams with Universal
  Characters   A systematics of grain boundary (GB) segregation transitions and critical
phenomena has been derived to expand the classical GB segregation theory. Using
twist GBs as an example, this study uncovers when GB layering vs. prewetting
transitions should occur and how they are related to one another. Moreover, a
novel descriptor, normalized segregation strength (phi_seg), is introduced. It
can represent several factors that control GB segregation, including strain and
bond energies, as well as misorientation for small-angle GBs (in a mean-field
approximation), which had to be treated separately in prior models. In a strong
segregation system with a large phi_seg, first-order layering transitions occur
at low temperatures and become continuous above GB roughing temperatures. With
reducing phi_seg, the layering transitions gradually merge and finally lump
into prewetting transitions without quantized layer numbers, akin to Cahn's
critical-point wetting model. Furthermore, GB complexion diagrams with
universal characters are constructed as the GB counterpart to the classical
exemplar of Pelton-Thompson regular-solution binary bulk phase diagrams.

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The categories of this paper are: atom-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: math-ph
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The categories of this paper are: math
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The categories of this paper are: mtrl-th
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The categories of this paper are: patt-sol
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The categories of this paper are: eess
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The categories of this paper are: nlin
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The categories of this paper are: chao-dyn
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The categories of this paper are: plasm-ph
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The categories of this paper are: supr-con
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The categories of this paper are: hep-lat
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: comp-gas