On the nature of screening in Voorn-Overbeek type theories
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
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2020
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| _version_ | 1866914838220898304 |
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| author | Kumari, Sunita Dwivedi, Shikha Podgornik, Rudolf |
| author_facet | Kumari, Sunita Dwivedi, Shikha Podgornik, Rudolf |
| contents | By using the recently formulated Legendre transform approach to the thermodynamics of charged systems, we explore the general form of the screening length in the Voorn-Overbeek type theories, that remains valid also in the cases where the entropy is not given by the ideal gas form as in the Debye-Huckel theory. The screening length consistent with the non-electrostatic terms in the free energy Ansatz for the Flory-Huggins and Voorn-Overbeek type theories, derived from the local curvature properties of the Legendre transform, has distinctly different behavior than the often invoked standard Debye screening length, though it reduces to it in some limiting cases. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2012_13503 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | On the nature of screening in Voorn-Overbeek type theories Kumari, Sunita Dwivedi, Shikha Podgornik, Rudolf Chemical Physics Soft Condensed Matter Biological Physics By using the recently formulated Legendre transform approach to the thermodynamics of charged systems, we explore the general form of the screening length in the Voorn-Overbeek type theories, that remains valid also in the cases where the entropy is not given by the ideal gas form as in the Debye-Huckel theory. The screening length consistent with the non-electrostatic terms in the free energy Ansatz for the Flory-Huggins and Voorn-Overbeek type theories, derived from the local curvature properties of the Legendre transform, has distinctly different behavior than the often invoked standard Debye screening length, though it reduces to it in some limiting cases. |
| title | On the nature of screening in Voorn-Overbeek type theories |
| topic | Chemical Physics Soft Condensed Matter Biological Physics |
| url | https://arxiv.org/abs/2012.13503 |