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  Self-generated disorder: from spin glasses to the glassy homopolymer globule

Rostiashvili, V. G., Migliorini, G., & Vilgis, T. A. (2002). Self-generated disorder: from spin glasses to the glassy homopolymer globule. Journal of Non-Crystalline Solids, 307, 199-207.

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資料種別: 学術論文

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 作成者:
Rostiashvili, V. G.1, 著者           
Migliorini, G.1, 著者           
Vilgis, Thomas A.1, 著者           
所属:
1MPI for Polymer Research, Max Planck Society, ou_1309545              

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 要旨: We have investigated the interrelation between spin glasses and structural glasses. Spin glasses in this case are p-spin interaction spin glasses (at p > 2) or Potts glasses which contain quenched disorder, whereas the structural glasses are here exemplified by the homopolymeric globule, which can be viewed as a liquid of connected units on nanoscales. It is argued that the homopolymeric globule problem can be mapped onto a disorder field theoretical model whose effective Hamiltonian resembles the corresponding one for the spin glass model. In this sense the disorder in the globule is self- generated (in contrast to spin glasses) and can be related with competing interactions (virial coefficients of different signs) and the chain connectivity. The work is aimed at giving a quantitative description of this analogy. We have investigated in the mean-field (MF) approximation the phase diagram of the homopolymeric globule where the transition line from the liquid to glassy globule is treated in terms of the replica symmetry breaking paradigm. The configurational entropy temperature dependence is also discussed. (C) 2002 Elsevier Science B.V. All rights reserved.

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言語: eng - English
 日付: 2002-09
 出版の状態: 出版
 ページ: -
 出版情報: -
 目次: -
 査読: 査読なし
 識別子(DOI, ISBNなど): eDoc: 28605
ISI: 000178038100028
 学位: -

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出版物名: Journal of Non-Crystalline Solids
  出版物の別名 : J. Non-Cryst. Solids
種別: 学術雑誌
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出版社, 出版地: -
ページ: - 巻号: 307 通巻号: - 開始・終了ページ: 199 - 207 識別子(ISBN, ISSN, DOIなど): ISSN: 0022-3093