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Phase Transitions Microscopic Model | | V.Stepanov
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14 Oct 2004 | | Journal: | Technical Physics Letters(2005) Volume 31, Issue 6 | | Subject: | Statistical Mechanics; Materials Science | cond-mat.stat-mech cond-mat.mtrl-sci | | Abstract: | The microscopic model in which nodes interacting with each other are statistical systems is introduced. The nodes conditions are connected with a string of distinct microscopic configurations and depend on external parameters (pressure and temperature). In this model the consequent description of first- and second-order phase transitions is carried out and their microscopic level distinctions are analyzed. It is shown that first-order transitions occur when the configuration entropy change at nodes under transitions from dipole-active (low-symmetric) state to symmetric one is more than ln4. Otherwise the second-order transitions take place. | | Source: | arXiv, cond-mat/0410359 | | Services: | Forum | Review | PDF | Favorites | |
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