The phase transitions of a newly proposed torsion X-Y model,
are studied with molecular dynamics. ForJ3 >0, the influence from J1 term is similar to the term.We found the Torsion X-Y Model and X-Y Model or Coupled X-Y Model all have the Kosterlitz-Thouless transition. (KT)
We also confirm that the KT transition is a second order transition , The distribution of angle £c start from dis-ordered to well-ordered. KT starts first before the randomly distributed £c shows preference and ends when the preference is merged.
For the J3 <0 case, the KT is also found in J3=-0.0167 and J3=-0.0334 The temperature for negative J3 is lower then that for positive J3 due to the resistant force to £c ordering from the coupled interaction.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0127103-144149 |
| Date | 27 January 2003 |
| Creators | Huang, Wen-Kuei |
| Contributors | Chie-Tong Kuo, I-Min Jiang, Wang-Chuang Kuo |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0127103-144149 |
| Rights | unrestricted, Copyright information available at source archive |
Page generated in 0.002 seconds