2014年
Glass phase in anisotropic surface model for membranes
2ND INTERNATIONAL CONFERENCE ON MATHEMATICAL MODELING IN PHYSICAL SCIENCES 2013 (IC-MSQUARE 2013)
- ,
- 巻
- 490
- 号
- 開始ページ
- 012062(1-4),
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 記事・総説・解説・論説等(国際会議プロシーディングズ)
- DOI
- 10.1088/1742-6596/490/1/012062
- 出版者・発行元
- IOP PUBLISHING LTD
A Finsler geometric surface model for membranes is studied by using the Monte Carlo simulation technique on connection-fixed triangle lattices with sphere topology. An inplane three-dimensional unit vector a is assumed to be the in-plane tilt variable of the surface. The interaction with a is described by the XY-model Hamiltonian. Since this variable a is considered as a vector field on the surface, a Finsler metric is defined by using a. We find that the model has three different phases. They change from the para-magnetic phase to the ferromagnetic and to the glass phases when the strength of the XY interaction increases. Both the para-magnetic and the glass phases are characterized by random configuration of a; the variable a randomly fluctuates in the para-magnetic phase while it is randomly frozen in the glass phase. We also find that the surface becomes spherical in both phases. On the contrary, in the ferro-magnetic phase the surface shape becomes tubular or discotic due to the anisotropic bending rigidity and surface tension coefficient, which are dynamically generated by ordered configurations of a.
- リンク情報
- ID情報
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- DOI : 10.1088/1742-6596/490/1/012062
- ISSN : 1742-6588
- Web of Science ID : WOS:000335909300062