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Prog. Theor. Phys. Vol. 65 No. 5 (1981) pp. 1493-1503

[ Full Text PDF : FREE ACCESS (430K) ]

Phase Transitions in Adsorbed Systems

Takao Ohta

Department of Physics, Kyushu University, Fukuoka 812

(Received December 12, 1980)

Abstract:

Possible phase transitions in adsorbed monolayers are discussed. Nature of the transitions is divided into two classes by a parameter p which is the ratio of an adsorbate lattice constant to a sbstrate lattice constant. When p is greater than some special value Pc, the system is described by a two-component sine-Gordon model and would exhibit two Kosterlitz Thouless like phase transitions as shown by Nelson and Halperin. On the other hand an orderdisorde transition would occur for p<pc. A two-componet Zp model is applied to clarify the transition. It is shown in the present approach that the transition is continuous for p≤2 while it becomes first order for 2<p<pc.


URL : http://ptp.ipap.jp/link?PTP/65/1493/
DOI : 10.1143/PTP.65.1493

[ Full Text PDF : FREE ACCESS (430K) ] Citation:

References:

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Citing Article(s) :

  1. Progress of Theoretical Physics Vol. 66 No. 6 (1981) pp. 2276-2279 :
    Critical Point of Two-Layered Potts Model Coupled with Four-Body Interaction
    Yoshio Matsuda

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