Two-dimensional frustrated Ising model with four phases
نویسندگان
چکیده
منابع مشابه
Ising Model with Four Phases
In this paper we consider a d = 2 random Ising system on a square lattice with nearest neighbour interactions. The disorder is short range correlated and asymmetry between the vertical and the horizontal direction is admitted. More precisely, the vertical bonds are supposed to be non random while the horizontal bonds alternate: one row of all non random horizontal bonds is followed by one row w...
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Calculation of the scattering phase shift is important to understand scatterings and decays of hadrons. The phase shift in I = 2 ππ scattering system [3] was evaluated with the finite volume method [1,2] derived by Lüscher. In the finite volume method two-particle wave function plays an important role, because the phase shift is extracted by the wave function. Study of the wave function was car...
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Investigating various spin-1/2 systems in two dimensions (2d), by means of exact diagonalization (ED) on small samples of N spins, we have found, up to now, four kinds of antiferromagnetic phases at T=0. Two of them display long range order (LRO): Néel or Valence Bond Crystal (VBC) LRO. The others are two different Spin-Liquids. The Néel case may be qualified as semi-classical: it is a groundst...
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8 we have found critical exponents very similar to those of the pure Ising model. We have found that the value of the critical exponents show that for lattices up to V = 32 4 the system, for p = 0:3, is not described by the mean eld theory, as one might have believed. Moreover the critical exponents that we have found are very near to those of the pure percolation. A possible explanation would ...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 1997
ISSN: 1063-651X,1095-3787
DOI: 10.1103/physreve.56.2751