New universality class in three dimensions? The antiferromagnetic RP^(2) model



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Ballesteros, H. G. and Fernández Pérez, Luis Antonio and Martín Mayor, Víctor and Muñoz Sudupe, Antonio (1996) New universality class in three dimensions? The antiferromagnetic RP^(2) model. Physics letters B, 378 (1-4). pp. 207-212. ISSN 0370-2693

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We present the results of a Monte Carlo simulation of the RP^(2) model in three dimensions with negative coupling. We observe a second order phase transition between the disordered phase and an antiferromagnetic, unfrustrated, ordered one. We measure, with a finite size scaling analysis, the thermal exponent, obtaining v = 0.784(g). We have found two magnetic-type relevant operators whose related YJ exponents are 0.038( 2) and 1.338( 8) respectively.

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© 1996 Elsevier Science B.V. We thank Alan Sokal for many enlightening discussions at the beginning of this work, specially regarding the finite size scaling techniques. We are also indebted to José Luis Alonso, Juan Jesús Ruiz-Lorenzo and Alfonso Tarancón. This work has been partially supported by CICyT AEN93-0604, AEN95-1284-E and AEN93-0776.

Uncontrolled Keywords:Nonlinear Sigma-models; Transitions; Helimagnets.
Subjects:Sciences > Physics
Sciences > Physics > Physics-Mathematical models
ID Code:41452
Deposited On:22 Feb 2017 09:14
Last Modified:22 Feb 2017 09:15

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