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[en] We study violations of finite-size scaling in the 2d square lattice quantum antiferromagnetic Heisenberg model. For small volumes and all spins S we find violations at moderate x ≡ ξ(L)/L that resemble the violations in the classical N-vector model for large N. We also see violations in the large x regime that rapidly diminish with increasing S, thus enabling extreme scaling
Journal
Nuclear Physics. B, Proceedings Supplements; ISSN 0920-5632; 
; CODEN NPBSE7; v. 106-107(1-3); p. 896-898
; CODEN NPBSE7; v. 106-107(1-3); p. 896-898