Universal Scaling of the Neel Temperature of Near-Quantum-Critical Quasi-Two-Dimensional Heisenberg Antiferromagnets
| dc.creator | Yao, D. X. | |
| dc.creator | Sandvik, A. W. | |
| dc.date | 2006-06-13 | |
| dc.date.accessioned | 2026-07-07T07:48:36Z | |
| dc.date.available | 2026-07-07T07:48:36Z | |
| dc.description | We use a quantum Monte Carlo method to calculate the Neel temperature T_N of weakly coupled S=1/2 Heisenberg antiferromagnetic layers consisting of coupled ladders. This system can be tuned to different two-dimensional scaling regimes for T > T_N. In a single-layer mean-field theory, χ_s^{2D}(T_N)=(z_2J')^{-1}, where χ_s^{2D} is the exact staggered susceptibility of an isolated layer, J' the inter-layer coupling, and z_2=2 the layer coordination number. With a renormalized z_2, we find that this relationship applies not only in the renormalized-classical regime, as shown previously, but also in the quantum-critical regime and part of the quantum-disordered regime. The renormalization is nearly constant; k_2 ~ 0.65-0.70. We also study other universal scaling functions. | |
| dc.description | 4 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0606341 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0606341 | |
| dc.identifier | Phys. Rev. B 75, 052411 (2007) | |
| dc.identifier | doi:10.1103/PhysRevB.75.052411 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/124554 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Statistical Mechanics | |
| dc.title | Universal Scaling of the Neel Temperature of Near-Quantum-Critical Quasi-Two-Dimensional Heisenberg Antiferromagnets | |
| dc.type | text |