From One to Two Dimensions: Magnetic Phases in Weakly Coupled Spin Ladders
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866912908847349760 |
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| author | Wuttig, Mateo Cárdenes Millis, Andrew J. |
| author_facet | Wuttig, Mateo Cárdenes Millis, Andrew J. |
| contents | A large variety of materials can be approximately described by means of spin-1/2 Heisenberg ladders. Here, the Density Matrix Renormalization Group (DMRG) algorithm together with a previously established numerical self-consistent mean-field approximation is used to investigate the magnetic properties of spin ladders coupled in a second dimension. The full ground state phase diagram including spin-gapped, antiferromagnetic, ferrimagnetic and fully polarized phases is presented as a function of interladder and intraladder coupling and magnetic field. Measurement of the dependence of magnetization on applied magnetic field is shown to enable location of a material on the phase diagram and determination of the Hamiltonian parameters. These results provide a practical route toward identifying and characterizing magnetic materials composed of coupled spin ladders. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2511_10503 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | From One to Two Dimensions: Magnetic Phases in Weakly Coupled Spin Ladders Wuttig, Mateo Cárdenes Millis, Andrew J. Strongly Correlated Electrons Other Condensed Matter A large variety of materials can be approximately described by means of spin-1/2 Heisenberg ladders. Here, the Density Matrix Renormalization Group (DMRG) algorithm together with a previously established numerical self-consistent mean-field approximation is used to investigate the magnetic properties of spin ladders coupled in a second dimension. The full ground state phase diagram including spin-gapped, antiferromagnetic, ferrimagnetic and fully polarized phases is presented as a function of interladder and intraladder coupling and magnetic field. Measurement of the dependence of magnetization on applied magnetic field is shown to enable location of a material on the phase diagram and determination of the Hamiltonian parameters. These results provide a practical route toward identifying and characterizing magnetic materials composed of coupled spin ladders. |
| title | From One to Two Dimensions: Magnetic Phases in Weakly Coupled Spin Ladders |
| topic | Strongly Correlated Electrons Other Condensed Matter |
| url | https://arxiv.org/abs/2511.10503 |