Random-anisotropy mixed-spin Ising on a triangular lattice
We have studied the mixed spin-1/2 and 1 Ising ferrimagnetic system with a random anisotropy on a triangular lattice with three interpenetrating sublattices A, B, and C. The spins on the sublattices are represented by σ_A (states ±1/2), σ_B (states ±1/2), and S_C (states ±1, 0). We have performed Mo...
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| Format: | Article |
| Language: | English |
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Institute for Condensed Matter Physics
2023-05-01
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| Series: | Condensed Matter Physics |
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| Online Access: | https://doi.org/10.5488/CMP.26.23601 |
| _version_ | 1797820284218114048 |
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| author | E. S. de Santana A. S. de Arruda M. Godoy |
| author_facet | E. S. de Santana A. S. de Arruda M. Godoy |
| author_sort | E. S. de Santana |
| collection | DOAJ |
| description | We have studied the mixed spin-1/2 and 1 Ising ferrimagnetic system with a random anisotropy on a triangular lattice with three interpenetrating sublattices A, B, and C. The spins on the sublattices are represented by σ_A (states ±1/2), σ_B (states ±1/2), and S_C (states ±1, 0). We have performed Monte Carlo simulations to obtain the phase diagram temperature (k_B)T/|J| versus the strength of the random anisotropy D/|J|. The phase boundary between two ferrimagnetic FR_1 and FR_2 phases at lower temperatures are always first-order for p < 0.25 and second-order phase transition between the FR_1, FR_2 and the paramagnetic P phases. On the other hand, for values of p ⪆ 0.5, the phase diagram presents only second-order phase transition lines. |
| first_indexed | 2024-03-13T09:36:06Z |
| format | Article |
| id | doaj.art-1afc089248174c96ba9aab63f2e67396 |
| institution | Directory Open Access Journal |
| issn | 1607-324X 2224-9079 |
| language | English |
| last_indexed | 2024-03-13T09:36:06Z |
| publishDate | 2023-05-01 |
| publisher | Institute for Condensed Matter Physics |
| record_format | Article |
| series | Condensed Matter Physics |
| spelling | doaj.art-1afc089248174c96ba9aab63f2e673962023-05-25T13:19:19ZengInstitute for Condensed Matter PhysicsCondensed Matter Physics1607-324X2224-90792023-05-012622360110.5488/CMP.26.23601Random-anisotropy mixed-spin Ising on a triangular latticeE. S. de SantanaA. S. de ArrudaM. GodoyWe have studied the mixed spin-1/2 and 1 Ising ferrimagnetic system with a random anisotropy on a triangular lattice with three interpenetrating sublattices A, B, and C. The spins on the sublattices are represented by σ_A (states ±1/2), σ_B (states ±1/2), and S_C (states ±1, 0). We have performed Monte Carlo simulations to obtain the phase diagram temperature (k_B)T/|J| versus the strength of the random anisotropy D/|J|. The phase boundary between two ferrimagnetic FR_1 and FR_2 phases at lower temperatures are always first-order for p < 0.25 and second-order phase transition between the FR_1, FR_2 and the paramagnetic P phases. On the other hand, for values of p ⪆ 0.5, the phase diagram presents only second-order phase transition lines.https://doi.org/10.5488/CMP.26.23601random anisotropymixed-spin ising systemmonte carlo simulation |
| spellingShingle | E. S. de Santana A. S. de Arruda M. Godoy Random-anisotropy mixed-spin Ising on a triangular lattice Condensed Matter Physics random anisotropy mixed-spin ising system monte carlo simulation |
| title | Random-anisotropy mixed-spin Ising on a triangular lattice |
| title_full | Random-anisotropy mixed-spin Ising on a triangular lattice |
| title_fullStr | Random-anisotropy mixed-spin Ising on a triangular lattice |
| title_full_unstemmed | Random-anisotropy mixed-spin Ising on a triangular lattice |
| title_short | Random-anisotropy mixed-spin Ising on a triangular lattice |
| title_sort | random anisotropy mixed spin ising on a triangular lattice |
| topic | random anisotropy mixed-spin ising system monte carlo simulation |
| url | https://doi.org/10.5488/CMP.26.23601 |
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