Magnetization plateaus and supersolid phases in an extended Shastry–Sutherland model
New magnetization plateaus and supersolid phases are identified in an extended Shastry–Sutherland model – with additional longer range interactions and exchange anisotropy – over a wide range of interaction parameters and an applied magnetic field. The model is appropriate for describing the low ene...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2020
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/137393 |
| _version_ | 1826126416480043008 |
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| author | Wierschem, Keola Zhang, Zhifeng Wibawa, Andrew Sengupta, Pinaki |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Wierschem, Keola Zhang, Zhifeng Wibawa, Andrew Sengupta, Pinaki |
| author_sort | Wierschem, Keola |
| collection | NTU |
| description | New magnetization plateaus and supersolid phases are identified in an extended Shastry–Sutherland model – with additional longer range interactions and exchange anisotropy – over a wide range of interaction parameters and an applied magnetic field. The model is appropriate for describing the low energy properties of some members of the rare earth tetraborides. Using a plaquette representation and exact mapping of ground state configurations in the Ising limit, supplemented by large scale quantum Monte Carlo simulations to include the effects of exchange interactions, we have identified several magnetization plateaus and associated spin supersolid phases. Our methods enable us to elucidate the underlying structure and mechanism of formation of the supersolid phases, thus gaining deeper understanding into their emergence from competing interactions. Additionally, in this regime we find evidence of a fractional plateau at 1∕9 saturation magnetization, which may hold the clue to understanding the fractional plateau in TmB4 that exhibits magnetic hysteresis. |
| first_indexed | 2024-10-01T06:52:18Z |
| format | Journal Article |
| id | ntu-10356/137393 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:52:18Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | ntu-10356/1373932023-02-28T19:21:47Z Magnetization plateaus and supersolid phases in an extended Shastry–Sutherland model Wierschem, Keola Zhang, Zhifeng Wibawa, Andrew Sengupta, Pinaki School of Physical and Mathematical Sciences Science::Physics Magnetization Plateaus Shastry-Sutherland New magnetization plateaus and supersolid phases are identified in an extended Shastry–Sutherland model – with additional longer range interactions and exchange anisotropy – over a wide range of interaction parameters and an applied magnetic field. The model is appropriate for describing the low energy properties of some members of the rare earth tetraborides. Using a plaquette representation and exact mapping of ground state configurations in the Ising limit, supplemented by large scale quantum Monte Carlo simulations to include the effects of exchange interactions, we have identified several magnetization plateaus and associated spin supersolid phases. Our methods enable us to elucidate the underlying structure and mechanism of formation of the supersolid phases, thus gaining deeper understanding into their emergence from competing interactions. Additionally, in this regime we find evidence of a fractional plateau at 1∕9 saturation magnetization, which may hold the clue to understanding the fractional plateau in TmB4 that exhibits magnetic hysteresis. MOE (Min. of Education, S’pore) Accepted version 2020-03-23T05:06:28Z 2020-03-23T05:06:28Z 2018 Journal Article Wierschem, K., Zhang, Z., Wibawa, A., & Sengupta, P. (2018). Magnetization plateaus and supersolid phases in an extended Shastry–Sutherland model. European Physical Journal B, 91(9), 201-. doi:10.1140/epjb/e2018-90356-5 1434-6028 https://hdl.handle.net/10356/137393 10.1140/epjb/e2018-90356-5 2-s2.0-85053175918 9 91 en European Physical Journal B © 2018 EDP Sciences, Societ`a Italiana di Fisica, Springer-Verlag. All rights reserved. This paper was published by Springer in European Physical Journal B and is made available with permission of EDP Sciences, Societ`a Italiana di Fisica, Springer-Verlag. application/pdf |
| spellingShingle | Science::Physics Magnetization Plateaus Shastry-Sutherland Wierschem, Keola Zhang, Zhifeng Wibawa, Andrew Sengupta, Pinaki Magnetization plateaus and supersolid phases in an extended Shastry–Sutherland model |
| title | Magnetization plateaus and supersolid phases in an extended Shastry–Sutherland model |
| title_full | Magnetization plateaus and supersolid phases in an extended Shastry–Sutherland model |
| title_fullStr | Magnetization plateaus and supersolid phases in an extended Shastry–Sutherland model |
| title_full_unstemmed | Magnetization plateaus and supersolid phases in an extended Shastry–Sutherland model |
| title_short | Magnetization plateaus and supersolid phases in an extended Shastry–Sutherland model |
| title_sort | magnetization plateaus and supersolid phases in an extended shastry sutherland model |
| topic | Science::Physics Magnetization Plateaus Shastry-Sutherland |
| url | https://hdl.handle.net/10356/137393 |
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