Magnetic phase transitions in the two-dimensional frustrated quantum antiferromagnet Cs2CuCl4
We report magnetization and specific heat measurements in the 2D frustrated spin-1/2 Heisenberg antiferromagnet Cs2CuCl4 at temperatures down to 0.05 K and high magnetic fields up to 11.5 T applied along a, b and c-axes. The low-field susceptibility chi (T) M/B shows a broad maximum around 2.8 K cha...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2006
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| _version_ | 1826297702351110144 |
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| author | Tokiwa, Y Radu, T Coldea, R Wilhelm, H Tylczynski, Z Steglich, F |
| author_facet | Tokiwa, Y Radu, T Coldea, R Wilhelm, H Tylczynski, Z Steglich, F |
| author_sort | Tokiwa, Y |
| collection | OXFORD |
| description | We report magnetization and specific heat measurements in the 2D frustrated spin-1/2 Heisenberg antiferromagnet Cs2CuCl4 at temperatures down to 0.05 K and high magnetic fields up to 11.5 T applied along a, b and c-axes. The low-field susceptibility chi (T) M/B shows a broad maximum around 2.8 K characteristic of short-range antiferromagnetic correlations and the overall temperature dependence is well described by high temperature series expansion calculations for the partially frustrated triangular lattice with J=4.46 K and J'/J=1/3. At much lower temperatures (< 0.4 K) and in in-plane field (along b and c-axes) several new intermediate-field ordered phases are observed in-between the low-field incommensurate spiral and the high-field saturated ferromagnetic state. The ground state energy extracted from the magnetization curve shows strong zero-point quantum fluctuations in the ground state at low and intermediate fields. |
| first_indexed | 2024-03-07T04:35:42Z |
| format | Journal article |
| id | oxford-uuid:cfd86bf9-2db0-49f8-b811-1ed8325f8fb2 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T04:35:42Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:cfd86bf9-2db0-49f8-b811-1ed8325f8fb22022-03-27T07:45:39ZMagnetic phase transitions in the two-dimensional frustrated quantum antiferromagnet Cs2CuCl4Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:cfd86bf9-2db0-49f8-b811-1ed8325f8fb2EnglishSymplectic Elements at Oxford2006Tokiwa, YRadu, TColdea, RWilhelm, HTylczynski, ZSteglich, FWe report magnetization and specific heat measurements in the 2D frustrated spin-1/2 Heisenberg antiferromagnet Cs2CuCl4 at temperatures down to 0.05 K and high magnetic fields up to 11.5 T applied along a, b and c-axes. The low-field susceptibility chi (T) M/B shows a broad maximum around 2.8 K characteristic of short-range antiferromagnetic correlations and the overall temperature dependence is well described by high temperature series expansion calculations for the partially frustrated triangular lattice with J=4.46 K and J'/J=1/3. At much lower temperatures (< 0.4 K) and in in-plane field (along b and c-axes) several new intermediate-field ordered phases are observed in-between the low-field incommensurate spiral and the high-field saturated ferromagnetic state. The ground state energy extracted from the magnetization curve shows strong zero-point quantum fluctuations in the ground state at low and intermediate fields. |
| spellingShingle | Tokiwa, Y Radu, T Coldea, R Wilhelm, H Tylczynski, Z Steglich, F Magnetic phase transitions in the two-dimensional frustrated quantum antiferromagnet Cs2CuCl4 |
| title | Magnetic phase transitions in the two-dimensional frustrated quantum
antiferromagnet Cs2CuCl4 |
| title_full | Magnetic phase transitions in the two-dimensional frustrated quantum
antiferromagnet Cs2CuCl4 |
| title_fullStr | Magnetic phase transitions in the two-dimensional frustrated quantum
antiferromagnet Cs2CuCl4 |
| title_full_unstemmed | Magnetic phase transitions in the two-dimensional frustrated quantum
antiferromagnet Cs2CuCl4 |
| title_short | Magnetic phase transitions in the two-dimensional frustrated quantum
antiferromagnet Cs2CuCl4 |
| title_sort | magnetic phase transitions in the two dimensional frustrated quantum antiferromagnet cs2cucl4 |
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