Evolution of magnetic interactions in a pressure-induced Jahn-Teller driven magnetic dimensionality switch
We present the results of high-field magnetization and muon-spin relaxation measurements on the coordination polymer CuF2(H2O) 2(pyrazine) in pressures up to 22.5 kbar. We observe a transition from a quasi-two-dimensional to a quasi-one-dimensional antiferromagnetic phase at 9.1 kbar, driven by a ro...
| Main Authors: | , , , , , , , , , , , |
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| 格式: | Journal article |
| 語言: | English |
| 出版: |
2013
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| _version_ | 1826301713049452544 |
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| author | Ghannadzadeh, S Moeller, J Goddard, P Lancaster, T Xiao, F Blundell, S Maisuradze, A Khasanov, R Manson, J Tozer, S Graf, D Schlueter, J |
| author_facet | Ghannadzadeh, S Moeller, J Goddard, P Lancaster, T Xiao, F Blundell, S Maisuradze, A Khasanov, R Manson, J Tozer, S Graf, D Schlueter, J |
| author_sort | Ghannadzadeh, S |
| collection | OXFORD |
| description | We present the results of high-field magnetization and muon-spin relaxation measurements on the coordination polymer CuF2(H2O) 2(pyrazine) in pressures up to 22.5 kbar. We observe a transition from a quasi-two-dimensional to a quasi-one-dimensional antiferromagnetic phase at 9.1 kbar, driven by a rotation of the Jahn-Teller axis. Long-range antiferromagnetic ordering is seen in both regimes, as well as a phase separation in the critical pressure region. The magnetic dimensionality switching as pressure is increased is accompanied by a halving of the primary magnetic exchange energy J and a fivefold decrease in the ordering temperature TN. J decreases gradually with pressure in the two-dimensional phase, and then increases in the one-dimensional regime. We relate both effects to the changes in the crystal structure with applied pressure. © 2013 American Physical Society. |
| first_indexed | 2024-03-07T05:36:31Z |
| format | Journal article |
| id | oxford-uuid:e413b2fd-e1f6-4f3c-b8ae-34fefdc7e01d |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:36:31Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | oxford-uuid:e413b2fd-e1f6-4f3c-b8ae-34fefdc7e01d2022-03-27T10:13:59ZEvolution of magnetic interactions in a pressure-induced Jahn-Teller driven magnetic dimensionality switchJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:e413b2fd-e1f6-4f3c-b8ae-34fefdc7e01dEnglishSymplectic Elements at Oxford2013Ghannadzadeh, SMoeller, JGoddard, PLancaster, TXiao, FBlundell, SMaisuradze, AKhasanov, RManson, JTozer, SGraf, DSchlueter, JWe present the results of high-field magnetization and muon-spin relaxation measurements on the coordination polymer CuF2(H2O) 2(pyrazine) in pressures up to 22.5 kbar. We observe a transition from a quasi-two-dimensional to a quasi-one-dimensional antiferromagnetic phase at 9.1 kbar, driven by a rotation of the Jahn-Teller axis. Long-range antiferromagnetic ordering is seen in both regimes, as well as a phase separation in the critical pressure region. The magnetic dimensionality switching as pressure is increased is accompanied by a halving of the primary magnetic exchange energy J and a fivefold decrease in the ordering temperature TN. J decreases gradually with pressure in the two-dimensional phase, and then increases in the one-dimensional regime. We relate both effects to the changes in the crystal structure with applied pressure. © 2013 American Physical Society. |
| spellingShingle | Ghannadzadeh, S Moeller, J Goddard, P Lancaster, T Xiao, F Blundell, S Maisuradze, A Khasanov, R Manson, J Tozer, S Graf, D Schlueter, J Evolution of magnetic interactions in a pressure-induced Jahn-Teller driven magnetic dimensionality switch |
| title | Evolution of magnetic interactions in a pressure-induced Jahn-Teller driven magnetic dimensionality switch |
| title_full | Evolution of magnetic interactions in a pressure-induced Jahn-Teller driven magnetic dimensionality switch |
| title_fullStr | Evolution of magnetic interactions in a pressure-induced Jahn-Teller driven magnetic dimensionality switch |
| title_full_unstemmed | Evolution of magnetic interactions in a pressure-induced Jahn-Teller driven magnetic dimensionality switch |
| title_short | Evolution of magnetic interactions in a pressure-induced Jahn-Teller driven magnetic dimensionality switch |
| title_sort | evolution of magnetic interactions in a pressure induced jahn teller driven magnetic dimensionality switch |
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