Charge Order Breaks Magnetic Symmetry in Molecular Quantum Spin Chains
Charge order affects most of the electronic properties but is believed not to alter the spin arrangement since the magnetic susceptibility remains unchanged. We present electron-spin-resonance experiments on quasi-one-dimensional (TMTTF)2X salts (X= PF6, AsF6, and SbF6), which reveal that the magnet...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2012/398721 |
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| author | M. Dressel M. Dumm T. Knoblauch B. Köhler B. Salameh S. Yasin |
| author_facet | M. Dressel M. Dumm T. Knoblauch B. Köhler B. Salameh S. Yasin |
| author_sort | M. Dressel |
| collection | DOAJ |
| description | Charge order affects most of the electronic properties but is believed not to alter the spin arrangement since the magnetic susceptibility remains unchanged. We present electron-spin-resonance experiments on quasi-one-dimensional (TMTTF)2X salts (X= PF6, AsF6, and SbF6), which reveal that the magnetic properties are modified below TCO when electronic ferroelectricity sets in. The coupling of anions and organic molecules rotates the g-tensor out of the molecular plane creating magnetically nonequivalent sites on neighboring chains at domain walls. Due to anisotropic Zeeman interaction a novel magnetic interaction mechanism in the charge-ordered state is observed as a doubling of the rotational periodicity of ΔH. |
| format | Article |
| id | doaj-art-b5c2e31e656a46b0ac77720d710024df |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-b5c2e31e656a46b0ac77720d710024df2025-02-03T06:12:12ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242012-01-01201210.1155/2012/398721398721Charge Order Breaks Magnetic Symmetry in Molecular Quantum Spin ChainsM. Dressel0M. Dumm1T. Knoblauch2B. Köhler3B. Salameh4S. Yasin51. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany1. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany1. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany1. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany1. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Germany1. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, GermanyCharge order affects most of the electronic properties but is believed not to alter the spin arrangement since the magnetic susceptibility remains unchanged. We present electron-spin-resonance experiments on quasi-one-dimensional (TMTTF)2X salts (X= PF6, AsF6, and SbF6), which reveal that the magnetic properties are modified below TCO when electronic ferroelectricity sets in. The coupling of anions and organic molecules rotates the g-tensor out of the molecular plane creating magnetically nonequivalent sites on neighboring chains at domain walls. Due to anisotropic Zeeman interaction a novel magnetic interaction mechanism in the charge-ordered state is observed as a doubling of the rotational periodicity of ΔH.http://dx.doi.org/10.1155/2012/398721 |
| spellingShingle | M. Dressel M. Dumm T. Knoblauch B. Köhler B. Salameh S. Yasin Charge Order Breaks Magnetic Symmetry in Molecular Quantum Spin Chains Advances in Condensed Matter Physics |
| title | Charge Order Breaks Magnetic Symmetry in Molecular Quantum Spin Chains |
| title_full | Charge Order Breaks Magnetic Symmetry in Molecular Quantum Spin Chains |
| title_fullStr | Charge Order Breaks Magnetic Symmetry in Molecular Quantum Spin Chains |
| title_full_unstemmed | Charge Order Breaks Magnetic Symmetry in Molecular Quantum Spin Chains |
| title_short | Charge Order Breaks Magnetic Symmetry in Molecular Quantum Spin Chains |
| title_sort | charge order breaks magnetic symmetry in molecular quantum spin chains |
| url | http://dx.doi.org/10.1155/2012/398721 |
| work_keys_str_mv | AT mdressel chargeorderbreaksmagneticsymmetryinmolecularquantumspinchains AT mdumm chargeorderbreaksmagneticsymmetryinmolecularquantumspinchains AT tknoblauch chargeorderbreaksmagneticsymmetryinmolecularquantumspinchains AT bkohler chargeorderbreaksmagneticsymmetryinmolecularquantumspinchains AT bsalameh chargeorderbreaksmagneticsymmetryinmolecularquantumspinchains AT syasin chargeorderbreaksmagneticsymmetryinmolecularquantumspinchains |