charge order breaks magnetic symmetry in molecular quantum spin chains
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ID: 157326
2012
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Abstract
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.
| Reference Key |
dressel2012advancescharge
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|---|---|
| Authors | ;M. Dressel;M. Dumm;T. Knoblauch;B. Köhler;B. Salameh;S. Yasin |
| Journal | majallah-i ̒ulum-i bāghbānī |
| Year | 2012 |
| DOI |
10.1155/2012/398721
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| URL | |
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