High Field ESR Study of the pi-d Correlated Organic Conductor lambda-(BETS)2Fe0.6Ga0.4Cl4

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dc.creatorOshima, Y.
dc.creatorJobiliong, E.
dc.creatorTokumoto, T.
dc.creatorBrooks, J. S.
dc.creatorZvyagin, S. A.
dc.creatorKrzystek, J.
dc.creatorTanaka, H.
dc.creatorKobayashi, A.
dc.creatorCui, H.
dc.creatorKobayashi, H.
dc.date2004-04-27
dc.date.accessioned2026-07-07T02:57:51Z
dc.date.available2026-07-07T02:57:51Z
dc.descriptionSubmillimeter and millimeter wave electron spin resonance (ESR) measurements of the pi-d correlated organic conductor lambda-(BETS)2Fe0.6Ga0.4Cl4 have been performed. Antiferromagnetic resonance (AFMR) has been observed in the insulating antiferromagnetic phase, and its frequency-field dependence can be reproduced by the biaxial anisotropic AFMR theory. We find that in this alloy system, the easy-axis is near the b-axis, unlike previous results for the pure lambda-(BETS)2FeCl4 salts where it is closer to the c*-axis. We have also observed electron paramagnetic resonance (EPR) in the metallic phase at higher fields where the g-value is shown to be temperature and frequency dependent for field applied along the c*-axis. This behavior indicates the existence of strong pi-d interaction. Our measurements further show the magnetic anisotropy associated with the anions (the D term in the spin Hamiltonian) is |D|~0.11 cm-1.
dc.description7 pages, 7 figures, Submitted to PRB
dc.identifierhttps://arxiv.org/abs/cond-mat/0404645
dc.identifierhttp://arxiv.org/abs/cond-mat/0404645
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/23835
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleHigh Field ESR Study of the pi-d Correlated Organic Conductor lambda-(BETS)2Fe0.6Ga0.4Cl4
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