Electron paramagnetic resonance studies of the high-spin molecule Cr10(OMe)20(O2CCMe3)10 -: art. no. 03250
APPLIED PHYSICS LETTERS 86:3 (2005) ARTN 032507
Fermiology of new charge-transfer salts, β″-(BEDT-TTF) 4 [(H3 O)M(C2 O4 )3 ]-solvent where M = Ga, Cr and Fe
Journal De Physique. IV : JP 114 (2004) 205-209
Abstract:
We report high-field magnetotransport measurements on β″-(BEDT- TTF)4[(H3O)M(C2O4) 3]· solvent, where M=Ga3+, Cr3+ and Fe3+ and solvent=C5H5N. In spite of their differing transition metal-ions, M, the three compounds exhibit similar magnetic quantum oscillation spectra superimposed on a positive magnetoresistance. At least four independent quantum oscillation frequencies have been identified, corresponding to two different hole and electron pockets of the Fermi surface which follow the rules of a compensated metal. Observation of the small pockets could be the result of the Fermi surface reconstruction induced by a possible density wave. The effective masses are very similar for different samples and for different pockets range between meff ≈ 0.5-1.1 me whereas the Dingle temperatures varies between TD ≈ 1.4-4 K. At low temperature, the longitudinal magnetoresistance violates Kohler's rule, suggesting that the interlayer transport in these quasi-2D systems cannot be related to a single scattering time and that the disorder plays an important role. © EDP Sciences.The effect of magnetic ions and disorder on superconducting β″-(BEDT-TTF)4 [(H3 O)M(C2 O 4 )3 ]· C6 H5 NO2 salts, where M = Ga and Cr
Journal De Physique. IV : JP 114 (2004) 285-287
Abstract:
We report magnetotransport measurements performed in magnetic fields of up to 33 T and at low temperatures (0.45 KThe role of magnetic ions on the magnetotransport properties of the charge-transfer salts β″-BEDT-[()()] where =, Cr3+ or Fe3+
Journal of Magnetism and Magnetic Materials Elsevier BV 272-276 (2004) 1062-1064
The role of magnetic ions on the magnetotransport properties of the charge-transfer salts beta ''-BEDT-TTF4[(H3O)M(C2O4)(3)]C5H5N where M = Ga3+, Cr3+ or Fe3+
J MAGN MAGN MATER 272-76 (2004) 1062-1064