Anomalous Magnetoresistance in the Spin Density Wave State of Tetramethyltetraselenafulvalinium Nitrate, (TMTSF)2NO3: Imperfect-Nesting Effects (CROSBI ID 172865)
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Basletić, Mario ; Biškup, Nevenko ; Korin-Hamzić, Bojana ; Tomić, Silvia ; Hamzić, Amir ; Bechgaard, K. ; Fabre, J.M.
engleski
Anomalous Magnetoresistance in the Spin Density Wave State of Tetramethyltetraselenafulvalinium Nitrate, (TMTSF)2NO3: Imperfect-Nesting Effects
We report a study of the transverse-magnetoresistance anisotropy in the spin-density wave phase of the organic conductor (TMTSF)2NO3 at temperatures down to 1.8 K and in fields up to 6 tesla. The transverse magnetoresistance is highly anisotropic and obeys a temperature- and angular-dependent power law behaviour: DELTArho/rho congruent-to H(n) (1 less- than-or-equal-to n < 2). The indication of a possible field-induced SDW phase is discussed. We suggest that the SDW with large imperfect nesting together with a periodic anion potential might be responsible for the observed magnetic-field effects.
collective modes ; low-dimensional conductors (inc synthetic metals) ; spin density waves
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