The High Magnetic Field Phase Diagram of a Quasi-One Dimensional Metal

Details The High Magnetic Field Phase Diagram of a Quasi-One Dimensional Metal The High Magnetic Field Phase Diagram of a Quasi-One Dimensional Metal

2000-05-26

arxiv.org/abs/cond-mat/0005478v1

Physics

Condensed Matter

Strongly Correlated Electrons

10 pages, 4 figures, preprint

Scientific paper

10.1103/PhysRevB.62.12680

We present a unique high magnetic field phase of the quasi-one dimensional organic conductor (TMTSF)$_2$ClO$_4$. This phase, termed "Q-ClO$_4$", is obtained by rapid thermal quenching to avoid ordering of the ClO$_4$ anion. The magnetic field dependent phase of Q-ClO$_4$ is distinctly different from that in the extensively studied annealed material. Q-ClO$_4$ exhibits a spin density wave (SDW) transition at $\approx$ 5 K which is strongly magnetic field dependent. This dependence is well described by the theoretical treatment of Bjelis and Maki. We show that Q-ClO$_4$ provides a new B-T phase diagram in the hierarchy of low-dimensional organic metals (one-dimensional towards two-dimensional), and describe the temperature dependence of the of the quantum oscillations observed in the SDW phase.

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