Directional field-induced metallization of quasi-one-dimensional Li 0.9Mo6O17

Xiaofeng Xu, A. F. Bangura, J. G. Analytis, J. D. Fletcher, M. M.J. French, N. Shannon, J. He, S. Zhang, D. Mandrus, R. Jin, N. E. Hussey

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Abstract

We report a detailed magnetotransport study of the highly anisotropic quasi-one-dimensional oxide Li0.9Mo6O17 whose in-chain electrical resistivity diverges below a temperature T min∼25K. For T<Tmin, a magnetic field applied parallel to the conducting chain induces a large negative magnetoresistance and, ultimately, the recovery of a metallic state. We show evidence that this insulator-metal crossover is a consequence of field-induced suppression of a density-wave gap in a highly one-dimensional conductor. At the highest fields studied, there is evidence for the possible emergence of a novel superconducting state with an onset temperature Tc>10K.

Original languageEnglish (US)
Article number206602
JournalPhysical review letters
Volume102
Issue number20
DOIs
StatePublished - May 18 2009
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Xu, X., Bangura, A. F., Analytis, J. G., Fletcher, J. D., French, M. M. J., Shannon, N., He, J., Zhang, S., Mandrus, D., Jin, R., & Hussey, N. E. (2009). Directional field-induced metallization of quasi-one-dimensional Li 0.9Mo6O17. Physical review letters, 102(20), [206602]. https://doi.org/10.1103/PhysRevLett.102.206602