Quantized Hall effect and a new field-induced phase transition in the organic superconductor (TMTSF)2PF6
J. R. Cooper, W. Kang, P. Auban, G. Montambaux, D. Jérome, K. Bechgaard
DOI 10.1103/PhysRevLett.63.1984 · Physical Review Letters
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Abstract
We report a Hall effect and magnetoresistance study of sin- gle crystals of the organic superconductor tetramethyl-tetraselenafulvalinium hexafluorophosphate, (TMTSF)2PF6, under hydrostatic pressure at temperatures down to 0.5 K in magnetic fields up to 25 T. There is clear evidence for a quantized Hall effect, with plateaus labeled by the integers n=5 to 1, up to 17 T. A new field-induced phase transition to a very resistive state occurs at 18 T. We believe that this is the ‘‘n=0’’ spin-density-wave state predicted by the quantized nesting theory.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| (TMTSF)2PF6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | 0.8 GPa | unknown |
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