Quantized Hall effect and a new field-induced phase transition in the organic superconductor (TMTSF)2PF6
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.
- Publication:
-
Physical Review Letters
- Pub Date:
- October 1989
- DOI:
- Bibcode:
- 1989PhRvL..63.1984C
- Keywords:
-
- Hall Effect;
- Organic Compounds;
- Phase Transformations;
- Quantum Mechanics;
- Superconductivity;
- Magnetic Fields;
- Methyl Compounds;
- Microcracks;
- Phase Diagrams;
- Selenium Compounds;
- Single Crystals;
- Temperature Dependence;
- Transition Temperature;
- Solid-State Physics;
- 72.15.Gd;
- 73.20.Dx;
- 74.70.Kn;
- Galvanomagnetic and other magnetotransport effects;
- Organic superconductors