J. Phys. IV France 114 (2004) 257
A new superfluid in organic molecular metals at high magnetic fieldsJ. Singleton1, N. Harrison1, A. Bangura2, A. Ardavan2 and L.K. Montgomery3
1 National High Magnetic Field Laboratory, TA-35, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
2 Physics Department, University of Oxford, The Clarendon Laboratory, Oxford OX1 3PU, UK
3 Department of Chemistry, Indiana State University, Bloomington, Indiana, USA
We show that the coexistence of a quasi-two-dimensional Fermi-surface exhibiting Landau quantisation and a charge-density wave leads to a screening of electromagnetic fields at the sample surface. Hall potential experiments demonstrate that this screening is responsible for some of the unusual phenomena observed in the high-field CDW x state of -(BEDT-TTF) 2KHg(SCN) 4.
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