Abstract
We have calculated the voltage, V, characteristics of the differential tunnel conductance G(V) for two general set-ups of junctions involving normal and superconducting charge-density-wave metals (CDWMs) in the external magnetic field H. The first one is non-symmetrical having a CDWM electrode biased with respect to a ferromagnetic (FM) one. Calculations show that paramagnetic splitting occurs between spin-up and spin-down components of G(V), similar to what happens when a superconducting (S) electrode is used instead of the CDWM one. The second set-up is symmetric (CDWM–CDWM), which is achievable, for example, by the break-junction technique. At H ≠0, G(V) will also be spin-split, in contrast to what is appropriate to the S–S case. In both cases, the forms of G(V) depends on the phases of the CDWM order parameter.
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