科研之友
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摘要
Antiferromagnetic (AFM) (or spin-density wave) quantum critical fluctuation enhanced just below H(c2)(0) have been often observed in d-wave superconductors with a strong Pauli paramagnetic depairing (PD) including CeCoIn(5). It is shown here that such a tendency of field-induced AFM ordering is a consequence of strong PD and should appear particularly in superconductors with a gap node along the AFM modulation. Two phenomena seen in CeCoIn(5), the AFM order in the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state and the anomalous vortex lattice form factor in the high-field range below the FFLO state, are explained based on this peculiar PD effect.
- 出版日期2010-8-12
