Pauli-limited upper critical field in dirty d-wave superconductors

Details Pauli-limited upper critical field in dirty d-wave superconductors Pauli-limited upper critical field in dirty d-wave superconductors

2008-06-15

arxiv.org/abs/0806.2445v1

Phys. Rev. B v.78 p.180505(R) 2008

Physics

Condensed Matter

Superconductivity

5 pages, 3 figures

Scientific paper

10.1103/PhysRevB.78.180505

We calculate the Pauli-limited upper critical field and the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) instability for {\it dirty} d-wave superconductors within the quasiclassical theory using the self-consistent $\hat{t}$-matrix approximation for impurities. We find that the phase diagram depends sensitively on the scattering rate and phase shift of nonmagnetic impurities. The transition into the superconducting state is always second order for weak (Born) scattering, while in the unitarity (strong) scattering limit a first-order transition into both uniform and spatially modulated superconducting states is stabilized. Contrary to general belief, we find that the FFLO phase is robust against disorder and survives impurity scattering equivalent to a $T_c$ suppression of roughly 40%. Our results bear on the search of FFLO states in heavy-fermion and layered organic superconductors.

Affiliated with

Also associated with

No associations

Rating

Pauli-limited upper critical field in dirty d-wave superconductors does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Pauli-limited upper critical field in dirty d-wave superconductors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pauli-limited upper critical field in dirty d-wave superconductors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-258478