Antiferromagnetic order in Pauli-limited unconventional superconductors.

  title={Antiferromagnetic order in Pauli-limited unconventional superconductors.},
  author={Yasuyuki Kato and Cristian D. Batista and Ilya Vekhter},
  journal={Physical review letters},
  volume={107 9},
We develop a theory of the coexistence of superconductivity (SC) and antiferromagnetism (AFM) in CeCoIn(5). We show that in Pauli-limited nodal superconductors the nesting of the quasiparticle pockets induced by Zeeman pair breaking leads to incommensurate AFM with the magnetic moment normal to the field. We compute the phase diagram and find a first order transition to the normal state at low temperatures, the absence of normal state AFM, and the coexistence of SC and AFM at high fields, in… 
Numerical Simulation of Antiferromagnetic Order in Unconventional Pauli-Limited
In this Bachelor’s Thesis we investigate the novel phase of antiferromagnetism and superconductivity coexistence formed in the heavy fermion and strongly Pauli limited compound CeCoIn5 at high fields
Antiferromagnetism and superconductivity in cerium based heavy-fermion compounds
The study of competing ground states is a central issue in condensed matter physics. In this article we will discuss the interplay of antiferromagnetic order and unconventional superconductivity in
Details of coexistence of superconducting and antiferromagnetic orders induced by a paramagnetic pair-breaking effect
We theoretically investigate the k-space distributions of coexisting dx2-y2-wave superconducting (SC) and antiferromagnetic or spin-density-wave (SDW) orders induced by the paramagnetic pair-breaking
Antiferromagnetic order in CeCoIn5 oriented by spin-orbital coupling
An incommensurate spin density wave ($Q$ phase) confined inside the superconducting state at high basal plane magnetic field is an unique property of the heavy fermion metal CeCoIn$_5$. The neutron
Strong-Coupling Approach to Antiferromagnetic Ordering Driven by Paramagnetic Pair-Breaking in d-Wave Superconducting Phase
The field-induced antiferromagnetic (AFM) ordering in the \(d_{x^{2} - y^{2}}\)-paired superconducting phase, which has recently been found, by the weak-coupling approach, to be a basic mechanism due
Exotic magnetic states in Pauli-limited superconductors
Magnetism and superconductivity compete or interact in complex and intricate ways. Here we review the special case where novel magnetic phenomena appear due to superconductivity, but do not exist
Exotic magnetic states in Pauli-limited superconductors.
  • M. Kenzelmann
  • Medicine, Physics
    Reports on progress in physics. Physical Society
  • 2017
The recent progress in the study of such exotic magnetic phases in unconventional superconductors is described, and the many open questions in this field are articulated.
Charge density waves and superconductivity in U6Fe
U6Fe has the highest superconducting transition temperature TSC ∼ 4 K out of all of the U-based compounds. Unusually, the Pauli limit (1.84TSC = 7.36 T) is less than the observed critical field for
Magnetic Order in Ce 0.95 Nd 0.05 CoIn 5 : The Q-Phase at Zero Magnetic Field
We report neutron scattering experiment results revealing the nature of the magnetic order occurring in the heavy fermion superconductor Ce0.95Nd0.05CoIn5. In this system, an antiferromagnetic state
Field-induced collective spin-exciton condensation in a quasi-2D dx2–y2-wave heavy electron superconductor
The origin of the spin resonance observed in CeCoIn5 with Inelastic Neutron Scattering is subject to debate. It has been shown recently that in this heavy electron compound at low temperature an