Inherent spin density wave instability by vortices in superconductors with strong Pauli effects

Abstract

A novel spin density wave (SDW) instability mechanism enhanced by vortices under fields is proposed to explain the high field and low temperature (HL) phase in CeCoIn${}_5$. In the vortex state the strong Pauli effect and the nodal gap conspire to enhance the momentum resolved spectral weight exclusively along the nodal direction over the normal value, providing a favorable nesting condition for SDW with $\mathbf{Q}=(2k_F,2k_F,0.5)$ only under high field ($H$). Observed mysteries of the field-induced SDW confined within $H_{c2}$ are understood consistently, such facts that $\mathbf{Q}$ is directed to the nodal direction independent of $H$, SDW diminishes under tilting field from the $ab$ plane, and the SDW transition line in $(H,T)$ has a positive slope.

5 pages, 3figures

References in corpus (23)

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Cited by in corpus (23)

• Switching of magnetic domains reveals evidence for spatially inhomogeneous superconductivity
• Antiferromagnetism and Superconductivity in Cerium based Heavy Fermion Compounds
• Field-Induced Spin-Exciton Condensation in dx2-y2-wave Superconducting CeCoIn5
• Antiferromagnetic Order in Pauli Limited Unconventional Superconductors
• Magnetic order in Ce0.95Nd0.05CoIn5: the Q-phase at zero magnetic field
• Multi-band effects on Fulde-Ferrell-Larkin-Ovchinnikov states of Pauli-limited superconductors
• Antiferromagnetic Order oriented by Fulde-Ferrell-Larkin-Ovchinnikov Superconducting Order
• Quasiparticle entropy in the high-field superconducting phase of CeCoIn${}_5$
• Interplay of the spin density wave and a possible Fulde-Ferrell-Larkin-Ovchinnikov state in $\mathrm{CeCoI}{\mathrm{n}}_5$ in rotating magnetic field
• Disorder-robust high-field superconducting phase of FeSe single crystals
• Impurity-induced antiferromagnetic order in Pauli-limited nodal superconductors: application to heavy fermion CeCoIn5
• Field Evolution of the Fulde-Ferrell-Larkin-Ovchinnikov State in a Superconductor with Strong Pauli Effects
• Vortex lattice studies in CeCoIn5 with H perpendicular to c
• Structure of magnetic order in Pauli limited unconventional superconductors
• Ginzburg-Landau Analysis for the Antiferromagnetic Order in the Fulde-Ferrell-Larkin-Ovchinnikov Superconductor
• Possible Triplet Superconducting Order in Magnetic Superconducting Phase induced by Paramagnetic Pair-Breaking
• Microscopic Eilenberger theory of Fulde-Ferrell-Larkin-Ovchinnikov states in the presence of vortices
• Spin susceptibility of Andreev bound states
• Impurity-induced magnetic droplet in unconventional superconductors near magnetic instability: Application to Nd doped $\mathbf{CeCoI}{\mathbf{n}}_5$
• Switching dynamics of the spin density wave in superconducting CeCoIn5
• Enhancement of Electronic Spin Susceptibility in Pauli Limited Unconventional Superconductors
• Angular dependence of antiferromagnetic order induced by paramagnetism in d-wave superconductor
• Distinct domain switching in Nd0.05Ce0.95CoIn5 at low and high fields