Anomalous Superconducting Properties and Field Induced Magnetism in CeCoIn5

Abstract

In the heavy fermion superconductor CeCoIn5 (Tc=2.3K) the critical field is large, anisotropic and displays hysteresis. The magnitude of the critical-field anisotropy in the a-c plane can be as large as 70 kOe and depends on orientation. Critical field measurements in the (110) plane suggest 2D superconductivity, whereas conventional effective mass anisotropy is observed in the (100) plane. Two distinct field-induced magnetic phases are observed: Ha appears deep in the superconducting phase, while Hb intersects Hc2 at T=1.4 K and extends well above Tc. These observations suggest the possible realization of a direct transition from ferromagnetism to Fulde-Ferrel-Larkin-Ovchinnikov superconductivity in CeCoIn5.

4 pages, 3 figures

References in corpus (2)

• Angular Position of Nodes in the Superconducting Gap of Quasi-2D Heavy-Fermion Superconductor CeCoIn_5
• The Fermi surface of CeCoIn5: dHvA

Cited by in corpus (29)

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• First order superconducting phase transition in CeCoIn${}_5$
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• Anisotropy of Thermal Conductivity and Possible Signature of the Fulde-Ferrell-Larkin-Ovchinnikov state in CeCoIn_5
• Phase Diagram and Spectroscopy of FFLO states of two-dimensional d-wave superconductors
• Observation of Spin Susceptibility Enhancement in the Possible FFLO State in CeCoIn${}_5$
• Magnetism and unconventional superconductivity in Ce${}_n$M${}_m$In${}_{3n+2m}$ heavy-fermion crystals
• Effects of La substitution on superconducting state of CeCoIn5
• Field-induced quantum critical point in CeCoIn_5
• Magnetic field induced lattice anomaly inside the superconducting state of CeCoIn${}_5$: evidence of the proposed Fulde-Ferrell-Larkin-Ovchinnikov state
• High pressure phase diagrams of CeRhIn${}_5$ and CeCoIn${}_5$ studied by ac calorimetry
• Field Dependent Coherence Length in the Superclean, High-Kappa Superconductor CeCoIn5
• Field-Induced Spin-Exciton Condensation in dx2-y2-wave Superconducting CeCoIn5
• High-field phase-diagram of Fe arsenide superconductors
• c-axis magnetotransport in CeCoIn${}_5$
• Hysteretic superconducting resistive transition in Ba0.07K0.93Fe2As2
• Anomalous thermopower and Nernst effect in $\mathrm{CeCoI}{\mathrm{n}}_5$: entropy-current loss in precursor state
• Angular Dependent Torque Measurements on CeCoIn${}_5$ Single Crystals
• Field-angle-resolved anisotropy in superconducting CeCoIn5 using realistic Fermi surfaces
• Critical magnetic fluctuations induced superconductivity and residual density of states in $CeRhI{n}_5$ superconductor
• Modulation vector of the Fulde-Ferrell-Larkin-Ovchinnikov state in CeCoIn5 revealed by high-resolution magnetostriction measurements
• Anisotropic low field behavior and the observation of flux jumps in CeCoIn5
• Theoretical Description of Nearly Discontinuous Transition in Superconductors with Paramagnetic Depairing
• Connection between in-plane upper critical field $H_{c2}$ and gap symmetry in layered $d$-wave superconductors revisited
• Search for the field-induced magnetic instability around the upper critical field of superconductivity in H || c in CeCoIn5
• Strong pinning of vortices by antiferromagnetic domain boundaries in CeCo(In${}_{1-x}$Cd${}_x$)${}_5$
• Magnetic field tuned superconducting and normal phase magnetism in CeCo${}_{0.5}$Rh${}_{0.5}$In${}_5$
• Unconventional superconductivity in CeCoIn5 with magnetic texture and orbital quantization