Quasiparticle interference in heavy Fermion superconductor CeCoIn_5

Abstract

We investigate the quasiparticle interference in the heavy Fermion superconductor CeCoIn_5 as direct method to confirm the d-wave gap symmetry. The ambiguity between d_{xy} and d_{x^2-y^2} symmetry remaining from earlier specific heat and thermal transport investigations has been resolved in favor of the latter by the observation of a spin resonance that can occur only in d_{x^2-y^2} symmetry. However these methods are all indirect and depend considerably on theoretical interpretation. Here we propose that quasiparticle interference (QPI) spectroscopy by scanning tunneling microscopy (STM) can give a direct fingerprint of the superconducting gap in real space which may lead to a definite conclusion on its symmetry for CeCoIn_5 and related 115 compounds. The QPI pattern for both magnetic and nonmagnetic impurities is calculated for the possible d-wave symmetries and characteristic differences are found that may be identified by STM method.

7 pages, 4 figures

References in corpus (13)

• Spin resonance in the d-wave superconductor CeCoIn5
• Nodal Structure of Unconventional Superconductors Probed by the Angle Resolved Thermal Transport Measurements
• Electron Cotunneling into a Kondo Lattice
• Feedback spin resonance in superconducting CeCu${}_2$Si${}_2$ and CeCoIn${}_5$
• Evolution of Paramagnetic Quasiparticle Excitations Emerged in the High-Field Superconducting Phase of CeCoIn5
• Thermal conductivity evidence for d_{x^2-y^2} pairing symmetry in the heavy-fermion CeIrIn5 superconductor
• Model for nodal quasiparticle scattering in a disordered vortex lattice
• d-Wave Checkerboard Order in Cuprates
• Hybrid gap structure in the heavy-fermion superconductor CeIrIn${}_5$
• Extinction of quasiparticle interference in underdoped cuprates with coexisting order
• Complementary Pair Density Wave and d-wave Checkerboard Order in High Temperature Superconductors
• Orbital-Controlled Superconductivity in f-Electron Systems
• Quasiparticle mirages in the tunneling spectra of d-wave superconductors

Cited by in corpus (26)

• Landau Quantization and Quasiparticle Interference in the Three-Dimensional Dirac Semimetal Cd3As2
• Imaging Cooper Pairing of Heavy Fermions in CeCoIn5
• Visualizing Nodal Heavy Fermion Superconductivity in CeCoIn5
• Direct Evidence for a Magnetic f-electron Mediated Cooper Pairing Mechanism of Heavy Fermion Superconductivity in CeCoIn5
• Classification of topological crystalline superconducting nodes on high-symmetry lines: Point nodes, line nodes, and Bogoliubov Fermi surfaces
• $k_z$ selective scattering within Quasiparticle Interference measurements of FeSe
• Rashba spin-orbit coupling effects in quasiparticle interference of non-centrosymmetric superconductors
• Field induced spin exciton doublet splitting in d_{x^2-y^2}-wave 115-heavy electron superconductors
• Surface state tunneling signatures in two-component superconductor UPt${}_3$
• Multiorbital and hybridization effects in the quasiparticle interference of triplet superconductor Sr2RuO4
• Full t-matrix approach to quasiparticle interference in non-centrosymmetric superconductors
• On the nature of quasiparticle interference in three dimensions
• Gapped Dirac cones and spin texture in thin film topological insulator
• Superconducting gap structure of the 115's revisited
• Gap function of hexagonal pnictide superconductor SrPtAs from quasiparticle interference spectrum
• Phase-sensitive determination of nodal $\mathbf{d}$-wave order parameter in single-band and multiband superconductors
• Nonmagnetic impurity resonance states as a test of superconducting pairing symmetry in CeCoIn${}_5$
• Momentum space imaging of the FFLO state
• Quasiparticle interference of heavy fermions in resonant X-ray scattering
• Coexisting Kondo hybridization and itinerant f-electron ferromagnetism in UGe2
• Hidden order symmetry and superconductivity in URu2Si2 investigated by quasiparticle interference
• Zitterbewegung-mediated RKKY coupling in topological insulator thin films
• Investigation of magnetic phases in parent compounds of Iron-chalcogenides via quasiparticle scattering interference
• Momentum space imaging of locally noncentrosymmetric superconductors
• Image of helical local moment magnetic order in the STM spectrum
• Microscopic Insights into London Penetration Depth: Application to CeCoIn${}_5^{}$