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Title: Visualizing heavy fermion confinement and Pauli-limited superconductivity in layered CeCoIn5

Journal Article · · Nature Communications
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  1. Princeton Univ., NJ (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Binghamton Univ., NY (United States)

Layered material structures play a key role in enhancing electron–electron interactions to create correlated metallic phases that can transform into unconventional superconducting states. The quasi-two-dimensional electronic properties of such compounds are often inferred indirectly through examination of bulk properties. Here we use scanning tunneling microscopy to directly probe in cross-section the quasi-two-dimensional electronic states of the heavy fermion superconductor CeCoIn5. Our measurements reveal the strong confined nature of quasiparticles, anisotropy of tunneling characteristics, and layer-by-layer modulated behavior of the precursor pseudogap gap phase. In the interlayer coupled superconducting state, the orientation of line defects relative to the d-wave order parameter determines whether in-gap states form due to scattering. Spectroscopic imaging of the anisotropic magnetic vortex cores directly characterizes the short interlayer superconducting coherence length and shows an electronic phase separation near the upper critical in-plane magnetic field, consistent with a Pauli-limited first-order phase transition into a pseudogap phase.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
Grant/Contract Number:
AC52-06NA25396; FG02-07ER46419
OSTI ID:
1422922
Report Number(s):
LA-UR-17-26033
Journal Information:
Nature Communications, Vol. 9, Issue 1; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

References (73)

The Challenge of Unconventional Superconductivity journal April 2011
Superconductivity without phonons journal December 2007
A common thread: The pairing interaction for unconventional superconductors journal October 2012
p -wave and d -wave superconductivity in quasi-two-dimensional metals journal June 1999
Heavy-fermion superconductivity in CeCoIn 5 at 2.3 K journal April 2001
Avoided Antiferromagnetic Order and Quantum Critical Point in C e C o I n 5 journal December 2003
Field-Induced Quantum Critical Point in C e C o I n 5 journal December 2003
Superconducting phases of f -electron compounds journal November 2009
Progress in Heavy-Fermion Superconductivity: Ce115 and Related Materials journal January 2012
Magnetically mediated superconductivity in heavy fermion compounds journal July 1998
Electronic structure of CeRhIn 5 : de Haas–van Alphen and energy band calculations journal July 2001
Fermi surface of the heavy-fermion superconductor CeCoIn 5 : The de Haas–van Alphen effect in the normal state journal November 2001
Quasi-two-dimensional Fermi surfaces and the de Haas-van Alphen oscillation in both the normal and superconducting mixed states of CeCoIn 5 journal June 2001
Fermi surface changes due to localized–delocalized f-state transitions in Ce-115 and Pu-115 compounds journal March 2007
c -axis magnetotransport in Ce Co In 5 journal November 2005
Strong Pressure Dependence of the Magnetic Penetration Depth in Single Crystals of the Heavy-Fermion Superconductor CeCoIn 5 Studied by Muon Spin Rotation journal January 2013
Out-of-plane temperature-dependent resistivity studies on Tl-based superconductors journal April 2007
Unconventional Superconductivity in CeIrI n 5 and CeCoIn 5 : Specific Heat and Thermal Conductivity Studies journal May 2001
Structural Tuning of Unconventional Superconductivity in P u M G a 5 ( M = C o , R h ) journal September 2004
Coexistence of magnetism and superconductivity in CeRh 1 x Ir x In 5 journal August 2001
Tuning the Dimensionality of the Heavy Fermion Compound CeIn3 journal February 2010
Extremely strong-coupling superconductivity in artificial two-dimensional Kondo lattices journal October 2011
Angular Position of Nodes in the Superconducting Gap of Quasi-2D Heavy-Fermion Superconductor CeCoIn 5 journal July 2001
Andreev Reflection in Heavy-Fermion Superconductors and Order Parameter Symmetry in CeCoIn 5 journal April 2008
Pairing symmetry of CeCoIn 5 detected by in-plane torque measurements journal July 2008
Spin Resonance in the d -Wave Superconductor CeCoIn 5 journal February 2008
Point-contact study of the heavy-fermion superconductor CeCoIn5 journal December 2008
Sign Reversal of Field-Angle Resolved Heat Capacity Oscillations in a Heavy Fermion Superconductor CeCoIn 5 and d x 2 y 2 Pairing Symmetry journal January 2010
Visualizing nodal heavy fermion superconductivity in CeCoIn5 journal July 2013
Imaging Cooper pairing of heavy fermions in CeCoIn5 journal July 2013
Superconductivity and Quantum Criticality in C e C o I n 5 journal September 2002
Scanning tunneling microscopy studies on CeCoIn 5 and CeIrIn 5 journal March 2010
Anomalous thermopower and Nernst effect in CeColn 5 : Loss of entropy current in precursor state journal June 2007
Interacting Antiferromagnetic Droplets in Quantum Critical CeCoIn 5 journal October 2007
Possible Fulde-Ferrell-Larkin-Ovchinnikov Superconducting State in C e C o I n 5 journal October 2003
Coupled Superconducting and Magnetic Order in CeCoIn5 journal September 2008
Magnetic-Field-Induced Pattern of Coexisting Condensates in the Superconducting State of CeCoIn 5 journal May 2010
First-Order Superconducting Phase Transition in C e C o I n 5 journal September 2002
Unconventional heavy-fermion superconductor CeCoIn 5 : dc magnetization study at temperatures down to 50 mK journal April 2002
Visualizing heavy fermions emerging in a quantum critical Kondo lattice journal June 2012
Quasi-particle interference of heavy fermions in resonant x-ray scattering journal October 2016
Modeling the Localized-to-Itinerant Electronic Transition in the Heavy Fermion System CeIrIn5 journal December 2007
Dynamical mean-field theory within the full-potential methods: Electronic structure of CeIrIn 5 , CeCoIn 5 , and CeRhIn 5 journal May 2010
Imaging standing waves in a two-dimensional electron gas journal June 1993
Textured Superconducting Phase in the Heavy Fermion CeRhIn 5 journal February 2012
A new heavy-fermion superconductor CeIrIn 5 : A relative of the cuprates? journal February 2001
Origin of the zero-resistance anomaly in heavy fermion superconducting CeIrIn 5 : A clue from magnetic-field and Rh-doping studies journal November 2001
Differential conductance and defect states in the heavy-fermion superconductor CeCoIn 5 journal January 2016
A Four Unit Cell Periodic Pattern of Quasi-Particle States Surrounding Vortex Cores in Bi2Sr2CaCu2O8+delta journal January 2002
STM Studies of the Electronic Structure of Vortex Cores in Bi 2 Sr 2 CaCu 2 O 8 + δ journal August 2000
Hexagonal and Square Flux Line Lattices in C e C o I n 5 journal May 2003
Superconducting Vortices in CeCoIn5: Toward the Pauli-Limiting Field journal January 2008
Vortex Lattice Studies in CeCoIn 5 with H c journal February 2012
Direct Vortex Lattice Imaging and Tunneling Spectroscopy of Flux Lines on YBa 2 Cu 3 O 7 δ journal October 1995
Hidden order transition in URu 2 Si 2 : Evidence for the emergence of a coherent Anderson lattice from scanning tunneling spectroscopy journal July 2012
Differential Conductance and Quantum Interference in Kondo Systems journal May 2010
Strong pressure dependence of the magnetic penetration depth in single crystals of the heavy-fermion superconductor CeCoIn_{5} studied by Muon Spin Rotation text January 2013
Unconventional Superconductivity in CeIrIn5 and CeCoIn5: Specific Heat and Thermal Conductivity Studies text January 2001
Angular Position of Nodes in the Superconducting Gap of Quasi-2D Heavy-Fermion Superconductor CeCoIn5 text January 2001
Andreev Reflection in Heavy-Fermion Superconductors and Order Parameter Symmetry in CeCoIn_5 text January 2007
Pairing Symmetry of CeCoIn$_5$ Detected by In-plane Torque Measurements text January 2007
Superconducting phases of f-electron compounds text January 2009
Differential Conductance and Quantum Interference in Kondo Systems text January 2010
The Challenge of Unconventional Superconductivity text January 2011
Extremely strong coupling superconductivity in artificial two-dimensional Kondo lattices text January 2011
Differential Conductance and Defect States in the Heavy Fermion Superconductor CeCoIn$_5$ text January 2015
Quasiparticle interference of heavy fermions in resonant X-ray scattering text January 2016
STM Studies of the Electronic Structure of Vortex Cores in Bi2Sr2CaCu2O8+d text January 2000
Heavy-fermion superconductivity in CeCoIn5 at 2.3K text January 2001
A Four-Unit-Cell Periodic Pattern of Quasiparticle States Surrounding Vortex Cores in Bi2Sr2CaCu2O8+d text January 2002
Superconductivity in Cerium- and Plutonium-Based `115' Materials journal May 2007
A Common Thread: the pairing interaction for the unconventional superconductors text January 2012
p-wave and d-wave superconductivity in quasi-two-dimensional metals text January 1999

Cited By (1)

Chiral superconductivity in heavy-fermion metal UTe2 journal March 2020