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Title: Unconventional superconductivity in heavy-fermion compounds

Journal Article · · Physica. C, Superconductivity
 [1];  [2];  [1]
  1. Univ. of California, San Diego, La Jolla, CA (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Over the past 35 years, research on unconventional superconductivity in heavy-fermion systems has evolved from the surprising observations of unprecedented superconducting properties in compounds that convention dictated should not superconduct at all to performing explorations of rich phase spaces in which the delicate interplay between competing ground states appears to support emergent superconducting states. Here, we review the current understanding of superconductivity in heavy-fermion compounds and identify a set of characteristics that is common to their unconventional superconducting states. Furthermore, these core properties are compared with those of other classes of unconventional superconductors such as the cuprates and iron-based superconductors. Finally, we speculate on the prospects for future research in this field and how new advances might contribute towards resolving the long-standing mystery of how unconventional superconductivity works.

Research Organization:
Univ. of California, San Diego, CA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0002909; NA0001841; AC52-06NA25396
OSTI ID:
1257508
Alternate ID(s):
OSTI ID: 1250182; OSTI ID: 1329572
Report Number(s):
LA-UR-15-21155; PII: S0921453415000714
Journal Information:
Physica. C, Superconductivity, Vol. 514, Issue C; ISSN 0921-4534
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 78 works
Citation information provided by
Web of Science

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Evidence for Magnetic-Field-Induced Quadrupolar Ordering in the Heavy-Fermion Superconductor PrOs 4 Sb 12 journal May 2003
Muon Spin Relaxation and Isotropic Pairing in Superconducting P r O s 4 S b 12 journal September 2002
Very-low-temperature tunneling spectroscopy in the heavy-fermion superconductor PrOs 4 Sb 12 journal February 2004
Flux-Line Lattice Distortion in P r O s 4 S b 12 journal October 2004
Penetration depth, multiband superconductivity, and absence of muon-induced perturbation in superconducting PrOs 4 Sb 12 journal May 2009
Multiband Superconductivity in the Heavy Fermion Compound Pr  Os 4 Sb 12 journal September 2005
Superconducting PrOs 4 Sb 12 : A Thermal Conductivity Study journal December 2006
Multiband Order Parameters for the PrOs 4 Sb 12 and PrRu 4 Sb 12 Skutterudite Superconductors from Thermal Conductivity Measurements journal December 2008
Time-Reversal Symmetry-Breaking Superconductivity in Heavy-Fermion P r O s 4 S b 12 Detected by Muon-Spin Relaxation journal August 2003
Superconductivity in Novel Ge-Based Skutterudites: { Sr , Ba } Pt 4 Ge 12 journal November 2007
Superconductivity in the Platinum Germanides MPt 4 Ge 12 ( M = Rare Earth or Alkaline-Earth Metal) with Filled Skutterudite Structure journal January 2008
Superfluid Density and Energy Gap Function of Superconducting PrPt 4 Ge 12 journal September 2009
Evidence for time-reversal symmetry breaking in superconducting PrPt 4 Ge 12 journal July 2010
Evidence for two superconducting gaps in the unconventional superconductor PrPt 4 Ge 12 journal November 2012
Comparative photoemission studies on the superconducting gap of the filled skutterudite superconductors LaPt 4 Ge 12 and PrPt 4 Ge 12 journal July 2012
Multiband superconductivity in PrPt 4 Ge 12 single crystals journal February 2013
Probing the superconductivity of PrPt 4 Ge 12 through Ce substitution journal January 2014
Electrical, Magnetic and NMR Studies of Ge-Based Filled Skutterudites R Pt 4 Ge 12 ( R =La, Ce, Pr, Nd) journal December 2008
Superconductivity and Structural Phase Transitions in Caged Compounds RT 2 Zn 20 (R = La, Pr, T = Ru, Ir) journal March 2010
Antiferroquadrupolar Ordering in a Pr-Based Superconductor PrIr 2 Zn 20 journal April 2011
Well-Defined Crystal Field Splitting Schemes and Non-Kramers Doublet Ground States of f Electrons in Pr T 2 Zn 20 ( T = Ir, Rh, and Ru) journal April 2013
Fermi Surface Property and Characteristic Crystalline Electric Field Effect in PrIr 2 Zn 20 journal July 2011
Simultaneous superconducting and antiferroquadrupolar transitions in PrRh 2 Zn 20 journal November 2012
Ultrasonic Investigation on a Cage Structure Compound PrTi 2 Al 20 journal January 2011
Kondo resonance in PrTi 2 Al 20 : Photoemission spectroscopy and single-impurity Anderson model calculations journal November 2011
Structure and physical properties of RT2Cd20 (R=rare earth, T=Ni, Pd) compounds with the CeCr2Al20-type structure journal July 2014
Investigation of magnetic order in Sm T r 2 Zn 20   ( T r = Fe , Co , Ru ) and Sm T r 2 Cd 20   ( T r = Ni , Pd ) journal October 2014
Nonmagnetic ground state in the cubic compounds PrNi 2 Cd 20 and PrPd 2 Cd 20 journal March 2015
On the existence of heavy fermion ytterbium compounds journal May 1992
Layered Kondo Lattice Model for Quantum Critical β YbAlB 4 journal February 2009
Role of f Electrons in the Fermi Surface of the Heavy Fermion Superconductor β YbAlB 4 journal May 2009
Evolution of c f Hybridization and Two-Component Hall Effect in β YbAlB 4 journal October 2012
Quantum Criticality Without Tuning in the Mixed Valence Compound  -YbAlB4 journal January 2011
β YbAlB 4 : A Critical Nodal Metal journal October 2012
Strong Valence Fluctuation in the Quantum Critical Heavy Fermion Superconductor β YbAlB 4 : A Hard X-Ray Photoemission Study journal June 2010
Quantum Valence Criticality as an Origin of Unconventional Critical Phenomena journal October 2010
Quantum Critical Kondo Quasiparticles Probed by ESR in β YbAlB 4 journal July 2011
Theory of the Electron Spin Resonance in the Heavy Fermion Metal β YbAlB 4 journal March 2014
Thermoelectric Response Near a Quantum Critical Point of β YbAlB 4 and YbRh 2 Si 2 : A Comparative Study journal October 2012
Spin Fluctuations in Plutonium and Other Actinide Metals and Compounds journal June 1972
Interplay of magnetism, structure and superconductivity in heavy-fermion systems CeMIn5 and PuMGa5 journal February 2006
The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides journal October 2010
Gap symmetry and structure of Fe-based superconductors journal October 2011
Superconductivity in iron compounds journal December 2011
Correlated electrons in high-temperature superconductors journal July 1994
Pairing symmetry in cuprate superconductors journal October 2000
Doping a Mott insulator: Physics of high-temperature superconductivity journal January 2006
Manifesto for a higher Tc journal April 2011
Iron-Based Layered Superconductor La[O 1- x F x ]FeAs ( x = 0.05−0.12) with T c = 26 K journal March 2008
Investigation of the spin dynamics in YBa2Cu3O6+x by inelastic neutron scattering journal February 1991
Polarized neutron determination of the magnetic excitations in YBa 2 Cu 3 O 7 journal May 1993
Phonon and Magnetic Neutron Scattering at 41 meV in YB a 2 C u 3 O 7 journal July 1995
Neutron scattering from magnetic excitations in Bi2Sr2CaCu2O8+δ journal April 1999
Normal-state spin dynamics and temperature-dependent spin-resonance energy in optimally doped BaFe1.85Co0.15As2 journal December 2009
Antiferromagnetic spin fluctuation and superconductivity journal July 2003
Unconventional superconductivity in PuCoGa5 journal March 2005

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Robust upward dispersion of the neutron spin resonance in the heavy fermion superconductor Ce1−xYbxCoIn5 journal September 2016
Magnetic field driven complex phase diagram of antiferromagnetic heavy-fermion superconductor Ce3PtIn11 journal November 2018
Distinct domain switching in Nd0.05Ce0.95CoIn5 at low and high fields journal January 2018
Unconventional superconductivity journal April 2017
Multigap superconductivity in the charge density wave superconductor LaPt 2 Si 2 journal May 2018
Unconventional superconductivity journal November 1995
Universal Scaling Law for the Condensation Energy, U, Across a Broad Range of Superconductor Classes text January 2015
Robust Upward Dispersion of the Neutron Spin Resonance in the Heavy Fermion Superconductor Ce$_{1-x}$Yb$_{x}$CoIn$_5$ text January 2016
Distinct domain switching in Nd0.05Ce0.95CoIn5 at low and high fields text January 2017