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Title: Tuning the Pairing Interaction in a d -Wave Superconductor by Paramagnons Injected through Interfaces

Journal Article · · Physical Review Letters
 [1];  [2];  [2];  [1];  [3];  [1];  [1];  [1];  [4];  [2];  [2];  [1]
  1. Kyoto Univ. (Japan). Dept. of Physics
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Kyoto Univ. (Japan). Dept. of Physics; Univ. of Augsburg (Germany). Center for Electronic Correlations and Magnetism. Inst. of Physics
  4. Univ. of Tokyo (Japan). Dept. of Advanced Materials Science

Unconventional superconductivity and magnetism are intertwined on a microscopic level in a wide class of materials. A new approach to this most fundamental and hotly debated issue focuses on the role of interactions between superconducting electrons and bosonic fluctuations at the interface between adjacent layers in heterostructures. In this paper, we fabricate hybrid superlattices consisting of alternating atomic layers of the heavy-fermion superconductor $${\mathrm{CeCoIn}}_{5}$$ and antiferromagnetic (AFM) metal $${\mathrm{CeRhIn}}_{5}$$, in which the AFM order can be suppressed by applying pressure. We find that the superconducting and AFM states coexist in spatially separated layers, but their mutual coupling via the interface significantly modifies the superconducting properties. An analysis of upper critical fields reveals that, upon suppressing the AFM order by applied pressure, the force binding superconducting electron pairs acquires an extreme strong-coupling nature. Finally, this demonstrates that superconducting pairing can be tuned nontrivially by magnetic fluctuations (paramagnons) injected through the interface.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Japan Society for the Promotion of Science (JSPS)
Grant/Contract Number:
AC52-06NA25396; 25220710; 15H02014; 15H02106; 15H05457; JP15H05852; 26105004
OSTI ID:
1441308
Alternate ID(s):
OSTI ID: 1435991
Report Number(s):
LA-UR-17-28530; TRN: US1900889
Journal Information:
Physical Review Letters, Vol. 120, Issue 18; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

References (38)

From Kondo lattices to Kondo superlattices journal June 2016
Ising Incommensurate Spin Resonance of CeCoIn 5 : A Dynamical Precursor of the Q Phase journal July 2015
A Drastic Change of the Fermi Surface at a Critical Pressure in CeRhIn 5 : dHvA Study under Pressure journal April 2005
Superconductivity and Quantum Criticality in C e C o I n 5 journal September 2002
Competition and/or coexistence of antiferromagnetism and superconductivity in CeRhIn 5 and CeCoIn 5 journal March 2010
Electronic duality in strongly correlated matter journal May 2008
Locally Non-centrosymmetric Superconductivity in Multilayer Systems journal March 2012
From quantum matter to high-temperature superconductivity in copper oxides journal February 2015
A Quantum Critical Point Lying Beneath the Superconducting Dome in Iron Pnictides journal March 2014
Coupled Superconducting and Magnetic Order in CeCoIn5 journal September 2008
What makes the T c of FeSe/SrTiO 3 so high? journal November 2015
Incommensurate magnetic structure of CeRhIn 5 journal December 2000
Tuning the Magnetic Quantum Criticality of Artificial Kondo Superlattices CeRhIn 5 / YbRhIn 5 journal May 2016
Tuning the Dimensionality of the Heavy Fermion Compound CeIn3 journal February 2010
Progress in Heavy-Fermion Superconductivity: Ce115 and Related Materials journal January 2012
Magnetically mediated superconductivity in heavy fermion compounds journal July 1998
Interfacial mode coupling as the origin of the enhancement of Tc in FeSe films on SrTiO3 journal November 2014
Enhanced superconductivity due to forward scattering in FeSe thin films on SrTiO 3 substrates journal February 2016
Angular Position of Nodes in the Superconducting Gap of Quasi-2D Heavy-Fermion Superconductor CeCoIn 5 journal July 2001
The Quantum Critical Point in CeRhIn 5 : A Resistivity Study journal November 2008
Quasiparticle mass enhancement approaching optimal doping in a high-Tc superconductor journal March 2015
Anomalous Upper Critical Field in CeCoIn 5 / YbCoIn 5 Superlattices with a Rashba-Type Heavy Fermion Interface journal October 2012
Monolayer FeSe on SrTiO 3 journal March 2017
Imaging Cooper pairing of heavy fermions in CeCoIn5 journal July 2013
Non-Fermi Liquid Behavior in the Magnetotransport of Ce M In 5 ( M : Co and Rh): Striking Similarity between Quasi Two-Dimensional Heavy Fermion and High- T c Cuprates journal February 2007
Extremely strong-coupling superconductivity in artificial two-dimensional Kondo lattices journal October 2011
Hidden magnetism and quantum criticality in the heavy fermion superconductor CeRhIn5 journal March 2006
Interface between heavy fermions and normal electrons investigated by spatially resolved nuclear magnetic resonance journal December 2015
Visualizing nodal heavy fermion superconductivity in CeCoIn5 journal July 2013
Unconventional heavy-fermion superconductor CeCoIn 5 : dc magnetization study at temperatures down to 50 mK journal April 2002
Angular Position of Nodes in the Superconducting Gap of Quasi-2D Heavy-Fermion Superconductor CeCoIn5 text January 2001
Electronic Duality in Strongly Correlated Matter text January 2008
Extremely strong coupling superconductivity in artificial two-dimensional Kondo lattices text January 2011
Quantum critical point lying beneath the superconducting dome in iron-pnictides text January 2013
Interfacial mode coupling as the origin of the enhancement of Tc in FeSe films on SrTiO3 text January 2013
Quasiparticle mass enhancement approaching optimal doping in a high-Tc superconductor text January 2014
Tuning of magnetic quantum criticality in artificial Kondo superlattice CeRhIn5/YbRhIn5 text January 2016
Monolayer FeSe on SrTiO$_3$ text January 2017

Cited By (2)

Anti-PbO-type CoSe film: a possible analog to FeSe superconductors journal October 2018
Coupling between the heavy-fermion superconductor CeCoIn 5 and the antiferromagnetic metal CeIn 3 through the atomic interface journal July 2019