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Title: Strong enhancement of s -wave superconductivity near a quantum critical point of Ca 3 Ir 4 Sn 13

Journal Article · · Physical Review. B, Condensed Matter and Materials Physics
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  1. Paul Scherrer Inst. (PSI), Villigen (Switzerland)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.

We report microscopic studies by muon spin rotation/relaxation as a function of pressure of the Ca 3 Ir 4 Sn 13 and Sr3Ir4Sn13 system displaying superconductivity and a structural phase transition associated with the formation of a charge density wave (CDW). Our findings show a strong enhancement of the superfluid density and a dramatic increase of the pairing strength above a pressure of ≈ 1.6 GPa giving direct evidence of the presence of a quantum critical point separating a superconducting phase coexisting with CDW from a pure superconducting phase. The superconducting order parameter in both phases has the same s-wave symmetry. In spite of the conventional phonon-mediated BCS character of the weakly correlated (Ca1-xSrx)3Ir4Sn13 system the dependence of the effective superfluid density on the critical temperature puts this compound in the “Uemura” plot close to unconventional superconductors. This system exemplifies that conventional BCS superconductors in the presence of competing orders or multi-band structure can also display characteristics of unconventional superconductors.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC00112704
OSTI ID:
1240591
Alternate ID(s):
OSTI ID: 1225822
Report Number(s):
BNL-111751-2016-JA; PRBMDO; R&D Project: PM016; KC0201050
Journal Information:
Physical Review. B, Condensed Matter and Materials Physics, Vol. 92, Issue 19; ISSN 1098-0121
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 30 works
Citation information provided by
Web of Science

References (50)

From quantum matter to high-temperature superconductivity in copper oxides journal February 2015
High-temperature superconductivity in iron-based materials journal August 2010
A common thread: The pairing interaction for unconventional superconductors journal October 2012
Colloquium : Theory of intertwined orders in high temperature superconductors journal May 2015
Quantum criticality journal January 2005
A new family of ternary intermetallic superconducting/magnetic stannides journal June 1980
Crystal growth and crystal-chemical investigation of systems containing new superconducting and/or magnetic ternary stannides journal June 1980
Pressure- and Composition-Induced Structural Quantum Phase Transition in the Cubic Superconductor ( Sr , Ca ) 3 Ir 4 Sn 13 journal December 2012
Nodeless superconductivity in Ca 3 Ir 4 Sn 13 : Evidence from quasiparticle heat transport journal August 2012
Crystal structure and phonon softening in Ca 3 Ir 4 Sn 13 journal July 2015
Characteristics of the phase transition near 147 K in Sr 3 Ir 4 Sn 13 journal March 2014
Weakly-correlated nodeless superconductivity in single crystals of Ca 3 Ir 4 Sn 13 and Sr 3 Ir 4 Sn 13 revealed by critical fields, Hall effect, and magnetoresistance measurements journal March 2015
Ca 3 Ir 4 Sn 13 : A weakly correlated nodeless superconductor journal July 2012
Unconventional charge-density wave in Sr 3 Ir 4 Sn 13 cubic superconductor revealed by optical spectroscopy study journal July 2014
Ambient Pressure Structural Quantum Critical Point in the Phase Diagram of ( Ca x Sr 1 x ) 3 Rh 4 Sn 13 journal March 2015
Lattice distortion associated with Fermi-surface reconstruction in Sr 3 Rh 4 Sn 13 journal April 2015
Charge order and its connection with Fermi-liquid charge transport in a pristine high-Tc cuprate journal December 2014
Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3O6.67 journal October 2012
Coexistence of Superconductivity and Ferromagnetic Spin-Fluctuation in Ca 3 Ir 4 Sn 13 Single Crystal journal November 2010
Microscopic studies of the normal and superconducting state of Ca 3 Ir 4 Sn 13 journal September 2013
Superconducting and magnetic properties of Sr 3 Ir 4 Sn 13 journal October 2014
Superconducting properties of Ca 3 Ir 4 Sn 13 : a μ SR study journal December 2014
Superconducting state in the ternary stannide superconductors R 3 T 4 Sn 13 ( R = La, Sr; T = Rh, Ir) with a quasiskutterudite structure journal May 2011
Superconducting Properties of Ca 3 T 4 Sn 13 (T = Co, Rh, and Ir) journal January 2011
Pressure Effects on the Transition Temperature and the Magnetic Field Penetration Depth in the Pyrochlore Superconductor R b O s 2 O 6 journal October 2004
Pressure effect on the in-plane magnetic penetration depth in YBa 2 Cu 4 O 8 journal April 2005
Muon spin rotation investigation of the pressure effect on the magnetic penetration depth in YBa 2 Cu 3 O x journal November 2011
Properties of the ideal Ginzburg-Landau vortex lattice journal August 2003
Die thermodynamischen Funktionen des Supraleiters journal June 1959
Magnetic penetration depth of MgB2 journal March 2003
Quasiparticle phenomenology for thermodynamics of strong-coupling superconductors journal August 1973
Dependence of T c on hydrostatic pressure in superconducting MgB 2 journal August 2001
Pressure-Induced Unconventional Superconducting Phase in the Topological Insulator Bi 2 Se 3 journal August 2013
Sudden reversal in the pressure dependence of T c in the iron-based superconductor CsFe 2 As 2 : A possible link between inelastic scattering and pairing symmetry journal April 2014
Assembling the puzzle of superconducting elements: a review journal November 2004
Transition Temperature of Strong-Coupled Superconductors journal March 1968
Transition temperature of strong-coupled superconductors reanalyzed journal August 1975
Pressure effect on the magnetic penetration depth in Mg B 2 journal September 2005
Comparative study of the pressure effects on the magnetic penetration depth in electron- and hole-doped cuprate superconductors journal June 2009
Electronic structure and phonon instabilities in the vicinity of the quantum phase transition and superconductivity of ( Sr , Ca ) 3 Ir 4 Sn 13 journal February 2014
Strong-coupling effects in alkali-metal-doped C 60 journal January 1993
Pressure Induced Superconductivity in Pristine 1 T TiSe 2 journal November 2009
Charge- and spin-density waves in existing superconductors: competition between Cooper pairing and Peierls or excitonic instabilities journal September 2002
Pressure-Induced Superconductivity in Noncentrosymmetric Heavy-Fermion CeRhSi 3 journal December 2005
Superconductivity on the border of itinerant-electron ferromagnetism in UGe2 journal August 2000
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
A Sharp Peak of the Zero-Temperature Penetration Depth at Optimal Composition in BaFe2(As1-xPx)2 journal June 2012
Condensation, excitation, pairing, and superfluid density in high- T c superconductors: the magnetic resonance mode as a roton analogue and a possible spin-mediated pairing journal September 2004
Muon spin rotation studies of SmFeAsO 0.85 and NdFeAsO 0.85 superconductors journal September 2008
Strong Coupling Superconductivity in the Vicinity of the Structural Quantum Critical Point in ( Ca x Sr 1 x ) 3 Rh 4 Sn 13 journal November 2015

Cited By (5)

Charge density wave quantum critical point with strong enhancement of superconductivity journal July 2017
Study of Nb 0.18 Re 0.82 non-centrosymmetric superconductor in the normal and superconducting states journal March 2019
Vortex phase diagram study in the superconductor Ca 3 Ir 4 Sn 13 journal August 2018
Possible quantum fluctuations in the vicinity of the quantum critical point of ( Sr , Ca ) 3 Ir 4 Sn 13 revealed by high-energy x-ray diffraction journal March 2020
Study of Nb$_{0.18}$Re$_{0.82}$ non-centrosymmetric superconductor in the normal and superconducting states text January 2018