skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Disorder-Driven Transition from s ± to s + + Superconducting Order Parameter in Proton Irradiated Ba ( Fe 1 - x Rh x ) 2 As 2 Single Crystals

Abstract

Here, microwave measurements of the London penetration depth and critical temperature T c were used to show evidence of a disordered-driven transition from s ± to s ++ order parameter symmetry in optimally doped Ba(Fe 1–xRh x) 2As 2 single crystals, where disorder was induced by means of 3.5 MeV proton irradiation. Signatures of such a transition, as theoretically predicted, are found as a drop in the low-temperature values of the London penetration depth and a virtually disorder-independent superconducting T c. We show how these experimental observations can be described by multiband Eliashberg calculations in which the effect of disorder is accounted for in a suitable way. To this aim, an effective two-band approach is adopted, allowing us to treat disorder in a range between the Born approximation and the unitary limit.

Authors:
 [1];  [1];  [2];  [1];  [3];  [3];  [3]
  1. Politecnico di Torino, Torino (Italy); Istituto Nazionale di Fisica Nucleare, Torino (Italy)
  2. Politecnico di Torino, Torino (Italy); National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moskva (Russia)
  3. Ames Lab. and Iowa State Univ., Ames, IA (United States)
Publication Date:
Research Org.:
Ames Lab., Ames, IA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1471223
Alternate Identifier(s):
OSTI ID: 1468839
Report Number(s):
IS-J-9753
Journal ID: ISSN 0031-9007; PRLTAO
Grant/Contract Number:  
AC02-07CH11358
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 121; Journal Issue: 10; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Ghigo, Gianluca, Torsello, D., Ummarino, G. A., Gozzelino, L., Tanatar, M. A., Prozorov, R., and Canfield, P. C. Disorder-Driven Transition from s± to s++ Superconducting Order Parameter in Proton Irradiated Ba(Fe1-xRhx)2As2 Single Crystals. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.121.107001.
Ghigo, Gianluca, Torsello, D., Ummarino, G. A., Gozzelino, L., Tanatar, M. A., Prozorov, R., & Canfield, P. C. Disorder-Driven Transition from s± to s++ Superconducting Order Parameter in Proton Irradiated Ba(Fe1-xRhx)2As2 Single Crystals. United States. https://doi.org/10.1103/PhysRevLett.121.107001
Ghigo, Gianluca, Torsello, D., Ummarino, G. A., Gozzelino, L., Tanatar, M. A., Prozorov, R., and Canfield, P. C. Tue . "Disorder-Driven Transition from s± to s++ Superconducting Order Parameter in Proton Irradiated Ba(Fe1-xRhx)2As2 Single Crystals". United States. https://doi.org/10.1103/PhysRevLett.121.107001. https://www.osti.gov/servlets/purl/1471223.
@article{osti_1471223,
title = {Disorder-Driven Transition from s± to s++ Superconducting Order Parameter in Proton Irradiated Ba(Fe1-xRhx)2As2 Single Crystals},
author = {Ghigo, Gianluca and Torsello, D. and Ummarino, G. A. and Gozzelino, L. and Tanatar, M. A. and Prozorov, R. and Canfield, P. C.},
abstractNote = {Here, microwave measurements of the London penetration depth and critical temperature Tc were used to show evidence of a disordered-driven transition from s± to s++ order parameter symmetry in optimally doped Ba(Fe1–xRhx)2As2 single crystals, where disorder was induced by means of 3.5 MeV proton irradiation. Signatures of such a transition, as theoretically predicted, are found as a drop in the low-temperature values of the London penetration depth and a virtually disorder-independent superconducting Tc. We show how these experimental observations can be described by multiband Eliashberg calculations in which the effect of disorder is accounted for in a suitable way. To this aim, an effective two-band approach is adopted, allowing us to treat disorder in a range between the Born approximation and the unitary limit.},
doi = {10.1103/PhysRevLett.121.107001},
url = {https://www.osti.gov/biblio/1471223}, journal = {Physical Review Letters},
issn = {0031-9007},
number = 10,
volume = 121,
place = {United States},
year = {2018},
month = {9}
}

Journal Article:

Citation Metrics:
Cited by: 3 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Disorder-induced transition between s ± and s + + states in two-band superconductors
journal, November 2011


Impurities in multiband superconductors
journal, December 2016


Field-induced coexistence of s + + and s ± superconducting states in dirty multiband superconductors
journal, February 2018


Tuning the response of YBCO microwave resonators by heavy-ion patterned micro-channels
journal, September 2012


Particle and Heavy Ion Transport code System, PHITS, version 2.52
journal, September 2013


Unconventional Superconductivity with a Sign Reversal in the Order Parameter of LaFeAsO 1 x F x
journal, July 2008


Phenomenological model of the microwave surface impedance of high- T c superconducting films
journal, June 2000


Magnetism, superconductivity, and pairing symmetry in iron-based superconductors
journal, October 2008


Pairing symmetry and pairing state in ferropnictides: Theoretical overview
journal, May 2009


Effects of heavy-ion irradiation on the microwave surface impedance of (Ba 1− x K x )Fe 2 As 2 single crystals
journal, February 2018


Unconventional Disorder Effects in Correlated Superconductors
journal, December 2016


Tracing the s ± symmetry in iron pnictides by controlled disorder
journal, May 2016


Effects of magnetism and doping on the electron-phonon coupling in BaFe 2 As 2
journal, July 2010


Using controlled disorder to distinguish s ± and s + + gap structure in Fe-based superconductors
journal, March 2013


Phase diagrams of Ba ( Fe 1 x M x ) 2 As 2 single crystals ( M = Rh and Pd)
journal, July 2009


SRIM – The stopping and range of ions in matter (2010)
journal, June 2010

  • Ziegler, James F.; Ziegler, M. D.; Biersack, J. P.
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 268, Issue 11-12
  • https://doi.org/10.1016/j.nimb.2010.02.091

High-temperature superconductivity in iron-based materials
journal, August 2010


Three-band s ± Eliashberg theory and the superconducting gaps of iron pnictides
journal, November 2009


Disorder-induced topological change of the superconducting gap structure in iron pnictides
journal, November 2014


Details of the disorder-induced transition between s ± and s ++ states in the two-band model for Fe-based superconductors
journal, January 2018


Penetration Depth and Quasiparticle Conductivity of Co- and K-Doped BaFe 2 As 2 Crystals, Investigated by a Microwave Coplanar Resonator Technique
journal, April 2016


Meissner-London state in superconductors of rectangular cross section in a perpendicular magnetic field
journal, July 2000


Normal-state spin dynamics and temperature-dependent spin-resonance energy in optimally doped BaFe1.85Co0.15As2
journal, December 2009


Gap symmetry and structure of Fe-based superconductors
journal, October 2011


Multiband model for penetration depth in MgB 2
journal, August 2002


    Works referencing / citing this record:

    Electrodynamic response of Ba(Fe1−xRhx)2As2 across the s± to s++ order parameter transition
    journal, July 2019


    Electrodynamic response of Ba(Fe1−xRhx)2As2 across the s± to s++ order parameter transition
    journal, July 2019


    Eliashberg Analysis of the Electrodynamic Response of Ba(Fe1−xRhx)2As2 Across the s± to s++ Order Parameter Transition
    journal, December 2019


    Analysis of the London penetration depth in Ni-doped CaKFe 4 As 4
    journal, September 2019