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

Title: Role of magnetism in superconductivity of BaFe2As2: Study of 5d Au-doped crystals

Journal Article · · Physical Review. B, Condensed Matter and Materials Physics
 [1];  [1];  [1];  [2];  [2];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of Florida, Gainesville, FL (United States)

We investigate properties of BaFe2As2 (122) single crystals upon gold doping, which is the transition metal with the highest atomic weight. The Au substitution into the FeAs-planes of 122 crystal structure (Au-122) is only possible up to a small amount of ~3%. We find that 5d is more effective in reducing magnetism in 122 than its counter 3d Cu, and this relates to superconductivity. We provide evidence of short-range magnetic fluctuations and local lattice inhomogeneities that may prevent strong percolative superconductivity in Ba(Fe1-xAux)2As2.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725; FG02-86ER45268
OSTI ID:
1286899
Alternate ID(s):
OSTI ID: 1224601
Journal Information:
Physical Review. B, Condensed Matter and Materials Physics, Vol. 92, Issue 9; ISSN 1098-0121
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

References (44)

Iron-Based Layered Superconductor La[O 1- x F x ]FeAs ( x = 0.05−0.12) with T c = 26 K journal March 2008
Chemistry and electronic structure of iron-based superconductors journal August 2011
Superconductivity gets an iron boost journal March 2010
Magnetism in Fe-based superconductors journal April 2010
Pressure effects on two superconducting iron-based families journal September 2011
Electronic correlations in the superconductor La Fe As O 0.89 F 0.11 with low carrier density journal May 2008
Magnetism and its microscopic origin in iron-based high-temperature superconductors journal October 2012
Superconductivity in iron compounds journal December 2011
Magnetism, superconductivity, and pairing symmetry in iron-based superconductors journal October 2008
Superconductivity at 22 K in Co-Doped BaFe 2 As 2 Crystals journal September 2008
Bulk synthesis of iron-based superconductors journal April 2013
To What Extent Iron-Pnictide New Superconductors Have Been Clarified: A Progress Report journal June 2009
The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides journal October 2010
Electronic structure of Fe-based superconductors journal May 2009
Fe-based superconductors: an angle-resolved photoemission spectroscopy perspective journal November 2011
Gap symmetry and structure of Fe-based superconductors journal October 2011
Iron-based superconductors, seven years later journal June 2015
Spin-density-wave anomaly at 140 K in the ternary iron arsenide BaFe 2 As 2 journal July 2008
Structure and anisotropic properties of BaFe 2 x Ni x As 2 ( x = 0 , 1, and 2) single crystals journal March 2009
Anisotropic thermodynamic and transport properties of single-crystalline Ba 1 x K x Fe 2 As 2 ( x = 0 and 0.45) journal July 2008
Fermi-Surface Reconstruction and Complex Phase Equilibria in CaFe 2 As 2 journal May 2014
Complex structures of different CaFe2As2 samples journal February 2014
Annealing effects on the properties of BFe 2 As 2 (B = Ca, Sr, Ba) superconducting parents journal January 2014
Absence of superconductivity in hole-doped BaFe 2 x Cr x As 2 single crystals journal June 2009
Effect of molybdenum 4 d hole substitution in BaFe 2 As 2 journal January 2012
Competing magnetic ground states in nonsuperconducting Ba( Fe 1 x Cr x ) 2 As 2 as seen via neutron diffraction journal February 2011
Antiferromagnetic ordering in the absence of structural distortion in Ba ( Fe 1 x Mn x ) 2 As 2 journal December 2010
BaT2As2 single crystals (T=Fe, Co, Ni) and superconductivity upon Co-doping journal May 2009
Temperature versus doping phase diagrams for Ba ( Fe 1 x TM x ) 2 As 2 ( TM = Ni , Cu , Cu / Co ) single crystals journal July 2010
Phase diagrams of Ba ( Fe 1 x M x ) 2 As 2 single crystals ( M = Rh and Pd) journal July 2009
FeAs-Based Superconductivity: A Case Study of the Effects of Transition Metal Doping on BaFe 2 As 2 journal August 2010
Superconductivity induced by doping platinum in BaFe 2 As 2 journal March 2010
Superconductivity in Pt Doped BaFe 2 As 2 journal June 2012
Microstructure and superconductivity of Ir-doped BaFe2As2 superconductor journal January 2010
Materials Chemistry of BaFe 2 As 2 : A Model Platform for Unconventional Superconductivity journal February 2010
Preparation and Crystal Structures of Ternary Rare Earth Silver and Gold Arsenides LnAgAs2 and LnAuAs2 with Ln = La–Nd, Sm, Gd, and Tb journal May 2003
Thermoelectric power and Hall coefficient measurements on Ba ( Fe 1 x T x ) 2 As 2 ( T = Co and Cu) journal August 2009
Electron-hole asymmetry in the superconductivity of doped BaFe 2 As 2 seen via the rigid chemical-potential shift in photoemission journal March 2011
Dependence of Carrier Doping on the Impurity Potential in Transition-Metal-Substituted FeAs-Based Superconductors journal March 2013
Cu Substitution Effects on the Local Magnetic Properties of Ba ( Fe 1 x Cu x ) 2 As 2 : A Site-Selective As 75 and Cu 63 NMR Study journal September 2014
A semimetal model of the normal state magnetic susceptibility and transport properties of Ba(Fe1−xCox)2As2 journal February 2010
Doping-dependent specific heat study of the superconducting gap in Ba ( Fe 1 x Co x ) 2 As 2 journal May 2010
Jump in specific heat at the superconducting transition temperature in Ba ( Fe 1 x Co x ) 2 As 2 and Ba ( Fe 1 x Ni x ) 2 As 2 single crystals journal June 2009
Four-circle single-crystal neutron diffractometer at the High Flux Isotope Reactor journal May 2011

Cited By (1)

Deep data analysis via physically constrained linear unmixing: universal framework, domain examples, and a community-wide platform journal April 2018

Similar Records

Superconductivity with Tc ≈ 7 K under pressure for Cu- and Au-doped BaFe2As2
Journal Article · Wed Apr 22 00:00:00 EDT 2020 · Journal of Physics. Condensed Matter · OSTI ID:1286899

Deep data mining in a real space: Separation of intertwined electronic responses in a lightly doped BaFe2As2
Journal Article · Tue Oct 25 00:00:00 EDT 2016 · Nanotechnology · OSTI ID:1286899

Unusually high critical current of clean P-doped BaFe{sub 2}As{sub 2} single crystalline thin film
Journal Article · Mon Feb 16 00:00:00 EST 2015 · Applied Physics Letters · OSTI ID:1286899