Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Local superconductivity in vanadium iron arsenide

Journal Article · · Physical Review B
 [1];  [2];  [1];  [2];  [2];  [2];  [3];  [1];  [1];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science (CNMS)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Division
+ Show Author Affiliations
We investigate the chemical substitution of group 5 into BaFe2As2 (“122”) iron arsenide, in the effort to understand why Fe-site hole doping of this compound (e.g., using group 5 or 6) does not yield bulk superconductivity. We find an increase in the c-lattice parameter of the BaFe2As2 with the substitution of V, Nb, or Ta; the reduction in c predicts the lack of bulk superconductivity [Konzen and Sefat, J. Phys.: Condens. Matter 29, 083001 (2017)] that is confirmed here through transport and magnetization results. However, our spectroscopy measurements find a coexistence of antiferromagnetic and local superconducting nanoscale regions in V-122, observed in a transition-metal hole-doped iron arsenide. In BaFe2As2, there is a complex connection between local parameters such as composition and lattice strain, average lattice details, and the emergence of bulk quantum states such as superconductivity and magnetism.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1606885
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 10 Vol. 100; ISSN 2469-9950; ISSN PRBMDO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (28)

Bulk synthesis of iron-based superconductors journal April 2013
Effect of Surface Morphology and Magnetic Impurities on the Electronic Structure in Cobalt-Doped BaFe 2 As 2 Superconductors journal February 2017
A route for a strong increase of critical current in nanostrained iron-based superconductors journal October 2016
Strain induced superconductivity in the parent compound BaFe2As2 journal December 2013
Spin-filter Josephson junctions journal September 2011
Anomalous magneto-elastic and charge doping effects in thallium-doped BaFe2As2 journal February 2016
Microstructure and superconductivity of Ir-doped BaFe2As2 superconductor journal January 2010
Interface-induced superconductivity at ∼25 K at ambient pressure in undoped CaFe 2 As 2 single crystals journal October 2016
Spectroscopic scanning tunneling microscopy insights into Fe-based superconductors journal November 2011
Lattice parameters guide superconductivity in iron-arsenides journal January 2017
Spin-density-wave anomaly at 140 K in the ternary iron arsenide BaFe 2 As 2 journal July 2008
Problems with reconciling density functional theory calculations with experiment in ferropnictides journal August 2008
Absence of superconductivity in hole-doped BaFe 2 − x Cr x As 2 single crystals journal June 2009
Phase diagrams of Ba ( Fe 1 − x M x ) 2 As 2 single crystals ( M = Rh and Pd) journal July 2009
Superconductivity induced by doping platinum in BaFe 2 As 2 journal March 2010
Evidence for dominant Pauli paramagnetic effect in the upper critical field of single-crystalline FeTe 0.6 Se 0.4 journal May 2010
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
Competing magnetic ground states in nonsuperconducting Ba( Fe 1 − x Cr x ) 2 As 2 as seen via neutron diffraction journal February 2011
Effect of molybdenum 4 d hole substitution in BaFe 2 As 2 journal January 2012
Evidence for filamentary superconductivity nucleated at antiphase domain walls in antiferromagnetic CaFe 2 As 2 journal January 2012
Role of magnetism in superconductivity of BaF e 2 A s 2 : Study of 5 d Au-doped crystals journal September 2015
Persistent magnetism in silver-doped BaF e 2 A s 2 crystals journal October 2016
Highly anisotropic quasiparticle interference patterns in the spin-density wave state of the iron pnictides journal December 2017
Superconductivity at 22 K in Co-Doped BaFe 2 As 2 Crystals journal September 2008
Superconducting and Ferromagnetic Phases Induced by Lattice Distortions in Stoichiometric SrFe 2 As 2 Single Crystals journal July 2009
Quasiparticle Interference in the Spin-Density Wave Phase of Iron-Based Superconductors journal June 2010
Effects of vanadium doping on BaFe 2 As 2 journal June 2018
Tuning the ground state of BaFe 2 As 2 : Phase diagrams and empirical trends journal August 2011

Similar Records

Nanoscale interlayer defects in iron arsenides
Journal Article · Fri Jun 28 20:00:00 EDT 2019 · Journal of Solid State Chemistry · OSTI ID:1542220
Inelastic neutron scattering studies of the spin and lattice dynamics in iron arsenide compounds.
Journal Article · Fri Mar 20 00:00:00 EDT 2009 · Physica C · OSTI ID:1009337
Inelastic Neutron Scattering Studies of the Spin and Lattice Dynamics inIron Arsenide Compounds
Journal Article · Wed Dec 31 23:00:00 EST 2008 · Physica C · OSTI ID:979596

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY