301 citations · 2.9k across the 31 of their papers we have counts for
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Anisotropic Impurity-States, Quasiparticle Scattering and Nematic Transport in Underdoped Ca(Fe1-xCox)2As2
M. P. Allan, T. -M. Chuang, F. Massee +9
Iron-based high temperature superconductivity develops when the `parent' antiferromagnetic/orthorhombic phase is suppressed, typically by introduction of dopant atoms. But their im…
Magnetic excitations in underdoped Ba(Fe1-xCox)2As2 with x=0.047
G. S. Tucker, R. M. Fernandes, H. -F. Li +8
The magnetic excitations in the paramagnetic-tetragonal phase of underdoped Ba(Fe0.953Co0.047)2As2, as measured by inelastic neutron scattering, can be well described by a phenomen…
Doping - dependent superconducting gap anisotropy in the two-dimensional 10-3-8 pnictide Ca(PtAs)[(FePt)As]
K. Cho, M. A. Tanatar, H. Kim +4
The characteristic features of Ca(PtAs)[(FePt)As] ("10-3-8") superconductor are relatively high anisotropy and a clear separation of supercon…
Millimeter-wave study of London penetration depth temperature dependence in Ba(Fe0.926Co0.074)2As2 single crystal
A. A. Barannik, N. T. Cherpak, N. Ni +7
In-plane surface Ka-band microwave impedance of optimally doped single crystals of the Fe-based superconductor Ba(Fe0.926Co0.074)2As2 (Tc= 22.8K) was measured. Sensitive sapphire d…
Systematics of the temperature-dependent inter-plane resistivity in Ba(FeT)As with T= Rh, Ni, and Pd
M. A. Tanatar, N. Ni, A. Thaler +3
Temperature-dependent inter-plane resistivity, , was measured systematically as a function of transition metal substitution in the iron-arsenide superconductors Ba(Fe$_{1-x…
In-plane anisotropy of electrical resistivity in the strain-detwinned SrFe2As2
E. C. Blomberg, M. A. Tanatar, A. Kreyssig +7
Intrinsic, in-plane anisotropy of electrical resistivity was studied on mechanically detwinned single crystals of SrFeAs above and below the temperature of the coupled stru…
Resistivity scaling in 1111 iron-pnictide superconductors
E. Arushanov, S. Levcenko, G. Fuchs +1
We show that the zero field normal-state resistivity above Tc for various levels of electron doping - both for LaO1-xFxFeAs (La-1111) and SmO1-xFxFeAs (Sm-1111) members of the 1111…
Physical and magnetic properties of Ba(FeRu)As single crystals
A. Thaler, N. Ni, A. Kracher +3
Single crystals of Ba(FeRu)As, , have been grown and characterized by structural, magnetic and transport measurements. These measurements show that the…
-axis charge gap and its critical point in the heavily doped Ba(FeCo)As
M. A. Tanatar, N. ~Ni, A. Thaler +3
Temperature-dependent inter-plane resistivity, , was used to characterise the normal state of the iron-arsenide superconductor Ba(FeCo)As over a broad d…
Superfluid Density and Field-Induced Magnetism in Ba(Fe1-xCox)2As2 and Sr(Fe1-xCox)2As2 Measured with Muon Spin Relaxation
T. J. Williams, A. A. Aczel, E. Baggio-Saitovitch +14
We report muon spin rotation (SR) measurements of single crystal Ba(FeCo)As and Sr(FeCo)As. From measurements of the magnetic field penet…
London penetration depth in Ba(FeT)As (T=Co, Ni) superconductors irradiated with heavy ions
H. Kim, R. T. Gordon, M. A. Tanatar +8
Irradiation with Pb ions was used to study the effect of disorder on the in-plane London penetration depth, , in single crystals of Ba(FeT)As (T=Co, Ni).…
Anisotropic and quasipropagating spin excitations in superconducting Ba(Fe0.926Co0.074)2As2
H. -F. Li, C. Broholm, D. Vaknin +12
Inelastic neutron scattering from superconducting (SC) Ba(FeCo)As reveals anisotropic and quasi-two-dimensional (2D) magnetic excitations close to \text…
The magnetic form factor of iron in SrFe2As2
Y. Lee, David Vaknin, Haifeng Li +7
The iron magnetic form factor in SrFe2As2 has been determined by neutron diffraction and by density functional theory (DFT). As noted previously, the magnitude of the calculated mo…
Magneto-optical study of Ba(FeT)As (T=Co, Ni) single crystals irradiated with heavy-ions
R. Prozorov, M. A. Tanatar, B. Roy +6
Optimally doped single crystals of Ba(FeT)As (T=Co, Ni) were irradiated with 1.4 GeV Pb ions at fluences corresponding to matching fields of $B_…
Evidence from neutron diffraction for superconductivity in the stabilized tetragonal phase of CaFe2As2 under uniaxial pressure
K. Prokes, A. Kreyssig, B. Ouladdiaf +7
CaFe2As2 single crystals under uniaxial pressure applied along the c axis exhibit the coexistence of several structural phases at low temperatures. We show that the room-temperatur…
Doping dependence of heat transport in the iron-arsenide superconductor Ba(FeCo)As: from isotropic to strongly -dependent gap structure
M. A. Tanatar, J. P. Reid, H. Shakeripour +7
The temperature and magnetic field dependence of the in-plane thermal conductivity of the iron-arsenide superconductor Ba(FeCo)As was measured down to $T \s…
Complete pressure dependent phase diagrams for SrFe2As2 and BaFe2As2
E. Colombier, S. L. Bud'ko, N. Ni +1
The temperature dependent electrical resistivity of single crystalline SrFe2As2 and BaFe2As2 has been measured in a liquid medium, modified Bridgman anvil cell for pressures in exc…
Resistivity Anisotropy of FeAs ( =Ca, Sr, Ba): direct versus Montgomery technique measurements
M. A. Tanatar, N. Ni, G. D. Samolyuk +3
The anisotropy of electrical resistivity was measured in parent compounds of the iron-arsenic high temperature superconductors, AEFe2As2 with Alkali Earth elements AE=Ca,Sr, Ba. Me…
Influence of Magnetism on Phonons in CaFe2As2 Via Inelastic X-ray Scattering
S. E. Hahn, Y. Lee, N. Ni +10
In the iron pnictides, the strong sensitivity of the iron magnetic moment to the arsenic position suggests a significant relationship between phonons and magnetism. We measured the…
Doping dependent Irreversible Magnetic Properties of Ba(Fe1-xCox)2As2 Single Crystals
R. Prozorov, M. A. Tanatar, E. C. Blomberg +5
We discuss the irreversible magnetic properties of self-flux grown Ba(Fe1-xCox)2As2 single crystals for a wide range of concentrations covering the whole phase diagram from the und…
Anisotropic London Penetration Depth and Superfluid Density in Single Crystals of Iron-based Pnictide Superconductors
R. Prozorov, M. A. Tanatar, R. T. Gordon +7
In- and out-of-plane magnetic penetration depths were measured in three iron-based pnictide superconducting systems. All studied samples of both 122 systems show a robust power-law…
Structural, magnetic and superconducting phase transitions in CaFe2As2 under ambient and applied pressure
P. C. Canfield, S. L. Bud'ko, N. Ni +7
At ambient pressure CaFe2As2 has been found to undergo a first order phase transition from a high temperature, tetragonal phase to a low temperature orthorhombic / antiferromagneti…
Itinerant magnetic excitations in antiferromagnetic CaFe2As2
S. O. Diallo, V. P. Antropov, T. G. Perring +8
Neutron scattering measurements of the magnetic excitations in single crystals of antiferromagnetic CaFe2As2 reveal steeply dispersive and well-defined spin waves up to an energy o…
Lattice collapse and quenching of magnetism in CaFe2As2 under pressure: A single crystal neutron and x-ray diffraction investigation
A. I. Goldman, A. Kreyssig, K. Prokes +15
Single crystal neutron and high-energy x-ray diffraction have identified the phase lines corresponding to transitions between the ambient-pressure tetragonal (T), the antiferromagn…