426 citations · 2.4k across the 27 of their papers we have counts for
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Topological PdBi half-Heusler semimetals: a new family of non-centrosymmetric magnetic superconductors
Yasuyuki Nakajima, Rongwei Hu, Kevin Kirshenbaum +9
We report superconductivity and magnetism in a new family of topological semimetals, the ternary half Heusler compounds PdBi ( : rare earth). In this series, tuning of the ra…
Isotropic multi-gap superconductivity in BaFe1.9Pt0.1As2 from thermal transport and spectroscopic measurements
Steven Ziemak, K. Kirshenbaum, S. R. Saha +11
Thermal conductivity, point contact spectroscopy, angle-resolved photoemission and Raman spectroscopy measurements were performed on BaFe1.9Pt0.1As2 single crystals obtained from t…
Parallel suppression of superconductivity and Fe moment in the collapsed tetragonal phase of Ca0.67Sr0.33Fe2As2 under pressure
J. R. Jeffries, N. P. Butch, M. J. Lipp +8
Using non-resonant Fe K-beta x-ray emission spectroscopy, we reveal that Sr-doping of CaFe2As2 decouples the Fe moment from the volume collapse transition, yielding a collapsed-tet…
Pressure-Induced Unconventional Superconducting Phase in the Topological Insulator Bi2Se3
K. Kirshenbaum, P. S. Syers, A. P. Hope +7
Simultaneous low-temperature electrical resistivity and Hall effect measurements were performed on single-crystalline Bi2Se3 under applied pressures up to 50 GPa. As a function of…
Universal pair-breaking in transition metal-substituted iron-pnictide superconductors
Kevin Kirshenbaum, Shanta R. Saha, Steven Ziemak +2
The experimental transport scattering rate was determined for a wide range of optimally doped transition metal-substituted FeAs-based compounds with the ThCr2Si2 (122) crystal stru…
The suppression of magnetism and the development of superconductivity within the collapsed tetragonal phase of Ca0.67Sr0.33Fe2As2 at high pressure
J. R. Jeffries, N. P. Butch, K. Kirshenbaum +4
Structural and electronic characterization of (Ca0.67Sr0.33)Fe2As2 has been performed as a func- tion of pressure up to 12 GPa using conventional and designer diamond anvil cells.…
Tuning magnetism in FeAs-based materials via tetrahedral structure
K. Kirshenbaum, N. P. Butch, S. R. Saha +4
Resistivity, magnetic susceptibility, neutron scattering and x-ray crystallography measurements were used to study the evolution of magnetic order and crystallographic structure in…
Superconductivity in the topological semimetal YPtBi
Nicholas P. Butch, P. Syers, Kevin Kirshenbaum +2
The noncentrosymmetric Half Heusler compound YPtBi exhibits superconductivity below a critical temperature T_c = 0.77 K with a zero-temperature upper critical field H_c2(0) = 1.5 T…
Structural collapse and superconductivity in rare earth-doped CaFe2As2
S. R. Saha, N. P. Butch, T. Drye +6
Aliovalent rare earth substitution into the alkaline earth site of CaFe2As2 single-crystals is used to fine-tune structural, magnetic and electronic properties of this iron-based s…
Superconductivity and magnetism in platinum-substituted SrFe2As2 single crystals
Kevin Kirshenbaum, Shanta R. Saha, Tyler Drye +1
Single crystals of SrFe2-xPtxAs2 (0 < x < 0.36) were grown using the self flux solution method and characterized using x-ray crystallography, electrical transport, magnetic suscept…
Uniform chemical pressure effect in solid solutions Ba(1-x)Sr(x)Fe2As2 and Sr(1-x)Ca(x)Fe2As2
Shanta R. Saha, Kevin Kirshenbaum, Nicholas P. Butch +2
The effect of alkaline earth substitution on structural parameters was studied in high-quality single crystals of Ba(1-x)Sr(x)Fe2As2 and Sr(1-x)Ca(x)Fe2As2 grown by the self-flux m…
Evidence of a universal and isotropic 2Δ/kBTC ratio in 122-type iron pnictide superconductors over a wide doping range
Xiaohang Zhang, Yoon Seok Oh, Yong Liu +8
We have systematically investigated the doping and the directional dependence of the gap structure in the 122-type iron pnictide superconductors by point contact Andreev reflection…
Superconductivity at 23 K in Pt doped BaFe2As2 single crystals
S. R. Saha, T. Drye, K. Kirshenbaum +3
We report superconductivity in single crystals of the new iron-pnictide system BaFe1.9Pt0.1As2 grown by a self-flux solution method and characterized via x-ray, transport, magnetic…
Effective carrier type and field-dependence of the reduced-Tc superconducting state in SrFe(2-x)Ni(x)As2
N. P. Butch, S. R. Saha, X. H. Zhang +3
Measurements of the Hall effect, thermoelectric power, magnetic susceptibility and upper and lower critical fields were performed on single crystals of SrFe(2-x)Ni(x)As2, an FeAs-b…
Annealing effects on superconductivity in SrFe2-xNixAs2
Shanta R. Saha, Nicholas P. Butch, Kevin Kirshenbaum +1
Superconductivity has been explored in single crystals of the Ni-doped FeAs-compound SrFe2-xNixAs2 grown by self-flux solution method. The antiferromagnetic order associated with t…
Josephson effect between electron-doped and hole-doped iron pnictide single crystals
Xiaohang Zhang, Shanta Saha, Nicholas P. Butch +8
We have observed the Josephson effect in junctions formed between single crystals of SrFe1.74Co0.26As2 and Ba0.23K0.77Fe2As2. I-V curves showed resistively-shunted junction charact…
Superconductivity in the Iron-Pnictide Parent Compound SrFe2As2
K. C. Kirshenbaum, S. R. Saha, N. P. Butch +2
The appearance of superconductivity at ambient pressures in the undoped iron pnictide parent compound SrFe2As2 is studied experimentally using several techniques and approaches to…
Evolution of bulk superconductivity in SrFe2As2 with Ni substitution
S. R. Saha, N. P. Butch, K. Kirshenbaum +1
Single crystals of the Ni-doped FeAs-based superconductor SrFe2-xNixAs2 were grown using a self-flux solution method and characterized via x-ray measurements and low temperature tr…
Superconducting and ferromagnetic phases induced by lattice distortions in SrFe2As2
S. R. Saha, N. P. Butch, K. Kirshenbaum +1
Single crystals of SrFe2As2 grown using a self-flux solution method were characterized via x-ray, transport and magnetization studies, revealing a superconducting phase below T_c =…