185 citations · 1.2k across the 38 of their papers we have counts for
26 papers · 1 filter
Topological nodal -wave superconductivity in PtBi
Susmita Changdar, Oleksandr Suvorov, Andrii Kuibarov +11
Most superconducting materials are well-understood and conventional in the sense that the pairs of electrons that cause the superconductivity by their condensation have the highest…
3D superconducting gap in FeSe from ARPES
Y. S. Kushnirenko, A. V. Fedorov, E. Haubold +7
We present a systematic angle-resolved photoemission spectroscopy study of the superconducting gap in FeSe. The gap function is determined in a full Brillouin zone including all Fe…
Experimental evidence for the importance of Hund's exchange interaction for the incoherence of the charge carriers in iron-based superconductors
J. Fink, E. D. L. Rienks, S. Thirupathaiah +10
Angle-resolved photoemission spectroscopy (ARPES) is used to study the scattering rates of charge carriers from the hole pockets near Gamma in the iron-based high-Tc hole doped sup…
Unusual Dirac fermions on the surface of noncentrosymmetric - BiPd superconductor
S. Thirupathaiah, Soumi Ghosh, Rajveer Jha +8
Combining multiple emergent correlated properties such as superconductivity and magnetism within the topological matrix can have exceptional consequences in garnering new and exoti…
Electronic structure and ultrafast dynamics of FeAs-based superconductors by angle- and time-resolved photoemission spectroscopy
I. Avigo, S. Thirupathaiah, E. D. L. Rienks +17
In this article we review our angle- and time-resolved photoemission studies (ARPES and trARPES) on various ferropnictides.
Effect of impurity substitution on band structure and mass renormalization of the correlated FeTeSe superconductor
S. Thirupathaiah, J. Fink, P. K. Maheshwari +6
Using angle-resolved photoemission spectroscopy (ARPES), we studied the effect of the impurity potential on the electronic structure of FeTeSe superconductor by sub…
Doping dependence and electron-boson coupling in the ultrafast relaxation of hot electron populations in Ba(Fe_{1-x}Co_x)_2As_2
I. Avigo, S. Thirupathaiah, M. Ligges +3
Using femtosecond time- and angle-resolved photoemission spectroscopy we investigate the effect of electron doping on the electron dynamics in Ba(Fe_{1-x}Co_x)_2As_2 in a range of…
Weak-coupling superconductivity in a strongly correlated iron pnictide
A. Charnukha, K. W. Post, S. Thirupathaiah +9
Iron-based superconductors have been found to exhibit an intimate interplay of orbital, spin, and lattice degrees of freedom, dramatically affecting their low-energy electronic pro…
Electron correlation effects and scattering rates in FeTeSe superconductor
S. Thirupathaiah, J. Fink, P. K. Maheswari +8
Using angle-resolved photoemission spectroscopy we have studied the low-energy electronic structure and the Fermi surface topology of FeTeSe superconductors. Si…
Interaction-induced singular Fermi surface in a high-temperature oxypnictide superconductor
A. Charnukha, S. Thirupathaiah, V. B. Zabolotnyy +5
In the family of iron-based superconductors, LaFeAsO-type materials possess the simplest electronic structure due to their pronounced two-dimensionality. And yet they host supercon…
Non-Fermi-liquid scattering rates and anomalous band dispersion in ferropnictides
J. Fink, A. Charnukha, E. D. L. Rienks +13
Angle-resolved photoemission spectroscopy (ARPES) is used to study the band dispersion and the quasiparticle scattering rates in two ferropnictides systems. Our ARPES results show…
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…
Observation of strong-coupling pairing with weakened Fermi-surface nesting at optimal hole doping in CaNaFeAs
Y. -B. Shi, Y. -B. Huang, X. -P. Wang +12
We report an angle-resolved photoemission investigation of optimally-doped CaNaFeAs. The Fermi surface topology of this compound is similar to that of the…
Why of (CaFeAs)PtAs is twice as high as (CaFePtAs)PtAs
S. Thirupathaiah, T. Stürzer, V. B. Zabolotnyy +3
Recently discovered (CaFePtAs)PtAs and (CaFeAs)PtAs superconductors are very similar materials having the same elemental composition a…
Unusual band renormalization in the simplest iron based superconductor
J. Maletz, V. B. Zabolotnyy, D. V. Evtushinsky +9
The electronic structure of the iron chalcogenide superconductor FeSe_{1-x} was investigated by high- resolution angle-resolved photoemission spectroscopy (ARPES). The results were…
A weak-coupling superconductivity in the electron doped NaFeCoAs is revealed by ARPES
S. Thirupathaiah, D. V. Evtushinsky, J. Maletz +8
We report a systematic study on the electronic structure and superconducting (SC) gaps in electron doped NaFeCoAs superconductor using angle-resolved photoemissio…
Electronic band structure and momentum dependence of the superconducting gap in (Ca, Na)Fe2As2 from angle-resolved photoemission spectroscopy
D. V. Evtushinsky, V. B. Zabolotnyy, L. Harnagea +10
Electronic structure of newly synthesized single crystals of calcium iron arsenide doped with sodium with Tc ranging from 33 to 14 K has been determined by angle-resolved photoemis…
ARPES observation of isotropic superconducting gaps in isovalent Ru-substituted Ba(FeRu)As
N. Xu, P. Richard, X. -P. Wang +13
We used high-energy resolution angle-resolved photoemission spectroscopy to extract the momentum dependence of the superconducting gap of Ru-substituted Ba(FeRu)$…
Observation of an isotropic superconducting gap at the Brillouin zone center of TlKFeSe
X. -P. Wang, P. Richard, A. van Roekeghem +10
We performed a high-resolution angle-resolved photoemission spectroscopy study on superconducting (SC) TlKFeSe ( K) in the whole Brillouin zo…
Momentum dependent ultrafast electron dynamics in antiferromagnetic EuFe2As2
L. Rettig, R. Cortes, S. Thirupathaiah +5
Employing the momentum-sensitivity of time- and angle-resolved photoemission spectroscopy we demonstrate the analysis of ultrafast single- and many-particle dynamics in antiferroma…
Electron-phonon coupling and momentum-dependent electron dynamics in EuFe2As2 using time- and angle-resolved photoemission spectroscopy
L. Rettig, R. Cortés, S. Thirupathaiah +7
The Fe pnictide parent compound EuFe2As2 exhibits a strongly momentum dependent carrier dynamics around the hole pocket at the center of the Brillouin zone. The very different dyna…
Dissimilarities between the electronic structure of chemically doped and chemically pressurized iron pnictides from an angle-resolved photoemission spectroscopy study
S. Thirupathaiah, E. D. L. Rienks, H. S. Jeevan +11
We have studied the electronic structure of EuFe2As2-xPx using high resolution angle-resolved photoemission spectroscopy. Upon substituting As with the isovalent P, which leads to…
Droplet-like Fermi surfaces in the anti-ferromagnetic phase of EuFeAs, an Fe-pnictide superconductor parent compound
S. de Jong, E. van Heumen, S. Thirupathaiah +15
Using angle resolved photoemission it is shown that the low lying electronic states of the iron pnictide parent compound EuFeAs are strongly modified in the magnetically or…
Orbital character variation of the Fermi surface and doping dependent changes of the dimensionality in BaFe2-xCoxAs2 from angle-resolved photoemission spectroscopy
S. Thirupathaiah, S. de Jong, R. Ovsyannikov +12
From a combination of high resolution angle-resolved photoemission spectroscopy and density functional calculations, we show that BaFe2As2 possesses essentially two-dimensional ele…