116 citations · 816 across the 39 of their papers we have counts for
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3D visualizations of nano-scale phase separation and ultrafast dynamic correlation between phases in (Na0.32K0.68)0.95Fe1.75Se2
P. C. Cheng, W. Y. Tzeng, Y. J. Chu +10
Phase separation of metallic and antiferromagnetic (AFM) insulating phases in alkaline iron selenides (AxFe2-ySe2) continues to attract intense interest because the relationship be…
Evidence of hot and cold spots on the Fermi surface of LiFeAs
J. Fink, J. Nayak, E. D. L. Rienks +10
Angle-resolved photoemission spectroscopy (ARPES) is used to study the energy and momentum dependence of the inelastic scattering rates and the mass renormalization of charge carri…
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…
The three-dimensional electronic structure of the nematic and antiferromagnetic phases of NaFeAs from detwinned ARPES measurements
Matthew D. Watson, Saicharan Aswartham, Luke C. Rhodes +6
We report a comprehensive ARPES study of NaFeAs, a prototypical parent compound of the Fe-based superconductors. By mechanically detwinning the samples, we show that in the nematic…
Combined resistivity and Hall effect study on NaFeRhAs single crystals
Frank Steckel, Robert Beck, Maria Roslova +5
Electrical transport measurements are used to study the Rh-doped NaFeAs superconductor series with a focus on the tetragonal phase. The resistivity curvature has an anomalous tempe…
Crystal growth and the electronic phase diagram of the 4 doped NaFeRhAs in comparison with 3 doped NaFeCoAs
Frank Steckel, Maria Roslova, Robert Beck +13
Single crystals of NaFeTAs with T = Co, Rh have been grown using a self-flux technique. The crystals were thoroughly characterized by powder X-ray diffraction,…
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…
Anomalous High-Energy Electronic Interaction in Iron-Based Superconductor
D. V. Evtushinsky, A. N. Yaresko, V. B. Zabolotnyy +11
Strong electron interactions in solids increase effective mass, and shrink the electronic bands [1]. One of the most unique and robust experimental facts about iron-based supercond…
Direct observation of spin-orbit coupling in iron-based superconductors
Sergey Borisenko, Danil Evtushinsky, Igor Morozov +7
Spin-orbit coupling (SOC) is a fundamental interaction in solids which can induce a broad spectrum of unusual physical properties from topologically non-trivial insulating states t…
Crystal growth, transport phenomena and two gap superconductivity in the mixed alkali metal iron selenide
Maria Roslova, Svetoslav Kuzmichev, Tatiana Kuzmicheva +7
Using the self-flux technique we grew superconducting (z = 0.3) single crystals. The EDX mapping revealed the uniform elements distribution on the c…
Superconducting specific heat jump for KNaFeAs
V. Grinenko, D. V. Efremov, S. -L. Drechsler +9
We present a systematic study of the electronic specific heat jump () at the superconducting transition temperature of KNaFeAs. Both an…
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…
Incommensurate magnetic fluctuations and Fermi surface topology in LiFeAs
J. Knolle, V. B. Zabolotnyy, I. Eremin +12
Using the angle-resolved photoemission spectroscopy (ARPES) data accumulated over the whole Brillouin zone (BZ) in LiFeAs we analyze the itinerant component of the dynamic spin sus…
A 57Fe Mössbauer Study Of Local Structure And Spin Arrangements In Antiferromagnetic NaFeAs
Igor Presniakov, Igor Morozov, Alexey Sobolev +5
Detailed 57Fe Mössbauer spectroscopy measurements on superconducting NaFeAs powder crystals have been performed. The 57Fe spectra recorded in the paramagnetic temperature range (T…
One-sign order parameter in iron based superconductor
S. V. Borisenko, V. B. Zabolotnyy, A. A. Kordyuk +5
The onset of superconductivity at the transition temperature is marked by the onset of order, which is characterized by an energy gap. Most models of the iron-based superconductors…
Uniform Patterns of Fe Vacancy Ordering in the Kx(Fe,Co)2-ySe2 Superconductors
Sergey M. Kazakov, Artem M. Abakumov, Santiago González +7
The Fe-vacancy ordering patterns in the superconducting KxFe2-ySe2 and non-superconducting Kx(Fe,Co)2-ySe2 samples have been investigated by electron diffraction and high angle ann…
Comment on "A de Haas-van Alphen study of the Fermi surfaces of superconducting LiFeP and LiFeAs"
S. V. Borisenko, V. B. Zabolotnyy, D. V. Evtushinsky +4
In a recent preprint Putzke et al. argued that their dHvA data on LiFeAs are in good agreement with DFT calculations and contradict our ARPES results. Here we show that the situati…
The superconducting gaps in LiFeAs: Joint study of specific heat and ARPES
U. Stockert, M. Abdel-Hafiez, D. V. Evtushinsky +7
We present specific heat, c_P, and ARPES data on single crystals of the stoichiometric superconductor LiFeAs. A pronounced anomaly is found in c_P at the superconducting transition…
Resistivity and Hall effect of LiFeAs: Evidence for electron-electron scattering
O. Heyer, T. Lorenz, V. B. Zabolotnyy +7
LiFeAs is unique among the broad family of FeAs-based superconductors, because it is superconducting with a rather large K under ambient conditions although it is a…
Time of life as it is in LiFeAs
A. A. Kordyuk, V. B. Zabolotnyy, D. V. Evtushinsky +7
The time of life of fermionic quasiparticles, the distribution of which in the momentum-energy space can be measured by angle resolved photoemission (ARPES), is the first quantity…