303 citations · 692 across the 18 of their papers we have counts for
16 papers
Elastoresistivity of heavily hole doped 122 iron pnictides superconductors
Xiaochen Hong, Steffen Sykora, Federico Caglieris +8
Nematicity in the heavily hole-doped iron pnictide superconductors remains controversial. Sizeable nematic fluctuations and even nematic orders far from a magnetic instability were…
Absence of nematic instability in LiFeAs
Michael Wissmann, Federico Caglieris, Xiaochen Hong +5
The relationship between unconventional superconductivity, antiferromagnetism and nematic order in iron-based superconductors (FeSCs) is still highly debated. In many FeSCs superco…
Linkage between scattering rates and superconductivity in doped ferropnictides
J. Fink, E. D. L. Rienks, M. Yao +13
We report an angle-resolved photoemission study of a series of hole and electron doped iron-based superconductors, their parent compound BaFe2As2, and their cousins BaCr2As2 and Ba…
Superconductivity-induced nematicity
Y. S. Kushnirenko, D. V. Evtushinsky, T. K. Kim +6
The role of nematic order for the mechanism of high-temperature superconductivity is highly debated. In most iron-based superconductors (IBS) the tetragonal symmetry is broken alre…
Emerging superconductivity with broken time reversal symmetry inside a superconducting -wave state
V. Grinenko, R. Sarkar, K. Kihou +17
In general, magnetism and superconductivity are antagonistic to each other. However, there are several families of superconductors, in which superconductivity may coexist with magn…
Massive Dirac fermions in layered BaZnBi
S. Thirupathaiah, D. Efremov, Y. Kushnirenko +7
Using angle-resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) we study the electronic structure of layered BaZnBi. Our experimental results show n…
Mass enhancements and band shifts in strongly hole overdoped Fe-based pnictide superconductors: KFeAs and CsFeAs
S. -L. Drechsler, H. Rosner, V. Grinenko +11
The interplay of high and low-energy mass renormalizations with band-shifts reflected by the positions of van Hove singularities (VHS) in the normal state spectra of the highest ho…
Surface superconductivity in the Weyl semimetal MoTe2 detected by point contact spectroscopy
Yu. G. Naidyuk, O. E. Kvitnitskaya, D. L. Bashlakov +9
MoTe2 is a Weyl semimetal, which exhibits unique non-saturating magnetoresistance and strongly reinforced superconductivity under pressure. Here, we demonstrate that a novel mesosc…
Selective mass enhancement close to the quantum critical point in BaFe(AsP)
V. Grinenko, K. Iida, F. Kurth +16
A quantum critical point (QCP) is currently being conjectured for the BaFe(AsP) system at the critical value 0.3. In the proximity of a QCP,…
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…
Superconducting properties of KNaFeAs under pressure
V. Grinenko, W. Schottenhamel, A. U. B. Wolter +18
The effect of hydrostatic pressure and partial Na substitution on the normal-state properties and the superconducting transition temperature () of KNaFeAs…
Evidence of d-wave Superconductivity in K_(1-x)Na_xFe_2As_2 (x = 0, 0.1) Single Crystals from Low-Temperature Specific Heat Measurements
M. Abdel-Hafiez, V. Grinenko, S. Aswartham +20
From the measurement and analysis of the specific heat of high-quality K_(1-x)Na_xFe_2As_2 single crystals we establish the presence of large T^2 contributions with coefficients al…
Local Structure and Hyperfine Interactions of 57Fe in NaFeAs Studied by Mossbauer Spectroscopy
Igor Presniakov, Igor Morozov, Alexey Sobolev +7
Detailed 57Fe Mossbauer spectroscopy measurements on superconducting NaFeAs powder samples have been performed in the temperature range 13 K < T < 300 K. The 57Fe spectra recorded…
Investigation of LiFeAs by means of "Break-junction" Technique
S. A. Kuzmichev, T. E. Shanygina, I. V. Morozov +4
In our tunneling investigation using Andreev superconductor - normal metal - superconductor contacts on LiFeAs single crystals we observed two reproducible independent subharmonic…
Weak superconducting pairing and a single isotropic energy gap in stoichiometric LiFeAs
D. S. Inosov, J. S. White, D. V. Evtushinsky +15
We report superconducting (SC) properties of stoichiometric LiFeAs (Tc = 17 K) studied by small-angle neutron scattering (SANS) and angle-resolved photoemission (ARPES). Although t…
Superconductivity without magnetism in LiFeAs
S. V. Borisenko, V. B. Zabolotnyy, D. V. Evtushinsky +8
The particular shape of the Fermi surface can give rise to a number of collective quantum phenomena in solids, such as density wave orderings or even superconductivity. In many new…