614 citations · 3.8k across the 110 of their papers we have counts for
6 papers · 1 filter
Crystal growth and annealing study of fragile, non-bulk superconductivity in YFeGe
H. Kim, S. Ran, E. D. Mun +5
We investigated the occurrence and nature of superconductivity in single crystals of YFeGe grown out of Sn flux by employing x-ray diffraction, electrical resistivity, and…
Fermi surface reconstruction in (BaK)FeAs (0.44 1) probed by thermoelectric power measurements
Halyna Hodovanets, Yong Liu, Anton Jesche +5
We report in-plane thermoelectric power measurements on single crystals of (BaK)FeAs (0.44 1). We observe a minimum in the S versus x…
Combined effects of transition metal (Ni and Rh) substitution and annealing/quenching on physical properties of CaFeAs
Sheng Ran, Sergey L. Bud'ko, Warren E. Straszheim +1
We performed systematic studies of the combined effects of annealing/quenching temperature ({\itshape T}) and T = Ni, Rh substitution ({\itshape x}) on the physical propert…
Ultrafast observation of critical nematic fluctuations and giant magnetoelastic coupling in iron pnictides
Aaron Patz, Tianqi Li, Sheng Ran +6
Many of the iron pnictides have strongly anisotropic normal-state characteristics, important for the exotic magnetic and superconducting behavior these materials exhibit. Yet, the…
The suppression of electron correlations in the collapsed tetragonal phase of CaFe2As2 under ambient pressure demonstrated by 75As NMR-NQR measurements
Y. Furukawa, B. Roy, S. Ran +2
The static and the dynamic spin correlations in the low temperature collapsed tetragonal and the high temperature tetragonal phase in CaFe2As2 have been investigated by 75As nuclea…
Dramatic Changes in the Electronic Structure Upon Transition to the Collapsed Tetragonal Phase in CaFe2As2
R. S. Dhaka, Rui Jiang, S. Ran +7
We use angle-resolved photoemission spectroscopy (ARPES) and density functional theory (DFT) calculations to study the electronic structure of CaFeAs in previously unexplor…