64 citations · 243 across the 13 of their papers we have counts for
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Local nematic susceptibility in stressed BaFeAs from NMR electric field gradient measurements
T. Kissikov, R. Sarkar, M. Lawson +10
The electric field gradient (EFG) tensor at the As site couples to the orbital occupations of the As p-orbitals and is a sensitive probe of local nematicity in BaFeAs$_2…
Nuclear Magnetic Resonance Probe Head Design for Precision Strain Control
T. Kissikov, R. Sarkar, B. T. Bush +3
We present the design and construction of an NMR probe to investigate single crystals under strain at cryogenic temperatures. The probe head incorporates a piezoelectric-based appa…
Superconductivity with broken time reversal symmetry in ion irradiated BaKFeAs single crystals
V. Grinenko, P. Materne, R. Sarkar +7
Over the last years a lot of theoretical and experimental efforts have been made to find states with broken time reversal symmetry (BTRS) in multi-band superconductors. In particul…
Uniaxial strain control of spin-polarization in multicomponent nematic order of BaFeAs
T. Kissikov, R. Sarkar, M. Lawson +8
The iron-based high temperature superconductors exhibit a rich phase diagram reflecting a complex interplay between spin, lattice, and orbital degrees of freedom [1-4]. The nematic…
Magnetic order and spin dynamics across a ferromagnetic quantum critical point: SR investigations of YbNi(PAs)
R. Sarkar, J. Spehling, P. Materne +5
In the quasi-1D heavy-fermion system YbNi(PAs) the presence of a ferromagnetic (FM) quantum critical point (QCP) at with unconventional quan…