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Strong Competition of Superconducting and Magnetic Order Parameters in Ba1-xNaxFe2As2
Hemke Maeter, Gwendolyne Pascua, Hubertus Luetkens +11
We study the interplay of magnetic and superconducting order in single crystalline hole doped Ba1-xNaxFe2As2 using muon spin relaxation. We find microscopic coexistence of magnetic…
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…
Spin excitations in layered antiferromagnetic metals and superconductors
W. Rowe, J. Knolle, I. Eremin +1
The proximity of antiferromagnetic order in high-temperature superconducting materials is considered a possible clue to the electronic excitations which form superconducting pairs.…
Theory of nonequilibrium dynamics of multiband superconductors
Alireza Akbari, Andreas P. Schnyder, Dirk Manske +1
We study the nonequilibrium dynamics of multiband BCS superconductors subjected to ultrashort pump pulses. Using density-matrix theory, the time evolution of the Bogoliubov quasipa…
Dual Features of Magnetic Susceptibility in Superconducting Cuprates: a comparison to inelastic neutron scattering
M. V. Eremin, I. M. Shigapov, I. M. Eremin
Starting from the generalized t-J-G model Hamiltonian, we analyze the spin response in the superconducting cuprates taking into account both local and itinerant spin components whi…