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Pseudogap Behavior of the Nuclear Spin-lattice Relaxation Rate in FeSe Probed by Se-NMR
Anlu Shi, Takeshi Arai, Shunsaku Kitagawa +7
We conducted Se-nuclear magnetic resonance studies of the iron-based superconductor FeSe in magnetic fields of 0.6 to 19 T to investigate the superconducting and normal-stat…
On the phonon dispersion relation of single-crystalline --FeSe
Khalil Zakeri, Tobias Engelhardt, Thomas Wolf +1
We report on the phonon spectrum probed at the --FeSe(001) surface by means of high-resolution electron energy-loss spectroscopy (HREELS). Single crystals of --FeSe are cleav…
Evidence for short-range magnetic order in the nematic phase of FeSe from anisotropic in-plane magnetostriction and susceptibility measurements
Mingquan He, Liran Wang, Frédéric Hardy +4
The nature of the nematic state in FeSe remains one of the major unsolved mysteries in Fe- based superconductors. Both spin and orbital physics have been invoked to explain the ori…
Possible coexistence of double-Q magnetic order and chequerboard charge order in the re-entrant tetragonal phase of Ba0.76K0.24Fe2As2
Jianqiang Hou, Chang-woo Cho, Junying Shen +6
We investigate the re-entrant tetragonal phase in the iron-based superconductor Ba0 .76K0.24Fe2As2 by DC magnetization and thermoelectrical measurements. The reversible magnetizati…
Microscopic pairing fingerprint of the iron-based superconductor
Thomas Böhm, Florian Kretzschmar, Andreas Baum +16
Resolving the microscopic pairing mechanism and its experimental identification in unconventional superconductors is among the most vexing problems of contemporary condensed matter…