Long-lived spin waves in a metallic antiferromagnet
G Poelchen, J Hellwig, M Peters, DY Usachov… - Nature …, 2023 - nature.com
Collective spin excitations in magnetically ordered crystals, called magnons or spin waves,
can serve as carriers in novel spintronic devices with ultralow energy consumption. The …
can serve as carriers in novel spintronic devices with ultralow energy consumption. The …
Evolution of spin excitations from bulk to monolayer FeSe
In ultrathin films of FeSe grown on SrTiO3 (FeSe/STO), the superconducting transition
temperature T c is increased by almost an order of magnitude, raising questions on the …
temperature T c is increased by almost an order of magnitude, raising questions on the …
Spin-excitation anisotropy in the nematic state of detwinned FeSe
The origin of the electronic nematicity in FeSe is one of the most important unresolved
puzzles in the study of iron-based superconductors. In both spin-and orbital-nematic models …
puzzles in the study of iron-based superconductors. In both spin-and orbital-nematic models …
Nematic Spin Correlations Pervading the Phase Diagram of
We use resonant inelastic x-ray scattering (RIXS) at the Fe-L 3 edge to study the spin
excitations of uniaxial-strained and unstrained FeSe 1-x S x (0≤ x≤ 0.21) samples. The …
excitations of uniaxial-strained and unstrained FeSe 1-x S x (0≤ x≤ 0.21) samples. The …
Description of resonant inelastic x-ray scattering in correlated metals
To fully capitalize on the potential and versatility of resonant inelastic x-ray scattering (RIXS),
it is essential to develop the capability to interpret different RIXS contributions through …
it is essential to develop the capability to interpret different RIXS contributions through …
Mapping the unoccupied state dispersions in with resonant inelastic x-ray scattering
The transition metal chalcogenide Ta 2 NiSe 5 undergoes a second-order phase transition
at T c= 328 K involving a small lattice distortion. Below T c, a band gap at the center of its …
at T c= 328 K involving a small lattice distortion. Below T c, a band gap at the center of its …
Lattice-shifted nematic quantum critical point in FeSe1−xSx
S Chibani, D Farina, P Massat, M Cazayous… - npj Quantum …, 2021 - nature.com
We report the evolution of nematic fluctuations in FeSe1− x S x single crystals as a function
of Sulfur content x across the nematic quantum critical point (QCP) xc~ 0.17 via Raman …
of Sulfur content x across the nematic quantum critical point (QCP) xc~ 0.17 via Raman …
Negative -axis longitudinal magnetoresistance in FeSe
Below the structural transition occurring at T s= 90 K, FeSe exhibits positive transverse
magnetoresistance when the current is applied parallel to the ab plane. In this study, we …
magnetoresistance when the current is applied parallel to the ab plane. In this study, we …
Reciprocity between local moments and collective magnetic excitations in the phase diagram of BaFe2(As1−xPx)2
Unconventional superconductivity arises at the border between the strong coupling regime
with local magnetic moments and the weak coupling regime with itinerant electrons, and …
with local magnetic moments and the weak coupling regime with itinerant electrons, and …
Dispersionless orbital excitations in (Li, Fe) OHFeSe superconductors
The superconducting critical temperature T c of intercalated iron-selenide superconductor
(Li, Fe) OHFeSe (FeSe11111) can be increased to 42 from 8 K of bulk FeSe. It shows …
(Li, Fe) OHFeSe (FeSe11111) can be increased to 42 from 8 K of bulk FeSe. It shows …