CoTe2: A Quantum Critical Dirac Metal with Strong Spin Fluctuations
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202300640
Abstract: Quantum critical points separating weak ferromagnetic and paramagnetic phases trigger many novel phenomena. Dynamical spin fluctuations not only suppress the long‐range order, but can also lead to unusual transport and even superconductivity. Combining quantum criticality… read more here.
Keywords: dirac metal; spin fluctuations; cote2 quantum; dirac ... See more keywords
The X-ray magnetic dichroism, the sum rule and spin fluctuations on the surface of manganite (LaPrCa)MnO 3
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2016.12.060
Abstract: Abstract The problem of determining the magnitude of the atomic magnetic moments in compounds with rare-earth and transition elements using the X-ray magnetic circular dichroism (XMCD) is investigated. The standard sum rules approach usually gives… read more here.
Keywords: sum; dichroism; magnetic moments; ray magnetic ... See more keywords
Imaging the real space structure of the spin fluctuations in an iron-based superconductor
Sign Up to like & getrecommendations! Published in 2017 at "Nature Communications"
DOI: 10.1038/ncomms15996
Abstract: Spin fluctuations are a leading candidate for the pairing mechanism in high temperature superconductors, supported by the common appearance of a distinct resonance in the spin susceptibility across the cuprates, iron-based superconductors and many heavy… read more here.
Keywords: spin fluctuations; iron based; space structure; real space ... See more keywords
Anisotropic spin fluctuations in detwinned FeSe
Sign Up to like & getrecommendations! Published in 2019 at "Nature Materials"
DOI: 10.1038/s41563-019-0369-5
Abstract: Superconductivity in FeSe emerges from a nematic phase that breaks four-fold rotational symmetry in the iron plane. This phase may arise from orbital ordering, spin fluctuations or hidden magnetic quadrupolar order. Here we use inelastic… read more here.
Keywords: detwinned fese; phase; spin fluctuations; fluctuations detwinned ... See more keywords
Resonance from antiferromagnetic spin fluctuations for superconductivity in UTe2
Sign Up to like & getrecommendations! Published in 2021 at "Nature"
DOI: 10.1038/s41586-021-04151-5
Abstract: X iv :2 10 6. 14 42 4v 2 [ co nd -m at .s up rco n] 2 2 D ec 2 02 1 Resonance from antiferromagnetic spin fluctuations for superconductivity in UTe2 Chunruo… read more here.
Keywords: spin fluctuations; antiferromagnetic spin; fluctuations superconductivity; physics ... See more keywords
Cooper Pairing in A Doped 2D Antiferromagnet with Spin-Orbit Coupling
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-19038-7
Abstract: We study the two-dimensional Hubbard model with the Rashba type spin-orbit coupling within and beyond the mean-field theory. The antiferromagnetic ground state for the model at half-filling and the Cooper pairing induced by antiferromagnetic spin… read more here.
Keywords: spin orbit; cooper pairing; spin fluctuations; orbit coupling ... See more keywords
X-ray scattering from light-driven spin fluctuations in a doped Mott insulator
Sign Up to like & getrecommendations! Published in 2021 at "Communications Physics"
DOI: 10.1038/s42005-021-00715-z
Abstract: Manipulating spin fluctuations with ultrafast laser pulses is a promising route to dynamically control collective phenomena in strongly correlated materials. However, understanding how photoexcited spin degrees of freedom evolve at a microscopic level requires a… read more here.
Keywords: mott; spin fluctuations; light driven; ray scattering ... See more keywords
First-principle based simulations of longitudinal spin-fluctuations in metals and integration in classical space with variable spin amplitude
Sign Up to like & getrecommendations! Published in 2018 at "AIP Advances"
DOI: 10.1063/1.5042085
Abstract: The use of the classical Heisenberg model which incorporates only transverse spin degrees of freedom has only limited success for description of the metallic magnetism at finite temperature, since temperature and magnetic disorder induced longitudinal… read more here.
Keywords: first principle; temperature; integration; longitudinal spin ... See more keywords
Phonons in magnetically disordered materials: Magnetic versus phononic time scales
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.094201
Abstract: The lattice dynamics in magnetic materials, such as Fe depends on the degree of disorder of the atomic magnetic moments and the time scale of spin fluctuations. Using first-principles methods, we have studied this effect… read more here.
Keywords: ensuremath phi; ensuremath; time; mathbf ensuremath ... See more keywords
Distinct nature of orbital-selective Mott phases dominated by low-energy local spin fluctuations
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.235119
Abstract: Quantum orbital selective Mott (OSM) transitions are investigated within dynamical mean-field theory based on a two-orbital Hubbard model with different bandwidth at half filling. We find two distinct OSM phases both showing coexistence of itinerant… read more here.
Keywords: spin fluctuations; spin; selective mott; orbital selective ... See more keywords
Neutron Spin Resonance in the Heavily Hole-Doped KFe_{2}As_{2} Superconductor.
Sign Up to like & getrecommendations! Published in 2020 at "Physical review letters"
DOI: 10.1103/physrevlett.124.017001
Abstract: We report high-resolution neutron scattering measurements of the low energy spin fluctuations of KFe_{2}As_{2}, the end member of the hole-doped Ba_{1-x}K_{x}Fe_{2}As_{2} family with only hole pockets, above and below its superconducting transition temperature T_{c} (∼3.5 K).… read more here.
Keywords: spin fluctuations; hole doped; hole; spin ... See more keywords