Incommensurate spin density wave
WebJul 1, 2024 · In itinerant magnetic systems, a spin density wave (SDW) state can be induced by Fermi surface nesting and electron-electron interaction. It may intertwine with other orders such as charge density wave (CDW), while their relation is still yet to be understood. WebOct 1, 2024 · A neutron powder diffraction experiment reveals that HoAl2Ge2 exhibits an incommensurate spin density wave (SDW) with a propagation vector k=(0.23,0,0.06). The special arrangement of magnetic moments in HoAl2Ge2 induces interesting physical phenomena and large magnetocaloric effects.
Incommensurate spin density wave
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WebApr 19, 2010 · The spectral shapes in the so-called spin density wave (SDW) phase are interpreted in terms of incommensurate modulation of the magnetic structure, and allow the shape of the modulation to be determined. In undoped BaFe 2 As 2, the magnetic structure is commensurate, and we find that incommensurability is present at the lowest doping … WebUltra-small-moment incommensurate spin density wave order masking a ferromagnetic quantum critical point in NbFe 2 ... spin density wave (SDW) order [8, 9]. Whereas there are many examples for the rst scenario, including ZrZn 2 [2], Ni 3Al [3] and UGe 2 [4], the transition into a modulated
WebApr 14, 2024 · Charge and spin density waves are typical symmetry broken states of quasi one-dimensional electronic systems. They demonstrate such common features of all incommensurate electronic crystals as a spectacular non-linear conduction by means of the collective sliding and susceptibility to the electric field. These phenomena ultimately … Webone electron-like and the other hole-like, separated by a wave vector Q. A strong repulsive interac-tion between electrons gives rise to heavy fermion bands H 0 = kσ ϵ 1(k) c † 1kσ c 1kσ+ ϵ 2(k) c † 2kσ c 2kσ , (1) where k is measured from the center of each pocket, and assumed to be small compared to the nesting vector Q.
WebA model of the magnetic structure is proposed for both temperature regimes, based on Rietveld refinements of the powder data and symmetry considerations. The structures correspond to longitudinal spin-density waves with magnetic moments directed along the b … WebJul 1, 2024 · In itinerant magnetic systems, a spin density wave (SDW) state can be induced by Fermi surface nesting and electron-electron interaction. It may intertwine with other orders such as charge density wave (CDW), while their relation is still yet to be understood.
WebSep 9, 2011 · Incommensurate Spin-Density Wave in Two-Dimensional Hubbard Model September 2011 Diffusion and Defect Data Pt.B: Solid State Phenomena DOI: 10.4028/www.scientific.net/SSP.190.67 Source arXiv...
WebJan 21, 2024 · Real-space observation of incommensurate spin density wave and coexisting charge density wave on Cr (001) surface Real-space observation of incommensurate spin density wave and coexisting charge density wave on Cr (001) surface Nat Commun. 2024 Jan 21;13 (1):445. doi: 10.1038/s41467-022-28104-2. Authors shark pants toddlerWebMay 1, 2010 · @article{osti_982678, title = {Incommensurate spin-density wave and magnetic lock-in transition in CaFe{sub 4}As{sub 3}.}, author = {Manuel, P and Chapon, L C and Todorov, I S and Chung, D Y and Castellan, J -P and Rosenkranz, S and Osborn, R and Toledano, P and Kanatzidis, M G and Materials Science Division and Rutherford Appleton … shark pantsWebFeb 29, 2016 · The data reveal the presence of a longitudinal incommensurate spin-density wave (SDW) in the temperature range of T C < T < T N. The propagation vector q ∼ ( 0 , 0 , 0.148 ) is nearly temperature independent in this region and discontinuously locks into q = … shark pants for menWebAn account is given of the main steps that led the research group in Rome, to which the author belongs, to the formulation of the charge-density-wave scenario for high- T c superconducting cuprates. The early finding of the generic tendency of strongly correlated electron systems with short range interactions to undergo electron phase separation was … shark paperweightWebThe spin-density-wave (SDW) state in thin chromium films is well known to be strongly affected by proximity effects from neighboring layers. To date the main attention has been given to effects arising from exchange interactions at interfaces. In the present work we report on combined neutron and synchrotron scattering studies of proximity effects in … popular now on bingffvWebFor a sample with x~9(1)%, we also find an incommensurate spin-density wave that competes with the bicollinear commensurate ordering close to the N\'eel point. The shifting of spectral weight ... shark paper craftWebAbsence of precursor incommensurate charge order in electronic nematic Ba 0.35 Sr 0.65 Ni 2 As 2 . Collini, John; Lee, Sangjun; Sun, Stella X.-L.; ... popular now on bingfghhh