Incommensurate spin density wave
WebJan 21, 2024 · Here, we report transverse incommensurate spin density waves (SDWs) for the Mn atoms with a propagating direction along the chain axes as a ground state for KMn6Bi5 by single crystal neutron ... WebDec 18, 2024 · The incommensurate magnetic structure (0.47, 0, 0.49) of NaYNiWO6 exhibits unconventional spin-density waves (SDWs) along the [100] direction, in which up and down spins alternate in each half-wave.
Incommensurate spin density wave
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WebNov 21, 2024 · 该工作以“Real-space observation of incommensurate spin density wave and coexisting charge density wave on Cr (001) surface ... 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.
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 … WebWe observed a complete suppression of the incommensurate spin-density wave in thin Cr layers of a V/Cr multilayer in a temperature range from 550 K down to 2 K. The (110)-oriented V/Cr multilayer consisting of 30 nm thick Cr layers and 5 nm thick V layers was investigated by neutron and X-ray diffraction (XRD). From the XRD experiments we were …
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.
WebFeb 18, 2016 · The inverse of the spin-density and superconductivity correlation functions normalized to their value at ω 0 = 0.1 is shown in Fig. 2 for various values of α. The incommensurate and commensurate spin-density waves (Figs. 2(a) and 2(b)) are driven by the vertices v and p a, respectively.
WebApr 11, 2024 · Here we explore a series of metallic charge- and spin-density-wave systems that exhibit extremely large positive linear MR. By contrast to other linear MR mechanisms, this effect remains robust down to miniscule magnetic fields of tens of Oersted at low temperature. ... All of the SDW and CDW ordering wave vectors are incommensurate: Q ∼ … slowflowers buchSpin-density wave (SDW) and charge-density wave (CDW) are names for two similar low-energy ordered states of solids. Both these states occur at low temperature in anisotropic, low-dimensional materials or in metals that have high densities of states at the Fermi level . Other low-temperature ground states that occur in such materials are superconductivity, ferromagnetism and antiferr… software for motorola moto gWebApr 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 … software for monitoring internet usageWebFeb 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 = … software for money exchange businessWebAbsence 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.; ... software for mobile detailing businessWebJul 12, 2012 · Figure 3 shows that neither charge order nor low-energy incommensurate charge fluctuations are present in this doping range. For p > 0.08, the spin correlations remain centered at wave vectors similar to those at lower p, which bear no simple relation to the wave vector of the REXS peaks determined here (11–14). slowflowers.comWebFeb 29, 2016 · The data reveal the presence of a longitudinal incommensurate spin-density wave (SDW) in the temperature range of TC software for monitoring student computers