Incommensurate spin density wave
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. WebIncommensurate spin-density wave and magnetic lock-in transition inCaFe4As3
Incommensurate spin density wave
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WebOct 27, 2024 · Download PDF Abstract: Although the magnetic order is suppressed by a strong magnetic frustration, it is maintained but appears in complex order forms such as a cycloid or spin density wave in weakly frustrated systems. Herein, we report a weakly magnetic-frustrated two-dimensional van der Waals material CrPSe$_3$. Polycrystalline … WebFeb 17, 2006 · Recent ab initio calculations have shown that the theory of the spin density wave (SDW) based on the nesting property of the chromium Fermi surface is not able to explain solely the stability of the incommensurate SDW. Using the model Hamiltonian approach, we develop a method which allows self-consistent calculation of SDWs with …
WebJan 21, 2024 · Spin density waves are a spatial modulation of the spin, and can be either commensurate or incommensurate with the crystal lattice. Here, Hu et al. use spin-polarised scanning tunnelling ... We would like to show you a description here but the site won’t allow us. WebThis article is published in Physical Review B.The article was published on 2005-01-12. It has received 7 citation(s) till now. The article focuses on the topic(s): Chromium & Transition metal.
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. Here via spin-polarized scanning tunneling microscopy, we directly observed long-range … WebMay 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 …
WebFeb 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 = …
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 ∼ … slu affidavit of supportWebFeb 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 , … sl\u0027s hat manufactoryWebFeb 11, 2013 · Spin states with long-range incommensurate magnetic order may be stabilized by itinerant electrons through two distinct mechanisms. If the Fermi surface … slu 3.1 e facility lobbyWebAn 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 … slu 2019 freshman class gpaSpin-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… soil organic poolsWebMar 27, 2024 · Introduction. Incommensurate spin-density wave (ISDW) phases have long been known to be generated from paramagnetic (PM) metals either through a Fermi … soil organisms that need oxygen are calledWebWe 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) … slu7 and cancer