Electron-magnon interaction

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August undefined, 2024

WebApr 7, 2024 · Their scheme causes photons in a microwave cavity to interact with electron spins in a magnetic material. In the presence of a magnetic field, these spins and photons together create hybrid excitations called magnon polaritons, which in turn generate coherent microwaves. The technique produces this coherent radiation using a concept different ... WebApr 9, 2024 · In magnetic materials, quasi-particles called magnons direct the electron spin within the material. There are two types of magnons - optical and acoustic - which refer to the direction of their spin. ... The researchers accomplished this by adding an organic cation to the material, which created a particular interaction called the DMI. In short ...

Nonlocal correlation effects due to virtual spin-flip processes in ...

WebJun 15, 2024 · The source of it is expected to be magnon-electron interactions. Namely, we assume that the external voltage is applied to the “active” layer stimulating electric current through this layer. In its turn, the scattering of the current-carrying electrons by magnons leads to a magnon drag current within this layer. The 3-magnons interactions ... WebThe self-energy of an electron in a ferromagnetic transition metal due to the virtual emission and absorption of magnons has been calculated. It was found that the mass correction … checkin assessment cese

Electron-magnon interaction in magnetic semiconductors

http://www.sme.buaa.edu.cn/info/1026/4721.htm WebNov 1, 2008 · Combining the two techniques, it is possible to clarify the role of electron-phonon and electron-magnon interactions on the ultrafast magnetization dynamics. WebDec 1, 1984 · Nevertheless the electron-magnon interaction is quasielastic i.e. the energy transferred from the electron to the magnons during the scattering event is much smaller than the electron energy. If a sufficiently strong electric field is applied to the semiconductor, the electrons are heated up and the electron temperature may considerably exceed ... check in asl

Theory of scattering of crystal electrons at magnons

Double-ionization mechanisms of magnesium driven by electron …

WebOct 12, 2016 · In this paper, we consider a model of the heterostructure in which a three-dimensional magnon gas is coupled with a two-dimensional massless Dirac electron system at the interface. We calculate the torque induced by an electric field, which can be interpreted as a magnon spin current, upto the lowest order of the electron-magnon … WebMar 1, 2024 · Abstract. The information technology revolution demands bigger and faster magnetic storage devices. The funded research focuses on a new frontier - Laser-induced ultrafast all-optical spin switching (AOS), where a single laser pulse can switch spins from one direction to another permanently, without a magnetic field, on a time scale of 1-10 … flash picklingWebDec 1, 1984 · In this case electrons interact mainly with magnons with energy htwq of the order of kT *. Nevertheless the electron-magnon interaction is quasielastic i.e. the … flash picto

"Webfrom the magnon peaks in Case B in agreement with the RIXS experiment. Since the bound states of excitons are composed mainly of the jeﬀ = 1/2 states of electron and jeﬀ = 3/2 states of hole, the larger value of ζSO in Case B may lead to the larger separation between the exciton and magnon peaks. In the localized electron picture, the " - Electron-magnon interaction

Electron-magnon interaction

Laser-Induced Ultrafast Demagnetization and Spin Switching (Final ...

WebThe interfacial electron-magnon interaction strength can be quite large, and hence important for the thin film materials, as the recent work on superconductivity induced in a metal due to ... WebNov 2, 2024 · Strong electron–magnon interactions in Ba 1−x K x Mn 2 As 2 The α band shows a kink around the binding energy E B = 50 meV, as shown by the photoemission image and MDCs [Fig. 2 a–c, and ...

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WebNov 20, 2024 · The advantage of such systems is that the properties of the electrons, the magnons, and the electron–magnon interaction can be engineered by selecting different materials with desired bulk and interface characteristics. In this way, the magnons and the electrons can be independently tuned. This opens a new door towards exploring ... WebMagnon scattering platform and coherent sensing with a single spin magnetometer. (A) Sketch of the magnon-based scattering platform, comprising a microwave stripline as a source, a single NV on a scanned tip as a detector, 100-nm-thick YIG as the “vacuum” supporting long-lived propagating magnons, and a disk-shaped target.The single NV …

WebFinite temperature magnetization behavior of an itinerant ferromagnet is investigated in terms of electron-magnon interaction induced thermal evolution of electronic spectral weight transfer across the Fermi level. This mechanism distinguises our WebDec 21, 2024 · 北航集成电路学院在磁子-声子耦合领域取得重要进展. 2024年11月14日，《自然·通讯》（Nature Communications）期刊在线发表了北京航空航天大学集成电路与工程学院于海明教授课题组的最新科研进展《Long decay length of magnon-polarons in BiFeO 3 /La 0.67 Sr 0.33 MnO 3 heterostructures ...

WebApr 10, 2024 · We present an ab initio method for electronic structure calculations, which accounts for the interaction of electrons and magnons in ferromagnets. While it is based on a many-body perturbation theory we approximate numerically complex quantities with quantities from time-dependent density functional theory. This results in a simple and … WebOct 31, 2013 · The interfacial electron-magnon interaction strength can be quite large, and hence important for the thin film materials, as the recent work on superconductivity induced in a metal due to ...

WebSep 13, 2024 · Here, we extend the observation of magnon drag in magnetically ordered materials to paramagnets in which the local thermal fluctuations of the magnetization (paramagnons) have a finite lifetime, τ L, and a spin-spin correlation length, ξ.We argue that when τ L ≫ τ me, the electron-on-magnon scattering time, and the spatial extent of the …

WebNov 13, 2024 · The curved arrow represents the SHE that generates an electronic spin current and the straight blue (red) arrow represents the electronic (magnonic) spin current contributions. The shaded blue (red) puddles represent electronic (magnonic) spin accumulation at the interface and the wavy black arrow represents the electron-magnon … flash pieceWebNov 22, 2024 · ] in the site basis for the system depicted in Fig. 1 composed of N = 3 sites hosting spin-5 2 localized spins and with electron-magnon interaction turned off (J sd = 0). (c) and (d) are their counterparts when the electron-magnon interaction is … check in assessment dates 2023WebJan 30, 2024 · As a result, the electron–electron interaction is the dominant interaction at low temperatures that contributes to the FL behavior. At high-temperature region, … check in a sharepoint documentWebDec 13, 2024 · We present an ab initio method for eletcronic structure calculations, which accounts for the interaction of electrons and magnons in ferromagnets. While it is based on a many body perturbation theory we approximate numerically complex quantities with quantities from time dependent density functional theory. This results in a simple and … check in assessment nswWebDec 26, 2024 · We study double ionization of Mg by electron impact through the vantage point of classical mechanics. We consider all electron-electron correlations in a … flash picture albumWebMay 5, 2024 · Abstract: We perform Eliashberg calculations for magnon-mediated superconductivity in a normal metal, where the electron-magnon interaction arises … check in assessment dataWebNo magnonelectron interaction will be considered. The procedure can be applied to calculate magnon relaxation times, to calculate the correction to the spontaneous magnetization due to magnon interaction and, finally, … flash picture editor