Spin coherence length
WebJan 1, 2024 · Here, we report a long spin coherence length and associated bulk-like torque characteristics in an antiferromagnetically coupled ferrimagnetic multilayer. We find that …
Spin coherence length
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WebThe spin diffusion length is important in devices - you want to know how thick a layer you can make before electrons being injected into it change their spin orientation (measured relative to... Temporal coherence is the measure of the average correlation between the value of a wave and itself delayed by τ, at any pair of times. Temporal coherence tells us how monochromatic a source is. In other words, it characterizes how well a wave can interfere with itself at a different time. The delay over which the phase or amplitude wanders by a significant amount (and hence the correlatio…
WebAug 24, 2007 · In the cleanest samples, the quantum coherence length is 20 nanometers, which is almost an order of magnitude larger than the classical antiferromagnetic correlation length of 3 nanometers. We also demonstrate that the coherence length can be modified by static and thermally activated defects in a quantitatively predictable manner. WebDec 23, 2024 · The authors also discuss how spin transport in ferrimagnets is fundamentally different from that in ferromagnets due to conduction-electron spins moving in an …
WebJan 30, 2024 · We are able to excite spin-wave modes with frequencies of up to 0.6 THz and wavelengths as short as 6 nm using broadband terahertz radiation. Numerical simulations … WebJan 29, 2010 · Experimentally, the spin coherence lengths are found to be inversely proportional to wire width and to display a weak temperature dependence. For all wire …
WebAug 20, 2024 · From the cleaved metal halide crystals, we observe atomic terrace lengths of 1-5 microns. Since the length of the streaks for the pseudomorphic epitaxial layer is similar to the streak lengths from the substrate, this indicates that the terrace length is simply limited by that of substrate.
Webthe quantum phase coherence length and its dependence on wire width and diffusion coefficient in the wires. We model magnetotransport measurements, performed at low magnetic fields applied perpendicularly to the plane of the 2DES, in antilocalization theory in order to investigate the dependence on wire width w of the spin coherence length L journal of physical chemistry ifWebJun 2, 2024 · This mechanism appears to be supported qualitatively by a recent experiment reporting a spin coherence length of >10 nm in ferrimagnetic CoTb [2]. Yet, it remains an open question whether or how a spin current can stay coherent over such a long length scale, particularly considering the well-known strong spin-orbit coupling in CoTb. how to make 1 million dollars in one dayWebThe proton spin-lattice relaxation time T1 has been measured in a quasi one-dimensional S = 1 antiferromagnet NENP [Ni (C2H8N2)2NO2 (ClO4)] between 1.3 and 50 K, and between … how to make 1 million dollars investingWebSpin polarization, not only of electrons, but also of holes, nuclei, and the excitations, can be defined as PX = XS / X; where the ratio of the difference XS = Xλ − X−λ and the sum X = Xλ + X−λ of the spin-resolved λ components for a particular quantity X. how to make 1 million fastWebJan 20, 2024 · However, because of the short spin coherence length in ferromagnetic layers, the interfacial effective spin–orbit torque typically leads to high critical current density … how to make 1 million dollars onlineWebFeb 21, 2024 · The traditionally, well-known technique for detecting this effect has been the measurement of the spin coherence and phase coherence length of the electron wave … journal of physical chemistry letters期刊WebOct 4, 2024 · Here we show that the coherence time of a near-surface qubit is increased by coherent radio-frequency driving of surface electron spins, where we use a diamond nitrogen-vacancy (NV) center as a model qubit. journal of physical chemistry 影响因子