品牌
发表于 2025-3-30 11:19:48
Phase and Spin Relaxation Dynamics in High-Quality Single GaN/AlGaN Quantum WellWe report on the first time measurement, using four-wave mixing, of the dephasing time of excitons in a high-quality GaN/Al0.05Ga0.95N quantum well. The comparison with the exciton-spin lifetime, determined via pump-probe spectroscopy using polarized laser pulses, shows that spin relaxation occurs in the motional narrowing regime.
Abrupt
发表于 2025-3-30 15:10:27
Experimental Observations of Optical Spin Transfer and Spin-Orbit Torques in Magnetic SemiconductorsThe spin transfer and spin-orbit torques can be used for electrically driven magnetization dynamics. Here, we report on the experimental observation of the optical counterparts of these torques which lead to a sub-picosecond tilt of magnetization and, consequently, to the magnetization precession in (Ga,Mn)As.
Arable
发表于 2025-3-30 16:59:03
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Hemodialysis
发表于 2025-3-30 21:04:56
Ultrafast Non-local Spin Dynamics in Metallic Bi-Layers by Linear and Non-linear Magneto-OpticsWe make a step towards the understanding of spin dynamics induced by spin-polarized hot carriers in metals. Exciting the Fe layer of Au/Fe/MgO(001) structures with femtosecond laser pulses, we demonstrate the ultrafast spin transport from Fe into Au using time-resolved MOKE and mSHG for depth-sensitive detection of the transient magnetization.
Vulnerary
发表于 2025-3-31 04:13:50
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商业上
发表于 2025-3-31 05:58:03
Laser-Induced Spin Dynamics in Amorphous NdFeCoWe studied magnetization dynamics in the amorphous light rare earth-transition metal compound NdFeCo. We report a two step demagnetization process. Furthermore, an unusual overshooting behaviour is observed that can be linked to the particular magnetic structure of the sample.